Bristol-myers Squibb Company
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Bristol-myers Squibb Company Drugs
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![Avalide (Irbesartan And Hydrochlorothiazide) Tablet Avalide (Irbesartan And Hydrochlorothiazide) Tablet, Film Coated [Bristol-myers Squibb Company]](http://dailymed.nlm.nih.gov/dailymed/image.cfm?setid=9ac8b9fe-dfb9-0151-30b3-f9da72d74ac2&name=avalide-150-12pt5-30s-trade-label.jpg)
Avalide
2.1 General Considerations
The side effects of irbesartan are generally rare and apparently independent of dose; those of hydrochlorothiazide are a mixture of dose-dependent (primarily hypokalemia) and dose-independent phenomena (e.g., pancreatitis), the former much more common than the latter. [See Adverse Reactions (6).]
Maximum antihypertensive effects are attained within 2 to 4 weeks after a change in dose.
AVALIDE may be administered with or without food.
AVALIDE may be administered with other antihypertensive agents.
Renal impairment. The usual regimens of therapy with AVALIDE may be followed as long as the patient's creatinine clearance is >30 mL/min. In patients with more severe renal impairment, loop diuretics are preferred to thiazides, so AVALIDE is not recommended.
Hepatic impairment. No dosage adjustment is necessary in patients with hepatic impairment.
2.2 Add-On Therapy
In patients not controlled on monotherapy with irbesartan or hydrochlorothiazide, the recommended doses of AVALIDE, in order of increasing mean effect, are (irbesartan-hydrochlorothiazide) 150/12.5 mg, 300/12.5 mg, and 300/25 mg. The largest incremental effect will likely be in the transition from monotherapy to 150/12.5 mg. [See Clinical Studies (14.2).]
2.3 Replacement Therapy
AVALIDE may be substituted for the titrated components.
2.4 Initial Therapy
The usual starting dose is AVALIDE 150/12.5 mg once daily. The dosage can be increased after 1 to 2 weeks of therapy to a maximum of 300/25 mg once daily as needed to control blood pressure [see Clinical Studies (14.2)]. AVALIDE is not recommended as initial therapy in patients with intravascular volume depletion [see Warnings and Precautions (5.2)].
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![Avapro (Irbesartan) Tablet [Bristol-myers Squibb Company]](http://dailymed.nlm.nih.gov/dailymed/image.cfm?setid=b7f1a9ef-c7bb-465c-e4d7-a41395205cad&name=avapro-150mg-trade-lbl.jpg)
Avapro
AVAPRO may be administered with other antihypertensive agents and with or without food.
Hypertension
The recommended initial dose of AVAPRO (irbesartan) is 150 mg once daily. Patients requiring further reduction in blood pressure should be titrated to 300 mg once daily.
A low dose of a diuretic may be added, if blood pressure is not controlled by AVAPRO alone. Hydrochlorothiazide has been shown to have an additive effect (see CLINICAL PHARMACOLOGY: Clinical Studies). Patients not adequately treated by the maximum dose of 300 mg once daily are unlikely to derive additional benefit from a higher dose or twice-daily dosing.
No dosage adjustment is necessary in elderly patients, or in patients with hepatic impairment or mild to severe renal impairment.
Nephropathy in Type 2 Diabetic Patients
The recommended target maintenance dose is 300 mg once daily. There are no data on the clinical effects of lower doses of AVAPRO on diabetic nephropathy (see CLINICAL PHARMACOLOGY: Clinical Studies).
Volume- and Salt-Depleted Patients
A lower initial dose of AVAPRO (75 mg) is recommended in patients with depletion of intravascular volume or salt (eg, patients treated vigorously with diuretics or on hemodialysis) (see WARNINGS: Hypotension in Volume- or Salt-Depleted Patients).
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![Videx Ec (Didanosine) Capsule, Delayed Release [Bristol-myers Squibb Company]](http://dailymed.nlm.nih.gov/dailymed/image.cfm?setid=4bc249f2-7e8b-05cb-38ad-3085e947e0f1&name=videx-ec-125mg-label.jpg)
Videx Ec
VIDEX EC should be administered on an empty stomach. VIDEX EC Delayed-Release Capsules should be swallowed intact.
2.1 Recommended Dosage (Adult and Pediatric Patients)
The recommended total daily dose is based on body weight and is administered as one capsule given on a once-daily schedule as outlined in Table 1.
