Zefotax
Zefotax Uses, Dosage, Side Effects, Food Interaction and all others data.
Zefotax is a broad spectrum bactericidal 3rd generation parenteral cephalosporin antibiotic. Zefotax is exceptionally active against gram-negative organisms sensitive or resistant to first or second generation cephalosporins. It is similar to other cephalosporins in activity against gram-positive bacteria.
Zefotax is a third generation intravenous cephalosporin antibiotic. It has broad spectrum activity against Gram positive and Gram negative bacteria. It does not have activity against Pseudomonas aeruginosa. Zefotax works by inhibiting bacterial cell wall biosynthesis. A positive feature of cefotaxime is that it display a resistance to penicillinases and is useful to treat infections that are resistant to penicillin derivatives.
Trade Name | Zefotax |
Availability | Prescription only |
Generic | Cefotaxime |
Cefotaxime Other Names | Cefotaxim, Cefotaxima, Céfotaxime, Cefotaxime, Cefotaximum, Cephotaxime |
Related Drugs | amoxicillin, doxycycline, ciprofloxacin, cephalexin, metronidazole, azithromycin, clindamycin, ceftriaxone, levofloxacin, Augmentin |
Type | |
Formula | C16H17N5O7S2 |
Weight | Average: 455.465 Monoisotopic: 455.056939303 |
Groups | Approved |
Therapeutic Class | Third generation Cephalosporins |
Manufacturer | |
Available Country | Philippines |
Last Updated: | September 19, 2023 at 7:00 am |
![Zefotax Zefotax](https://www.medicinesfaq.com/media/png/zefotax.png)
Uses
• Cefotime is used for the treatment of patients with serious infections caused by susceptible strains of the designated microorganisms in the diseases listed below.
• Lower respiratory tract infections, including pneumonia, acute or chronic bronchitis, bronchiectasis, lung abscess and post-operative chest infections.
- Urinary tract infections, including acute and chronic pyelonephritis, cystitis and asymptomatic bacteriuria.
- Obstetric & gynecological infections, including pelvic inflammatory disease.
- Septicemia / Bacteremia
- Skin and soft tissue infections, such as - cellulitis, wound infections.
- Intra-abdominal infections including peritonitis.
- Bone and joint infections, e.g. osteomyelitis, septic arthritis.
- Central nervous system infections, e.g. meningitis.
- Uncomplicated gonorrhea, particularly when penicillin has failed or is unsuitable.
- Surgical prophylaxis: The administration of Zefotax prophylactically may reduce the incidence of certain post-operative infections in patients undergoing surgical procedures that are classified as contaminated or potentially contaminated or in clean operation where infection would have serious effects.
Zefotax is also used to associated treatment for these conditions: Animal bite, Bacteremia, Bacterial Infections, Bacterial Peritonitis, Bacterial Pneumonia, Bacterial Sepsis, Bacterial Sinusitis, Bacterial Urinary Tract Infections, Bone and Joint Infections, CNS ventriculitis, Central Nervous System Infections, Community Acquired Pneumonia (CAP), Endometritis, Gonococcal arthritis, Gonorrhea, Gynaecological infection, Intra-Abdominal Infections, Lower respiratory tract infection bacterial, Lyme Neuroborreliosis, Meningitis bacterial, Pelvic Inflammatory Disease (PID), Pelvic cellulitis, Postoperative Infections, Skin and Subcutaneous Tissue Bacterial Infections
How Zefotax works
The bactericidal activity of cefotaxime results from the inhibition of cell wall synthesis via affinity for penicillin-binding proteins (PBPs). Zefotax shows high affinity for penicillin-binding proteins in the cell wall including PBP Ib and PBP III.
Dosage
Zefotax dosage
Adults:
The recommended dosage for mild to moderate infections is 1 gm every 12 hourly. However, dosage may be varied according to the severity of infection, sensitivity of causative organisms and condition of the patient. In severe infections dosage may be increased up to 12 gm daily given in 3 or 4 divided doses. For infections caused by sensitive Pseudomonas spp. daily doses of greater than 6 gm will usually be required.
Children:
The usual dosage range is 100-150 mg/kg/day in 2 to 4 divided doses. However, in very severe infections doses of up to 200 mg/kg/day may be required.
Neonates:
The recommended dosage is 50 mg/kg/day in 2 to 4 divided doses. In severe infections 150-200 mg/kg/day in divided doses have been given.
Gonorrhoea:
A single injection of 1 gm may be administered intramuscularly or intravenously.
