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Questions & Answers
Side Effects & Adverse Reactions
BEFORE THERAPY WITH CEFADROXIL MONOHYDRATE IS INSTITUTED, CAREFUL INQUIRY SHOULD BE MADE TO DETERMINE WHETHER THE PATIENT HAS HAD PREVIOUS HYPERSENSITIVITY REACTIONS TO CEFADROXIL, CEPHALOSPORINS, PENICILLINS, OR OTHER DRUGS. IF THIS PRODUCT IS TO BE GIVEN TO PENICILLIN-SENSITIVE PATIENTS, CAUTION SHOULD BE EXERCISED BECAUSE CROSS-SENSITIVITY AMONG BETA-LACTAM ANTIBIOTICS HAS BEEN CLEARLY DOCUMENTED AND MAY OCCUR IN UP TO 10% OF PATIENTS WITH A HISTORY OF PENICILLIN ALLERGY.
IF AN ALLERGIC REACTION TO CEFADROXIL MONOHYDRATE OCCURS, DISCONTINUE THE DRUG. SERIOUS ACUTE HYPERSENSITIVITY REACTIONS MAY REQUIRE TREATMENT WITH EPINEPHRINE AND OTHER EMERGENCY MEASURES, INCLUDING OXYGEN, INTRAVENOUS FLUIDS, INTRAVENOUS ANTIHISTAMINES, CORTICOSTEROIDS, PRESSOR AMINES, AND AIRWAY MANAGEMENT, AS CLINICALLY INDICATED.
Clostridium difficile associated diarrhea (CDAD) has been reported with use of nearly all antibacterial agents, including cefadroxil monohydrate, and may range in severity from mild diarrhea to fatal colitis. Treatment with antibacterial agents alters the normal flora of the colon leading to overgrowth of C. difficile.
C. difficile produces toxins A and B which contribute to the development of CDAD. Hypertoxin producing strains of C. difficile cause increased morbidity and mortality, as these infections can be refractory to antimicrobial therapy and may require colectomy. CDAD must be considered in all patients who present with diarrhea following antibiotic use. Careful medical history is necessary since CDAD has been reported to occur over two months after the administration of antibacterial agents.
If CDAD is suspected or confirmed, ongoing antibiotic use not directed against C. difficile may need to be discontinued. Appropriate fluid and electrolyte management, protein supplementation, antibiotic treatment of C. difficile, and surgical evaluation should be instituted as clinically indicated.
Legal Issues
There is currently no legal information available for this drug.
FDA Safety Alerts
There are currently no FDA safety alerts available for this drug.
Manufacturer Warnings
There is currently no manufacturer warning information available for this drug.
FDA Labeling Changes
There are currently no FDA labeling changes available for this drug.
Uses
Cefadroxil for oral suspension USP is indicated for the treatment of patients with infection caused by susceptible strains of the designated organisms in the following diseases:
Urinary tract infections caused by E. coli, P. mirabilis, and Klebsiella species.
Skin and skin structure infections caused by staphylococci and/or streptococci.
Pharyngitis and/or tonsillitis caused by Streptococcus pyogenes (Group A beta-hemolytic streptococci).
Note: Only penicillin by the intramuscular route of administration has been shown to be effective in the prophylaxis of rheumatic fever. Cefadroxil monohydrate is generally effective in the eradication of streptococci from the oropharynx. However, data establishing the efficacy of cefadroxil monohydrate for the prophylaxis of subsequent rheumatic fever are not available.
Note: Culture and susceptibility tests should be initiated prior to and during therapy. Renal function studies should be performed when indicated.
To reduce the development of drug-resistant bacteria and maintain the effectiveness of cefadroxil for oral suspension and other antibacterial drugs, cefadroxil for oral suspension should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy. In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy.
History
There is currently no drug history available for this drug.