The recommended total daily dose to be administered once daily to pediatric patients weighing at least 20 kg who can swallow capsules is based on body weight (kg), consistent with the recommended adult dosing guidelines (see Table 1). Please consult the complete prescribing information for VIDEX (didanosine) Pediatric Powder for Oral Solution for dosage and administration of didanosine to pediatric patients weighing less than 20 kg or who can not swallow capsules.
Table 1: Recommended Dosage (Adult and Pediatric Patients)Body Weight
Dose
20 kg to less than 25 kg
200 mg once daily
25 kg to less than 60 kg
250 mg once daily
at least 60 kg
400 mg once daily
2.2 Renal Impairment
Dosing recommendations for VIDEX EC and VIDEX Pediatric Powder for Oral Solution are different for patients with renal impairment. Please consult the complete prescribing information on administration of VIDEX (didanosine) Pediatric Powder for Oral Solution to patients with renal impairment.
Adult Patients
In adult patients with impaired renal function, the dose of VIDEX EC should be adjusted to compensate for the slower rate of elimination. The recommended doses and dosing intervals of VIDEX EC in adult patients with renal insufficiency are presented in Table 2.
Table 2: Recommended Dosage in Patients with Renal Impairment by Body Weighta Creatinine Clearance (mL/min) Dosage (mg) at least 60 kg less than 60 kg a Based on studies using a buffered formulation of didanosine.b Not suitable for use in patients less than 60 kg with CLcr less than 10 mL/min. An alternate formulation of didanosine should be used.at least 60
400 once daily
250 once daily
30-59
200 once daily
125 once daily
10-29
125 once daily
125 once daily
less than 10
125 once daily
b
Pediatric Patients
Urinary excretion is also a major route of elimination of didanosine in pediatric patients, therefore the clearance of didanosine may be altered in pediatric patients with renal impairment. Although there are insufficient data to recommend a specific dose adjustment of VIDEX EC in this patient population, a reduction in the dose should be considered (see Table 2).
Patients Requiring Continuous Ambulatory Peritoneal Dialysis (CAPD) or Hemodialysis
For patients requiring CAPD or hemodialysis, follow dosing recommendations for patients with creatinine clearance of less than 10 mL/min, shown in Table 2. It is not necessary to administer a supplemental dose of didanosine following hemodialysis.
2.3 Dose Adjustment
Concomitant Therapy with Tenofovir Disoproxil Fumarate
In patients who are also taking tenofovir disoproxil fumarate, a dose reduction of VIDEX EC to 250 mg (adults weighing at least 60 kg with creatinine clearance of at least 60 mL/min) or 200 mg (adults weighing less than 60 kg with creatinine clearance of at least 60 mL/min) once daily taken together with tenofovir disoproxil fumarate and a light meal (400 kcalories or less, 20% fat or less) or in the fasted state is recommended. The appropriate dose of VIDEX EC coadministered with tenofovir disoproxil fumarate in patients with creatinine clearance of less than 60 mL/min has not been established [see Drug Interactions (7) and Clinical Pharmacology (12.3)].
Hepatic Impairment
No dose adjustment is required in patients with hepatic impairment [see Warnings and Precautions (5.3) and Clinical Pharmacology (12.3)].
2.1 Recommended Dosage (Adult and Pediatric Patients)
The recommended total daily dose is based on body weight and is administered as one capsule given on a once-daily schedule as outlined in Table 1.
The recommended total daily dose to be administered once daily to pediatric patients weighing at least 20 kg who can swallow capsules is based on body weight (kg), consistent with the recommended adult dosing guidelines (see Table 1). Please consult the complete prescribing information for VIDEX (didanosine) Pediatric Powder for Oral Solution for dosage and administration of didanosine to pediatric patients weighing less than 20 kg or who can not swallow capsules.
Table 1: Recommended Dosage (Adult and Pediatric Patients)Body Weight
Dose
20 kg to less than 25 kg
200 mg once daily
25 kg to less than 60 kg
250 mg once daily
at least 60 kg
400 mg once daily
2.2 Renal Impairment
Dosing recommendations for VIDEX EC and VIDEX Pediatric Powder for Oral Solution are different for patients with renal impairment. Please consult the complete prescribing information on administration of VIDEX (didanosine) Pediatric Powder for Oral Solution to patients with renal impairment.
Adult Patients
In adult patients with impaired renal function, the dose of VIDEX EC should be adjusted to compensate for the slower rate of elimination. The recommended doses and dosing intervals of VIDEX EC in adult patients with renal insufficiency are presented in Table 2.