Surgical Prophylaxis:
Immediately prior to surgery, a single dose of 1 gm is suitable for most of the procedures. For procedures longer than 4 hours a dose of 2 gm is recommended.
Renal impairment:
Because of extra-renal elimination, it is only necessary to reduce the dosage of Zefotax in severe renal failure (GFR<5 ml/min = serum creatinine approximately 751 micromol/litre). After an initial loading dose of 1 gm, daily dose should be halved without change in the frequency of dosing.
Direction for reconstitution
For reconstitution purpose add water for injection BP as per the following chart:
Route 250 mg 500 mg 1 gm
IM 2 ml 2 ml 3 ml
IV 2-5 ml 2-10 ml 4-10 ml
Intravenous infusion
Zefotax may be administered by intravenous infusion. 1-2 grams are dissolved in 40-100 ml of water for injection BP or 0.9% Sodium Chloride injection BP or 5% Dextrose injection BP. The prepared infusion should be administered over 20-60 minutes.
Intermittent IV: Add 10 ml of sterile water for inj to a vial containing 0.5 g, 1 g or 2 g to provide a soln containing approx 50 mg, 95 mg, or 180 mg per ml, respectively.
Intermittent or continuous IV infusion: Add 50 ml or 100 ml of NaCl 0.9% inj or dextrose 5% inj to an infusion bottle containing 1 g or 2 g. Alternatively, reconstituted soln may be further diluted with 50-1,000 ml of a compatible soln. IM: Add 2 ml, 3 ml or 5 ml of sterile or bacteriostatic water for inj to a vial containing 0.5 g, 1 g or 2 g to provide a soln containing approx 230 mg, 300 mg or 330 mg per ml, respectively.
Side Effects
Adverse reactions to Zefotax have occurred relatively infrequently and have generally been mild and transient. Effects reported include candidiasis, rashes, fever, transient rises in liver transaminase and/or alkaline phosphatase and diarrhoea. As with all cephalosporins, pseudomembranous colitis may rarely occur during treatment. If this occurs, the drug should be stopped and specific treatment instituted. As with other cephalosporins, changes in renal function have been rarely observed with high doses of Zefotax. Administration of high doses of cephalosporins particularly in patients with renal insufficiency may result in encephalopathy. Hypersensitivity reactions have been reported, these include skin rashes, drug fever and very rarely anaphylaxis.
Toxicity
Adverse effects following overdosage include nausea, vomiting, epigastric distress, diarrhea, and convulsions. Oral rat LD50 is over 20,000 mg/kg while intravenous rat LD50 is over 7,000 mg/kg.
Precaution
Zefotax should be prescribed with caution in patients with a history of colitis. Because high and prolonged antibiotic concentrations can occur from usual doses in patients with transient or persistent reduction of urinary output because of renal insufficiency, the total daily dosage should be reduced when Zefotax is administered to such patients. Continued dosage should be determined by degree of renal impairment, severity of infection, and susceptibility of the causative organisms.
Interaction
Increased nephrotoxicity has been reported following concomitant administration of cephalosporins and aminoglycoside antibiotics.
Food Interaction
No interactions found.Zefotax Hypertension interaction
[Moderate] Parenteral cefotaxime sodium contains approximately 51 mg (2.2 mEq) of sodium per each gram of cefotaxime activity.
The frozen solutions of cefotaxime sodium are additionally formulated with sodium citrate hydrous as a buffer.
The sodium content should be considered in patients with conditions that may require sodium restriction, such as congestive heart failure, hypertension, and fluid retention.
Zefotax Drug Interaction
Unknown: aspirin, aspirin, amoxicillin / clavulanate, amoxicillin / clavulanate, sulfamethoxazole / trimethoprim, sulfamethoxazole / trimethoprim, albuterol / ipratropium, albuterol / ipratropium, acetaminophen, acetaminophen, valproic acid, valproic acid, ascorbic acid, ascorbic acid, cholecalciferol, cholecalciferol, phytonadione, phytonadione, phytonadione, phytonadione
Zefotax Disease Interaction
Major: colitisModerate: renal dysfunction, sodium, dialysis, liver disease, seizure disorders
Elimination Route
Rapidly absorbed following intramuscular injection.
Half Life
Approximately 1 hour.
Elimination Route
Approximately 20-36% of an intravenously administered dose of 14C-cefotaxime is excreted by the kidney as unchanged cefotaxime and 15-25% as the desacetyl derivative, the major metabolite.
