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Uses
OMNISCAN is a gadolinium-based contrast agent indicated for intravenous use in MRI to visualize lesions with abnormal vascularity (or those thought to cause abnormalities in the blood-brain barrier) in the brain (intracranial lesions), spine, and associated tissues [see Clinical Studies (14.1)].
OMNISCAN is a gadolinium-based contrast agent indicated for intravenous use in MRI to facilitate the visualization of lesions with abnormal vascularity within the thoracic (noncardiac), abdominal, pelvic cavities, and the retroperitoneal space [see Clinical Studies (14.2)].
History
There is currently no drug history available for this drug.
Other Information
OMNISCAN (gadodiamide) Injection is the formulation of the gadolinium complex of diethylenetriamine pentaacetic acid bismethylamide, and is an injectable, nonionic extracellular enhancing agent for magnetic resonance imaging. OMNISCAN is administered by intravenous injection.
OMNISCAN is provided as a sterile, clear, colorless to slightly yellow, aqueous solution. Each 1 mL contains 287 mg gadodiamide and 12 mg caldiamide sodium in Water for Injection. The pH is adjusted between 5.5 and 7.0 with hydrochloric acid and/or sodium hydroxide. OMNISCAN contains no antimicrobial preservative. OMNISCAN is a 0.5 mol/L solution of aqua[5,8-bis(carboxymethyl)-11-[2- (methylamino)-2-oxoethyl]-3-oxo-2,5,8,11-tetraazatridecan-13-oato (3-)-N5, N8, N11, O3, O5, O8, O11, O13] gadolinium hydrate, with a molecular weight of 573.66 (anhydrous), an empirical formula of C16H28GdN5O9•xH2O, and the following structural formula:
Pertinent physicochemical data for OMNISCAN are noted below:
Osmolality (mOsmol/kg water) | @ 37°C | 789 |
Viscosity (cP) | @ 20°C @ 37°C |
2 1.4 |
Density (g/mL) | @ 25°C | 1.14 |
Specific gravity | @ 25°C | 1.15 |
OMNISCAN has an osmolality approximately 2.8 times that of plasma at 37°C and is hypertonic under conditions of use.
Sources
Omniscan Manufacturers
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Ge Healthcare Inc.
Omniscan | Ge Healthcare Inc.
2.1 CNS (Central Nervous System)Adults: The recommended dose of OMNISCAN is 0.2 mL/kg (0.1 mmol/kg) administered as a bolus intravenous injection.
Pediatric Patients (2-16 years): The recommended dose of OMNISCAN is 0.2 mL/kg (0.1 mmol/kg) administered as a bolus intravenous injection [see Dosage and Administration (2.3)].
2.2 Body (Intrathoracic [noncardiac], Intra-abdominal, Pelvic and Retroperitoneal Regions)Adult and Pediatric Patients (2-16 years of age): For imaging the kidney, the recommended dose of OMNISCAN is 0.1 mL/kg (0.05 mmol/kg). For imaging the intrathoracic (noncardiac), intra-abdominal, and pelvic cavities, the recommended dose of OMNISCAN is 0.2 mL/kg (0.1 mmol/kg) [see Dosage and Administration (2.3)].
2.3 Dosage Chart BODY
WEIGHT PEDIATRIC ADULTS 0.05 0.1 0.05 0.1 (mmol/kg) (mmol/kg) kg lb VOLUME (mL) VOLUME (mL) * The heaviest patient in clinical studies weighed 136 kg. 12 26 1.2 2.4 - - 14 31 1.4 2.8 - - 16 35 1.6 3.2 - - 18 40 1.8 3.6 - - 20 44 2 4 - - 22 48 2.2 4.4 - - 24 53 2.4 4.8 - - 26 57 2.6 5.2 - - 28 62 2.8 5.6 - - 30 66 3 6 - - 40 88 4 8 4 8 50 110 5 10 5 10 60 132 6 12 6 12 70 154 7 14 7 14 80 176 8 16 8 16 90 198 - - 9 18 100 220 - - 10 20 110 242 - - 11 22 120 264 - - 12 24 130* 286 - - 13 26 2.4 Dosing GuidelinesInspect OMNISCAN visually for particulate matter and discoloration before administration, whenever solution and container permit.
Do not use the solution if it is discolored or particulate matter is present.
Draw OMNISCAN into the syringe and use immediately. Discard any unused portion of OMNISCAN Injection.
To ensure complete delivery of the desired volume of contrast medium, follow the injection of OMNISCAN with a 5 mL flush of 0.9% sodium chloride, as provided in the Prefill Plus needle-free system. Complete the imaging procedure within 1 hour of administration of OMNISCAN.
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Ge Healthcare Inc.
Omniscan | Ge Healthcare Inc.
2.1 CNS (Central Nervous System)Adults: The recommended dose of OMNISCAN is 0.2 mL/kg (0.1 mmol/kg) administered as a bolus intravenous injection.
Pediatric Patients (2-16 years): The recommended dose of OMNISCAN is 0.2 mL/kg (0.1 mmol/kg) administered as a bolus intravenous injection [see Dosage and Administration (2.3)].