Table 2: Recommended Dosage in Patients with Renal Impairment by Body Weighta Creatinine Clearance (mL/min) Dosage (mg) at least 60 kg less than 60 kg a Based on studies using a buffered formulation of didanosine.b Not suitable for use in patients less than 60 kg with CLcr less than 10 mL/min. An alternate formulation of didanosine should be used.at least 60
400 once daily
250 once daily
30-59
200 once daily
125 once daily
10-29
125 once daily
125 once daily
less than 10
125 once daily
b
Pediatric Patients
Urinary excretion is also a major route of elimination of didanosine in pediatric patients, therefore the clearance of didanosine may be altered in pediatric patients with renal impairment. Although there are insufficient data to recommend a specific dose adjustment of VIDEX EC in this patient population, a reduction in the dose should be considered (see Table 2).
Patients Requiring Continuous Ambulatory Peritoneal Dialysis (CAPD) or Hemodialysis
For patients requiring CAPD or hemodialysis, follow dosing recommendations for patients with creatinine clearance of less than 10 mL/min, shown in Table 2. It is not necessary to administer a supplemental dose of didanosine following hemodialysis.
Adult Patients
In adult patients with impaired renal function, the dose of VIDEX EC should be adjusted to compensate for the slower rate of elimination. The recommended doses and dosing intervals of VIDEX EC in adult patients with renal insufficiency are presented in Table 2.
Table 2: Recommended Dosage in Patients with Renal Impairment by Body Weighta Creatinine Clearance (mL/min) Dosage (mg) at least 60 kg less than 60 kg a Based on studies using a buffered formulation of didanosine.b Not suitable for use in patients less than 60 kg with CLcr less than 10 mL/min. An alternate formulation of didanosine should be used.at least 60
400 once daily
250 once daily
30-59
200 once daily
125 once daily
10-29
125 once daily
125 once daily
less than 10
125 once daily
b
Pediatric Patients
Urinary excretion is also a major route of elimination of didanosine in pediatric patients, therefore the clearance of didanosine may be altered in pediatric patients with renal impairment. Although there are insufficient data to recommend a specific dose adjustment of VIDEX EC in this patient population, a reduction in the dose should be considered (see Table 2).
Patients Requiring Continuous Ambulatory Peritoneal Dialysis (CAPD) or Hemodialysis
For patients requiring CAPD or hemodialysis, follow dosing recommendations for patients with creatinine clearance of less than 10 mL/min, shown in Table 2. It is not necessary to administer a supplemental dose of didanosine following hemodialysis.
2.3 Dose Adjustment
Concomitant Therapy with Tenofovir Disoproxil Fumarate
In patients who are also taking tenofovir disoproxil fumarate, a dose reduction of VIDEX EC to 250 mg (adults weighing at least 60 kg with creatinine clearance of at least 60 mL/min) or 200 mg (adults weighing less than 60 kg with creatinine clearance of at least 60 mL/min) once daily taken together with tenofovir disoproxil fumarate and a light meal (400 kcalories or less, 20% fat or less) or in the fasted state is recommended. The appropriate dose of VIDEX EC coadministered with tenofovir disoproxil fumarate in patients with creatinine clearance of less than 60 mL/min has not been established [see Drug Interactions (7) and Clinical Pharmacology (12.3)].
Hepatic Impairment
No dose adjustment is required in patients with hepatic impairment [see Warnings and Precautions (5.3) and Clinical Pharmacology (12.3)].
Concomitant Therapy with Tenofovir Disoproxil Fumarate
In patients who are also taking tenofovir disoproxil fumarate, a dose reduction of VIDEX EC to 250 mg (adults weighing at least 60 kg with creatinine clearance of at least 60 mL/min) or 200 mg (adults weighing less than 60 kg with creatinine clearance of at least 60 mL/min) once daily taken together with tenofovir disoproxil fumarate and a light meal (400 kcalories or less, 20% fat or less) or in the fasted state is recommended. The appropriate dose of VIDEX EC coadministered with tenofovir disoproxil fumarate in patients with creatinine clearance of less than 60 mL/min has not been established [see Drug Interactions (7) and Clinical Pharmacology (12.3)].
Hepatic Impairment
No dose adjustment is required in patients with hepatic impairment [see Warnings and Precautions (5.3) and Clinical Pharmacology (12.3)].