Pregnancy & Breastfeeding use
Zefotax is pregnancy category B drug. Although animal studies have not shown any adverse effect on the developing fetus, the safety of Zefotax in human pregnancy has not been established. So, Zefotax should not be administered during pregnancy especially during the first trimester, without carefully weighing the expected benefits against the possible risks. As Zefotax is excreted in human milk, either breast feeding or treatment of the mother should be stopped.
Contraindication
Zefotax is contraindicated in patients who have shown hypersensitivity to cefotaxime or the cephalosporin group of antibiotics.
Special Warning
Dosage in renal impairment: Because of extra-renal elimination, it is only necessary to reduce the dosage of Zefotax in severe renal failure (GFR<5 ml/min = serum creatinine approximately 751 micromol/litre). After an initial loading dose of 1 gm, daily dose should be halved without change in the frequency of dosing. In all other patients, dosage may require further adjustment according to the course of infection and the general condition of the patient.
Acute Overdose
Most cases of Zefotax Sodium overdosage have shown no over toxicity. The most frequent reactions were elevations of BUN and creatinine. Patients who receive an acute overdosage should be carefully observed and given supportive treatment.
Storage Condition
Store below 25° C, protected from light and moisture. Use reconstituted solution immediately. Reconstituted solution is stable for up to 24 h if stored between 2° to 8° C.
Innovators Monograph
You find simplified version here Zefotax
Zefotax contains Cefotaxime see full prescribing information from innovator Zefotax Monograph, Zefotax MSDS, Zefotax FDA label
FAQ
What is Zefotax used for?
Zefotax is an antibiotic used to treat a number of bacterial infections. Specifically it is used to treat joint infections, pelvic inflammatory disease, meningitis, pneumonia, urinary tract infections, sepsis, gonorrhea, and cellulitis. Zefotax is also used to prevent infection in people having certain types of surgery
How does Zefotax work?
Zefotax works by interfering with the ability of bacteria to form cell walls.
What are the common side effects of Zefotax?
Common side effects of Zefotax are include:
- injection site reactions (pain, irritation, a hard lump, or inflammation),
- rash,
- itching,
- hives,
- fever,
- nausea,
- vomiting,
- stomach pain,
- headache,
- diarrhea,
- vaginal itching or discharge, and
- colitis.
Is Zefotax safe during pregnancy?
Animal reproduction studies have failed to demonstrate a risk to the fetus and there are no adequate and well-controlled studies in pregnant women. Use is recommended only if clearly needed and the benefit outweighs the risk to the fetus.
Is Zefotax safe during breastfeeding?
Zefotax passes into human breast milk in small amounts and is usually compatible with breast feeding, but careful monitoring of the infant is recommended.
Can I drink alcohol with Zefotax?
Zefotax does not interact with alcohol, but some of its side effects are similar to the effects of alcohol.
Can I drive after taking Zefotax?
Patients should be advised not to drive or operate machinery if any such symptoms occur.
When should be taken of Zefotax?
To prevent postoperative infection in contaminated or potentially contaminated surgery, the recommended dose is a single 1 gram IV administered 30 to 90 minutes prior to start of surgery.
Where should Zefotax be injected?
Zefotax should be administered by deep intra-gluteal injection, preferably the ventrogluteal muscle. It is recommended to use a 21 gauge, 1.5″ needle with a 3cc syringe.
How is Zefotax eliminated ?
The elimination half-life of Zefotax is about one hour, with the total body clearance being approximately twice that of the renal clearance.
How long can Zefotax be used?
As a general rule Zefotax is administered for a further 3 to 4 days after improvement/regression of the symptoms. Adults and children over 12 years in general receive 1 g Zefotax every 12 hours.
Who should not take Zefotax?
You should not use Zefotax if you are allergic to Zefotax or another cephalosporin antibiotic (cefdinir, cefalexin, Keflex, Omnicef, and others).
What happen If I missed dose of Zefotax?
Use the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not use two doses at one time.If you are receiving this medicine at a clinic, call your doctor if you miss an appointment for your injection.
What happens if I overdose?
Seek emergency medical attention .Overdose symptoms may include weakness, cold feeling, pale skin, blue lips, or seizure.
Can Zefotax affects my kidney?
None of the patients treated with cefotaxime alone showed any signs of renal damage.
Is Zefotax safe in renal failure?
Zefotax can be safely used to treat patients with infections in the presence of renal dysfunction.
Does Zefotax affect the liver?
Zefotax is a second-generation cephalosporin known to very rarely cause drug-induced liver injury.