Keftab: Uses, Dosage, Safety, and Prescription Information

Keftab is a prescription brand of cephalexin, a cephalosporin antibiotic used for selected bacterial infections. It interferes with bacterial cell-wall formation. A clinician should determine whether the infection is bacterial, whether the organism is likely to be susceptible, and whether cephalexin is appropriate for the patient’s allergy and kidney history. Keftab does not treat viral illnesses such as common colds, influenza, or COVID-19.

A Keftab price can vary by strength, form, pharmacy, insurance coverage, and generic availability. Patients may buy Keftab only with a valid prescription through a licensed pharmacy. A Keftab price should not determine whether an antibiotic is needed or lead to use of a leftover or shared course.

Indications

Cephalexin products may be used for selected respiratory tract, ear, skin and skin-structure, bone, and genitourinary infections when susceptible bacteria are involved. The diagnosis may depend on examination, culture results, local resistance patterns, and severity. A sore throat, cough, urinary discomfort, or red skin area can have causes that need different treatment. Seek prompt assessment for high fever, rapidly spreading redness, severe pain, breathing difficulty, or signs of dehydration.

Use antibiotics only for proven or strongly suspected bacterial infection. Take the medicine for the entire prescribed duration unless the prescriber changes the plan. Stopping early, skipping repeated doses, sharing tablets, or saving capsules for a later illness can leave infection undertreated and contribute to resistance. Patients who have been assessed can buy Keftab from a regulated pharmacy; the Keftab price is secondary to receiving the exact prescribed product.

Dosage

Dose, interval, and treatment length vary with the infection, age, weight in children, kidney function, culture results, and clinical response. Oral cephalexin commonly uses 250 mg or 500 mg strengths, and adult schedules can differ by indication. For adults and patients at least 15 years old, labeling commonly describes 250 mg every 6 hours or 500 mg every 12 hours for seven to fourteen days; more serious infection may require a different clinician-directed regimen. Renal impairment can require dose adjustment.

Patients with a valid prescription can buy Keftab 250 mg when that strength matches the prescribed regimen. Patients with a valid prescription can buy Keftab 500 mg when that strength matches the prescribed regimen. Take the medicine with water, with or without food; food may help if stomach upset occurs. If a dispersible formulation is prescribed, follow the pharmacy’s specific preparation directions and do not chew or swallow it dry. For a missed dose, take it when remembered unless close to the next dose; do not double doses.

Before patients request a refill, they should have explicit prescriber authorization. Do not assume a previous dose remains suitable for a new infection. Keep the product in its original container and follow the dispensing label for storage and any liquid-form discard date.

Safety Information

Do not use Keftab with a known serious hypersensitivity to cephalexin or other cephalosporins. Tell the prescriber about any reaction to penicillins, cephalosporins, or beta-lactam antibiotics, and about kidney disease, a history of colitis, diabetes, pregnancy, breastfeeding, and all current medicines. Common effects include nausea, vomiting, diarrhea, abdominal discomfort, rash, or vaginal symptoms.

Seek emergency care for hives, wheezing, swelling of the face, lips, tongue, or throat, trouble breathing, fainting, or a severe blistering or peeling rash. Watery or bloody diarrhea, severe abdominal pain, or fever during or after treatment may indicate Clostridioides difficile-associated diarrhea and requires prompt medical advice. Seizures can occur, especially if recommended doses are not reduced in renal impairment. Contact the prescriber if symptoms worsen or do not improve as expected.

Interactions

Probenecid can increase cephalexin exposure. Cephalexin may affect some urine glucose tests and can affect coagulation monitoring in certain patients, particularly with anticoagulants such as warfarin. Give the prescriber and pharmacist a complete list of prescription medicines, nonprescription products, vitamins, and supplements. A pharmacist should check the list before patients buy Keftab. The Keftab price is less important than allergy review, interaction screening, kidney-appropriate dosing, and follow-up.

Contact the prescriber if fever, pain, redness, drainage, urinary symptoms, or other infection symptoms worsen instead of improving. New symptoms may mean that the infection requires re-evaluation, culture testing, drainage, another medicine, or urgent care. Do not add another antibiotic, use a family member’s prescription, or take a second dose to compensate for a missed tablet. The pharmacy label and the clinician’s instructions take priority over general information on this page. Store medicine safely.

Medical disclaimer: This content is informational and does not replace advice from a licensed healthcare professional. It is not a substitute for diagnosis, emergency care, or individualized prescribing. Patients should follow their prescriber’s directions and consult a qualified clinician or pharmacist about questions concerning Keftab.