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![Glucophage (Metformin Hydrochloride) Tablet, Film Coated Glucophage Xr (Metformin Hydrochloride) Tablet, Extended Release [Bristol-myers Squibb Company]](http://dailymed.nlm.nih.gov/dailymed/image.cfm?setid=4a0166c7-7097-4e4a-9036-6c9a60d08fc6&name=glucophage-1000mg-btl-lbl.jpg)
Glucophage
There is no fixed dosage regimen for the management of hyperglycemia in patients with type 2 diabetes with GLUCOPHAGE or GLUCOPHAGE XR or any other pharmacologic agent. Dosage of GLUCOPHAGE or GLUCOPHAGE XR must be individualized on the basis of both effectiveness and tolerance, while not exceeding the maximum recommended daily doses. The maximum recommended daily dose of GLUCOPHAGE is 2550 mg in adults and 2000 mg in pediatric patients (10-16 years of age); the maximum recommended daily dose of GLUCOPHAGE XR in adults is 2000 mg.
GLUCOPHAGE should be given in divided doses with meals while GLUCOPHAGE XR should generally be given once daily with the evening meal. GLUCOPHAGE or GLUCOPHAGE XR should be started at a low dose, with gradual dose escalation, both to reduce gastrointestinal side effects and to permit identification of the minimum dose required for adequate glycemic control of the patient.
During treatment initiation and dose titration (see Recommended Dosing Schedule), fasting plasma glucose should be used to determine the therapeutic response to GLUCOPHAGE or GLUCOPHAGE XR and identify the minimum effective dose for the patient. Thereafter, glycosylated hemoglobin should be measured at intervals of approximately 3 months. The therapeutic goal should be to decrease both fasting plasma glucose and glycosylated hemoglobin levels to normal or near normal by using the lowest effective dose of GLUCOPHAGE or GLUCOPHAGE XR, either when used as monotherapy or in combination with sulfonylurea or insulin.
Monitoring of blood glucose and glycosylated hemoglobin will also permit detection of primary failure, i.e., inadequate lowering of blood glucose at the maximum recommended dose of medication, and secondary failure, i.e., loss of an adequate blood glucose lowering response after an initial period of effectiveness.
Short-term administration of GLUCOPHAGE or GLUCOPHAGE XR may be sufficient during periods of transient loss of control in patients usually well-controlled on diet alone.
GLUCOPHAGE XR tablets must be swallowed whole and never crushed or chewed. Occasionally, the inactive ingredients of GLUCOPHAGE XR will be eliminated in the feces as a soft, hydrated mass. (See Patient Information printed below.)
Recommended Dosing Schedule
Adults
In general, clinically significant responses are not seen at doses below 1500 mg per day. However, a lower recommended starting dose and gradually increased dosage is advised to minimize gastrointestinal symptoms.
The usual starting dose of GLUCOPHAGE Tablets is 500 mg twice a day or 850 mg once a day, given with meals. Dosage increases should be made in increments of 500 mg weekly or 850 mg every 2 weeks, up to a total of 2000 mg per day, given in divided doses. Patients can also be titrated from 500 mg twice a day to 850 mg twice a day after 2 weeks. For those patients requiring additional glycemic control, GLUCOPHAGE may be given to a maximum daily dose of 2550 mg per day. Doses above 2000 mg may be better tolerated given 3 times a day with meals.
The usual starting dose of GLUCOPHAGE XR (metformin hydrochloride) Extended-Release Tablets is 500 mg once daily with the evening meal. Dosage increases should be made in increments of 500 mg weekly, up to a maximum of 2000 mg once daily with the evening meal. If glycemic control is not achieved on GLUCOPHAGE XR 2000 mg once daily, a trial of GLUCOPHAGE XR 1000 mg twice daily should be considered. If higher doses of metformin are required, GLUCOPHAGE should be used at total daily doses up to 2550 mg administered in divided daily doses, as described above. (See CLINICAL PHARMACOLOGY: Clinical Studies.)
In a randomized trial, patients currently treated with GLUCOPHAGE were switched to GLUCOPHAGE XR. Results of this trial suggest that patients receiving GLUCOPHAGE treatment may be safely switched to GLUCOPHAGE XR once daily at the same total daily dose, up to 2000 mg once daily. Following a switch from GLUCOPHAGE to GLUCOPHAGE XR, glycemic control should be closely monitored and dosage adjustments made accordingly (see CLINICAL PHARMACOLOGY: Clinical Studies).