2.2 Body (Intrathoracic [noncardiac], Intra-abdominal, Pelvic and Retroperitoneal Regions)Adult and Pediatric Patients (2-16 years of age): For imaging the kidney, the recommended dose of OMNISCAN is 0.1 mL/kg (0.05 mmol/kg). For imaging the intrathoracic (noncardiac), intra-abdominal, and pelvic cavities, the recommended dose of OMNISCAN is 0.2 mL/kg (0.1 mmol/kg) [see Dosage and Administration (2.3)].
2.3 Dosage Chart BODY WEIGHT PEDIATRIC ADULTS kg lb 0.05 0.1 0.05 0.1 (mmol/kg) (mmol/kg) VOLUME (mL) VOLUME (mL) * The heaviest patient in clinical studies weighed 136 kg. 12 26 1.2 2.4 - - 14 31 1.4 2.8 - - 16 35 1.6 3.2 - - 18 40 1.8 3.6 - - 20 44 2 4 - - 22 48 2.2 4.4 - - 24 53 2.4 4.8 - - 26 57 2.6 5.2 - - 28 62 2.8 5.6 - - 30 66 3 6 - - 40 88 4 8 4 8 50 110 5 10 5 10 60 132 6 12 6 12 70 154 7 14 7 14 80 176 8 16 8 16 90 198 - - 9 18 100 220 - - 10 20 110 242 - - 11 22 120 264 - - 12 24 130* 286 - - 13 26 2.4 Dosing GuidelinesInspect OMNISCAN visually for particulate matter and discoloration before administration, whenever solution and container permit.
Do not use the solution if it is discolored or particulate matter is present.
Draw OMNISCAN into the syringe and use immediately. Discard any unused portion of OMNISCAN Injection.
To ensure complete delivery of the desired volume of contrast medium, follow the injection of OMNISCAN with a 5 mL flush of 0.9% sodium chloride, as provided in the Prefill Plus needle-free system. Complete the imaging procedure within 1 hour of administration of OMNISCAN.
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Ge Healthcare Inc.
Omniscan | Pd-rx Pharmaceuticals, Inc.
There is considerable variation from patient to patient in the amount of medication required for treatment. As with all antipsychotic drugs, dosage should be individualized according to the needs and response of each patient. Dosage adjustments, either upward or downward, should be carried out as rapidly as practicable to achieve optimum therapeutic control.
To determine the initial dosage, consideration should be given to the patient’s age, severity of illness, previous response to other antipsychotic drugs, and any concomitant medication or disease state. Children, debilitated or geriatric patients, as well as those with a history of adverse reactions to antipsychotic drugs, may require less haloperidol. The optimal response in such patients is usually obtained with more gradual dosage adjustments and at lower dosage levels, as recommended below.
Clinical experience suggests the following recommendations:
Oral Administration Inital Dosage Range AdultsModerate Symptomatology - 0.5 mg to 2 mg b.i.d. or t.i.d.
Severe Symptomatology - 3 mg to 5 mg b.i.d. or t.i.d.
To achieve prompt control, higher doses may be required in some cases.
Geriatric or Debilitated Patients - 0.5 mg to 2 mg b.i.d. or t.i.d.
Chronic or Resistant Patients - 3 mg to 5 mg b.i.d. or t.i.d.
Patients who remain severely disturbed or inadequately controlled may require dosage adjustment. Daily dosages up to 100 mg may be necessary in some cases to achieve an optimal response. Infrequently haloperidol has been used in doses above 100 mg for severely resistant patients; however the limited clinical usage has not demonstrated the safety of prolonged administration of such doses.
ChildrenThe following recommendations apply to children between the ages of 3 and 12 years (weight range 15 kg to 40 kg). Haloperidol is not intended for children under 3 years old. Therapy should begin at the lowest dose possible (0.5 mg per day). If required, the dose should be increased by an increment of 0.5 mg at 5 to 7 day intervals until the desired therapeutic effect is obtained. (See chart below.)
The total dose may be divided, to be given b.i.d. or t.i.d.
Psychotic Disorders - 0.05 mg/kg/day to 0.15 mg/kg/day
Nonpsychotic Behavior Disorders and Tourette's Disorder - 0.05 mg/kg/day to 0.075 mg/kg/day
Severely disturbed psychotic children may require higher doses. In severely disturbed, non-psychotic children or in hyperactive children with accompanying conduct disorders, who have failed to respond to psychotherapy or medications other than antipsychotics, it should be noted that since these behaviors may be short lived, short term administration of haloperidol may suffice. There is no evidence establishing a maximum effective dosage. There is little evidence that behavior improvement is further enhanced in dosages beyond 6 mg per day.
Maintenance DosageUpon achieving a satisfactory therapeutic response, dosage should then be gradually reduced to the lowest effective maintenance level.
Switchover ProcedureThe oral form should supplant the injectable as soon as practicable. In the absence of bioavailability studies establishing bioequivalence between these two dosage forms the following guidelines for dosage are suggested. For an initial approximation of the total daily dose required, the parenteral dose administered in the preceding 24 hours may be used. Since this dose is only an initial estimate, it is recommended that careful monitoring of clinical signs and symptoms, including clinical efficacy, sedation, and adverse effects, be carried out periodically for the first several days following the initiation of switchover. In this way, dosage adjustments, either upward or downward, can be quickly accomplished. Depending on the patient’s clinical status, the first oral dose should be given within 12 to 24 hours following the last parenteral dose.
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