Other Information
Cefadroxil monohydrate is a semisynthetic cephalosporin antibiotic intended for oral administration. It is a white to yellowish-white crystalline powder. It is soluble in water and it is acid-stable. It is chemically designated as 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-[[amino(4-hydroxyphenyl)acetyl]amino]-3-methyl-8-oxo-, monohydrate, [6R-[6 α (,7β ((R*)]]-. It has the formula C16H17N3O5S•H2O and the molecular weight of 381.40. It has the following structural formula:
Cefadroxil for oral suspension USP contains cefadroxil monohydrate USP. After reconstitution, each 5 mL contains Cefadroxil monohydrate USP equivalent to 250 mg or 500 mg of cefadroxil. In addition, cefadroxil for oral suspension USP contains the following inactive ingredients: FD&C Yellow No. 6, orange powder flavor, pineapple powder flavor, polysorbate 80, sodium benzoate, sugar (sucrose), and xanthan gum.
Cefadroxil for oral suspension, USP is off-white yellow powder, forming an orange colored suspension on constitution.
Sources
Target Antifungal Manufacturers
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Target Corporation
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Target Antifungal | West-ward Pharmaceutical Corp
Cefadroxil for oral suspension is acid-stable and may be administered orally without regard to meals. Administration with food may be helpful in diminishing potential gastrointestinal complaints occasionally associated with oral cephalosporin therapy.
AdultsUrinary Tract Infections
For uncomplicated lower urinary tract infections (i.e., cystitis) the usual dosage is 1 or 2 g per day in a single (q.d.) or divided doses (b.i.d.).
For all other urinary tract infections the usual dosage is 2 g per day in divided doses (b.i.d.).
Skin and Skin Structure Infections
For skin and skin structure infections the usual dosage is 1 g per day in single (q.d.) or divided doses (b.i.d.).
Pharyngitis and Tonsillitis
Treatment of group A beta-hemolytic streptococcal pharyngitis and tonsillitis— 1 g per day in single (q.d.) or divided doses (b.i.d.) for 10 days.
ChildrenFor urinary tract infections, the recommended daily dosage for children is 30 mg/kg/day in divided doses every 12 hours. For pharyngitis, tonsillitis, and impetigo, the recommended daily dosage for children is 30 mg/kg/day in a single dose or in equally divided doses every 12 hours. For other skin and skin structure infections, the recommended daily dosage is 30 mg/kg/day in equally divided doses every 12 hours. In the treatment of beta-hemolytic streptococcal infections, a therapeutic dosage of cefadroxil for oral suspension should be administered for at least 10 days.
See chart for total daily dosage for children.
DAILY DOSAGE OF CEFADROXIL FOR ORAL SUSPENSION
Child's Weightlbs
kg
250 mg/5 mL
500 mg/5 mL
10
4.5
½ tsp
-
20
9.1
1 tsp
-
30
13.6
1½ tsp
-
40
18.2
2 tsp
1 tsp
50
22.7
2½ tsp
1¼ tsp
60
27.3
3 tsp
1½ tsp
70 & Above
31.8+
--
2 tsp
Renal ImpairmentIn patients with renal impairment, the dosage of cefadroxil monohydrate should be adjusted according to creatinine clearance rates to prevent drug accumulation. The following schedule is suggested. In adults, the initial dose is 1000 mg of cefadroxil monohydrate and the maintenance dose (based on the creatinine clearance rate [mL/min/1.73 m2]) is 500 mg at the time intervals listed below.
Creatinine Clearances Dosage Interval 0 to 10 mL/min 36 hours 10 to 25 mL/min 24 hours 25 to 50 mL/min 12 hoursPatients with creatinine clearance rates over 50 mL/min may be treated as if they were patients having normal renal function.
Reconstitution Directions for Oral Suspension Bottle Size
Reconstitution Directions
100 mL
Suspend in a total of 67 mL of water.
Method: Tap bottle lightly to loosen powder.
Add 67 mL of water in two portions.
Shake well after each addition. 75 mL
Suspend in a total of 51 mL of water
Method: Tap bottle lightly to loosen powder.
Add 51 mL of water in two portions.
Shake well after each addition. 50 mL
Suspend in a total of 34 mL of water
Method: Tap bottle lightly to loosen powder.
Add 34 mL of water in two portions.
Shake well after each addition. After reconstitution, store in refrigerator. Shake well before using.
Keep container tightly closed. Discard unused portion after 14 days.
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