Pediatrics
The usual starting dose of GLUCOPHAGE is 500 mg twice a day, given with meals. Dosage increases should be made in increments of 500 mg weekly up to a maximum of 2000 mg per day, given in divided doses. Safety and effectiveness of GLUCOPHAGE XR in pediatric patients have not been established.
Transfer From Other Antidiabetic Therapy
When transferring patients from standard oral hypoglycemic agents other than chlorpropamide to GLUCOPHAGE or GLUCOPHAGE XR, no transition period generally is necessary. When transferring patients from chlorpropamide, care should be exercised during the first 2 weeks because of the prolonged retention of chlorpropamide in the body, leading to overlapping drug effects and possible hypoglycemia.
Concomitant GLUCOPHAGE or GLUCOPHAGE XR and Oral Sulfonylurea Therapy in Adult Patients
If patients have not responded to 4 weeks of the maximum dose of GLUCOPHAGE or GLUCOPHAGE XR monotherapy, consideration should be given to gradual addition of an oral sulfonylurea while continuing GLUCOPHAGE or GLUCOPHAGE XR at the maximum dose, even if prior primary or secondary failure to a sulfonylurea has occurred. Clinical and pharmacokinetic drug-drug interaction data are currently available only for metformin plus glyburide (glibenclamide).
With concomitant GLUCOPHAGE or GLUCOPHAGE XR and sulfonylurea therapy, the desired control of blood glucose may be obtained by adjusting the dose of each drug. In a clinical trial of patients with type 2 diabetes and prior failure on glyburide, patients started on GLUCOPHAGE 500 mg and glyburide 20 mg were titrated to 1000/20 mg, 1500/20 mg, 2000/20 mg, or 2500/20 mg of GLUCOPHAGE and glyburide, respectively, to reach the goal of glycemic control as measured by FPG, HbA1c, and plasma glucose response (see CLINICAL PHARMACOLOGY: Clinical Studies). However, attempts should be made to identify the minimum effective dose of each drug to achieve this goal. With concomitant GLUCOPHAGE or GLUCOPHAGE XR and sulfonylurea therapy, the risk of hypoglycemia associated with sulfonylurea therapy continues and may be increased. Appropriate precautions should be taken. (See Package Insert of the respective sulfonylurea.)
If patients have not satisfactorily responded to 1 to 3 months of concomitant therapy with the maximum dose of GLUCOPHAGE or GLUCOPHAGE XR and the maximum dose of an oral sulfonylurea, consider therapeutic alternatives including switching to insulin with or without GLUCOPHAGE or GLUCOPHAGE XR.
Concomitant GLUCOPHAGE or GLUCOPHAGE XR and Insulin Therapy in Adult Patients
The current insulin dose should be continued upon initiation of GLUCOPHAGE or GLUCOPHAGE XR therapy. GLUCOPHAGE or GLUCOPHAGE XR therapy should be initiated at 500 mg once daily in patients on insulin therapy. For patients not responding adequately, the dose of GLUCOPHAGE or GLUCOPHAGE XR should be increased by 500 mg after approximately 1 week and by 500 mg every week thereafter until adequate glycemic control is achieved. The maximum recommended daily dose is 2500 mg for GLUCOPHAGE and 2000 mg for GLUCOPHAGE XR. It is recommended that the insulin dose be decreased by 10% to 25% when fasting plasma glucose concentrations decrease to less than 120 mg/dL in patients receiving concomitant insulin and GLUCOPHAGE or GLUCOPHAGE XR. Further adjustment should be individualized based on glucose-lowering response.
Specific Patient Populations
GLUCOPHAGE or GLUCOPHAGE XR are not recommended for use in pregnancy. GLUCOPHAGE is not recommended in patients below the age of 10 years. GLUCOPHAGE XR is not recommended in pediatric patients (below the age of 17 years).
The initial and maintenance dosing of GLUCOPHAGE or GLUCOPHAGE XR should be conservative in patients with advanced age, due to the potential for decreased renal function in this population. Any dosage adjustment should be based on a careful assessment of renal function. Generally, elderly, debilitated, and malnourished patients should not be titrated to the maximum dose of GLUCOPHAGE or GLUCOPHAGE XR.
Monitoring of renal function is necessary to aid in prevention of lactic acidosis, particularly in the elderly. (See WARNINGS.)
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![Videx (Didanosine) Powder, For Solution [Bristol-myers Squibb Company]](http://dailymed.nlm.nih.gov/dailymed/image.cfm?setid=d4401ca0-98ae-af38-84c7-2f615d0706b9&name=videx-2g-label.jpg)
Videx
VIDEX should be administered on an empty stomach, at least 30 minutes before or 2 hours after eating.
2.1 Recommended Dosage (Adult and Pediatric Patients)
The preferred dosing frequency of VIDEX is twice daily because there is more evidence to support the effectiveness of this dosing regimen. Once-daily dosing should be considered only for patients whose management requires once-daily dosing of VIDEX [see Clinical Studies (14)]. The recommended adult total daily dose is based on body weight (kg) (see Table 1).
Table 1: Recommended Dosage (Adult) at least 60 kg less than 60 kgPreferred dosing
200 mg twice daily
125 mg twice daily
Dosing for patients whose management requires once-daily frequency
400 mg once daily
250 mg once daily
Pediatric Patients (2 weeks old to 18 years old): The recommended dose of VIDEX (didanosine) in pediatric patients between 2 weeks old and 8 months old is 100 mg per m2 twice daily, and the recommended VIDEX dose for pediatric patients greater than 8 months old is 120 mg per m2 twice daily but not to exceed the adult dosing recommendation.
Dosing recommendations in patients less than 2 weeks of age cannot be made because the pharmacokinetics of didanosine in these children are too variable to determine an appropriate dose. There are no data on once-daily dosing of VIDEX in pediatric patients.
2.2 Renal Impairment
Adult Patients
In adult patients with impaired renal function, the dose of VIDEX should be adjusted to compensate for the slower rate of elimination. The recommended doses and dosing intervals of VIDEX in adult patients with renal insufficiency are presented in Table 2.
Table 2: Recommended Dosage in Patients with Renal Impairment a 400 mg once daily (at least 60 kg) or 250 mg once daily (less than 60 kg) for patients whose management requires once-daily frequency of administration.Creatinine Clearance (mL/min)
Recommended VIDEX Dose by Patient Weight
at least 60 kg
less than 60 kg
at least 60
200 mg twice dailya
125 mg twice dailya
30-59
200 mg once dailyor 100 mg twice daily
150 mg once dailyor 75 mg twice daily
10-29
150 mg once daily
100 mg once daily
less than 10
100 mg once daily
75 mg once daily
Pediatric Patients
Urinary excretion is also a major route of elimination of didanosine in pediatric patients, therefore the clearance of didanosine may be altered in pediatric patients with renal impairment. Although there are insufficient data to recommend a specific dose adjustment of VIDEX in this patient population, a reduction in the dose should be considered (see Table 2).
Patients Requiring Continuous Ambulatory Peritoneal Dialysis (CAPD) or Hemodialysis
For patients requiring CAPD or hemodialysis, follow dosing recommendations for patients with creatinine clearance of less than 10 mL per min, shown in Table 2. It is not necessary to administer a supplemental dose of VIDEX following hemodialysis.
2.3 Dosage Adjustment
Concomitant Therapy with Tenofovir Disoproxil Fumarate
In patients who are also taking tenofovir disoproxil fumarate, a dose reduction of VIDEX to 250 mg (adults weighing at least 60 kg with creatinine clearance of at least 60 mL per min) or 200 mg (adults weighing less than 60 kg with creatinine clearance of at least 60 mL per min) once daily is recommended. VIDEX and tenofovir disoproxil fumarate may be taken together in the fasted state. Alternatively, if tenofovir disoproxil fumarate is taken with food, VIDEX should be taken on an empty stomach (at least 30 minutes before food or 2 hours after food). The appropriate dose of VIDEX coadministered with tenofovir disoproxil fumarate in patients with creatinine clearance of less than 60 mL per min has not been established. ([See Drug Interactions (7) and Clinical Pharmacology (12.3)]; see the complete prescribing information for VIDEX EC (enteric-coated formulation of didanosine) for results of drug interaction studies of tenofovir disoproxil fumarate with reduced doses of the enteric-coated formulation of didanosine.)
Hepatic Impairment
No dose adjustment is required in patients with hepatic impairment [see Warnings and Precautions (5.3) and Clinical Pharmacology (12.3)].
2.4 Instructions for Reconstitution
Prior to dispensing, the pharmacist must reconstitute dry powder with Purified Water, USP, to an initial concentration of 20 mg per mL and immediately mix the resulting solution with antacid to a final concentration of 10 mg per mL as follows:
20 mg per mL Initial Solution
Reconstitute the product to 20 mg per mL by adding 100 mL or 200 mL of Purified Water, USP, to the 2 g or 4 g of VIDEX powder, respectively, in the product bottle.
10 mg per mL Final Admixture
1. Immediately mix one part of the 20 mg per mL initial solution with one part of any commercially available antacid that contains as active ingredients aluminum hydroxide (400 mg per 5 mL), magnesium hydroxide (400 mg per 5 mL), and simethicone (40 mg per 5 mL) for a final dispensing concentration of 10 mg VIDEX per mL. For patient home use, the admixture should be dispensed in appropriately sized, flint-glass or plastic (HDPE, PET, or PETG) bottles with child-resistant closures. 2. Instruct the patient to shake the admixture thoroughly prior to use and to store the tightly closed container in the refrigerator.The bottles of powder should be stored at 59° F to 86° F (15° C to 30° C). The VIDEX admixture may be stored up to 30 days in a refrigerator, 36° F to 46° F (2° C to 8° C). Discard any unused portion after 30 days.
2.1 Recommended Dosage (Adult and Pediatric Patients)
The preferred dosing frequency of VIDEX is twice daily because there is more evidence to support the effectiveness of this dosing regimen. Once-daily dosing should be considered only for patients whose management requires once-daily dosing of VIDEX [see Clinical Studies (14)]. The recommended adult total daily dose is based on body weight (kg) (see Table 1).
Table 1: Recommended Dosage (Adult) at least 60 kg less than 60 kgPreferred dosing
200 mg twice daily
125 mg twice daily
Dosing for patients whose management requires once-daily frequency
400 mg once daily
250 mg once daily
Pediatric Patients (2 weeks old to 18 years old): The recommended dose of VIDEX (didanosine) in pediatric patients between 2 weeks old and 8 months old is 100 mg per m2 twice daily, and the recommended VIDEX dose for pediatric patients greater than 8 months old is 120 mg per m2 twice daily but not to exceed the adult dosing recommendation.
Dosing recommendations in patients less than 2 weeks of age cannot be made because the pharmacokinetics of didanosine in these children are too variable to determine an appropriate dose. There are no data on once-daily dosing of VIDEX in pediatric patients.
2.2 Renal Impairment
Adult Patients
In adult patients with impaired renal function, the dose of VIDEX should be adjusted to compensate for the slower rate of elimination. The recommended doses and dosing intervals of VIDEX in adult patients with renal insufficiency are presented in Table 2.
Table 2: Recommended Dosage in Patients with Renal Impairment a 400 mg once daily (at least 60 kg) or 250 mg once daily (less than 60 kg) for patients whose management requires once-daily frequency of administration.Creatinine Clearance (mL/min)
Recommended VIDEX Dose by Patient Weight
at least 60 kg
less than 60 kg
at least 60
200 mg twice dailya
125 mg twice dailya
30-59
200 mg once dailyor 100 mg twice daily
150 mg once dailyor 75 mg twice daily
10-29
150 mg once daily
100 mg once daily
less than 10
100 mg once daily
75 mg once daily
Pediatric Patients
Urinary excretion is also a major route of elimination of didanosine in pediatric patients, therefore the clearance of didanosine may be altered in pediatric patients with renal impairment. Although there are insufficient data to recommend a specific dose adjustment of VIDEX in this patient population, a reduction in the dose should be considered (see Table 2).
Patients Requiring Continuous Ambulatory Peritoneal Dialysis (CAPD) or Hemodialysis
For patients requiring CAPD or hemodialysis, follow dosing recommendations for patients with creatinine clearance of less than 10 mL per min, shown in Table 2. It is not necessary to administer a supplemental dose of VIDEX following hemodialysis.
Adult Patients
In adult patients with impaired renal function, the dose of VIDEX should be adjusted to compensate for the slower rate of elimination. The recommended doses and dosing intervals of VIDEX in adult patients with renal insufficiency are presented in Table 2.
Table 2: Recommended Dosage in Patients with Renal Impairment a 400 mg once daily (at least 60 kg) or 250 mg once daily (less than 60 kg) for patients whose management requires once-daily frequency of administration.Creatinine Clearance (mL/min)
Recommended VIDEX Dose by Patient Weight
at least 60 kg
less than 60 kg
at least 60
200 mg twice dailya
125 mg twice dailya
30-59
200 mg once dailyor 100 mg twice daily
150 mg once dailyor 75 mg twice daily
10-29
150 mg once daily
100 mg once daily
less than 10
100 mg once daily
75 mg once daily
Pediatric Patients
Urinary excretion is also a major route of elimination of didanosine in pediatric patients, therefore the clearance of didanosine may be altered in pediatric patients with renal impairment. Although there are insufficient data to recommend a specific dose adjustment of VIDEX in this patient population, a reduction in the dose should be considered (see Table 2).
Patients Requiring Continuous Ambulatory Peritoneal Dialysis (CAPD) or Hemodialysis
For patients requiring CAPD or hemodialysis, follow dosing recommendations for patients with creatinine clearance of less than 10 mL per min, shown in Table 2. It is not necessary to administer a supplemental dose of VIDEX following hemodialysis.
2.3 Dosage Adjustment
Concomitant Therapy with Tenofovir Disoproxil Fumarate
In patients who are also taking tenofovir disoproxil fumarate, a dose reduction of VIDEX to 250 mg (adults weighing at least 60 kg with creatinine clearance of at least 60 mL per min) or 200 mg (adults weighing less than 60 kg with creatinine clearance of at least 60 mL per min) once daily is recommended. VIDEX and tenofovir disoproxil fumarate may be taken together in the fasted state. Alternatively, if tenofovir disoproxil fumarate is taken with food, VIDEX should be taken on an empty stomach (at least 30 minutes before food or 2 hours after food). The appropriate dose of VIDEX coadministered with tenofovir disoproxil fumarate in patients with creatinine clearance of less than 60 mL per min has not been established. ([See Drug Interactions (7) and Clinical Pharmacology (12.3)]; see the complete prescribing information for VIDEX EC (enteric-coated formulation of didanosine) for results of drug interaction studies of tenofovir disoproxil fumarate with reduced doses of the enteric-coated formulation of didanosine.)
Hepatic Impairment
No dose adjustment is required in patients with hepatic impairment [see Warnings and Precautions (5.3) and Clinical Pharmacology (12.3)].
Concomitant Therapy with Tenofovir Disoproxil Fumarate
In patients who are also taking tenofovir disoproxil fumarate, a dose reduction of VIDEX to 250 mg (adults weighing at least 60 kg with creatinine clearance of at least 60 mL per min) or 200 mg (adults weighing less than 60 kg with creatinine clearance of at least 60 mL per min) once daily is recommended. VIDEX and tenofovir disoproxil fumarate may be taken together in the fasted state. Alternatively, if tenofovir disoproxil fumarate is taken with food, VIDEX should be taken on an empty stomach (at least 30 minutes before food or 2 hours after food). The appropriate dose of VIDEX coadministered with tenofovir disoproxil fumarate in patients with creatinine clearance of less than 60 mL per min has not been established. ([See Drug Interactions (7) and Clinical Pharmacology (12.3)]; see the complete prescribing information for VIDEX EC (enteric-coated formulation of didanosine) for results of drug interaction studies of tenofovir disoproxil fumarate with reduced doses of the enteric-coated formulation of didanosine.)
Hepatic Impairment
No dose adjustment is required in patients with hepatic impairment [see Warnings and Precautions (5.3) and Clinical Pharmacology (12.3)].
2.4 Instructions for Reconstitution
Prior to dispensing, the pharmacist must reconstitute dry powder with Purified Water, USP, to an initial concentration of 20 mg per mL and immediately mix the resulting solution with antacid to a final concentration of 10 mg per mL as follows:
20 mg per mL Initial Solution
Reconstitute the product to 20 mg per mL by adding 100 mL or 200 mL of Purified Water, USP, to the 2 g or 4 g of VIDEX powder, respectively, in the product bottle.
10 mg per mL Final Admixture
1. Immediately mix one part of the 20 mg per mL initial solution with one part of any commercially available antacid that contains as active ingredients aluminum hydroxide (400 mg per 5 mL), magnesium hydroxide (400 mg per 5 mL), and simethicone (40 mg per 5 mL) for a final dispensing concentration of 10 mg VIDEX per mL. For patient home use, the admixture should be dispensed in appropriately sized, flint-glass or plastic (HDPE, PET, or PETG) bottles with child-resistant closures. 2. Instruct the patient to shake the admixture thoroughly prior to use and to store the tightly closed container in the refrigerator.The bottles of powder should be stored at 59° F to 86° F (15° C to 30° C). The VIDEX admixture may be stored up to 30 days in a refrigerator, 36° F to 46° F (2° C to 8° C). Discard any unused portion after 30 days.
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