Keflex
Cephalexin 250mg and 500mg hard capsules, used for bacterial infection. A first-generation cephalosporin that binds penicillin-binding proteins.
- Category
- Antibiotics
- Active ingredient
- Cephalexin
- Route
- Oral use
- Form
- Capsule, hard
- Strengths
- 250 · 500mg
You will receive a quality generic equivalent, depending on stock.
No prescription needed: we place your order for Keflex on your behalf.
- Condition
- Bacterial Infection
- Alternative names
- Keforal
- Therapeutic class
- First-Generation Cephalosporin Antibiotic
- Pharmacological class
- Cephalosporin Antibiotic
- Contraindications
- hypersensitivity to cephalosporins
- Minor side effects
- diarrhoea; nausea
- Moderate side effects
- rash; vaginal discharge
- Dosage forms
- Capsule, hard
- Administration route
- Oral use
- Originator
- Eli Lilly
- Onset time
- 1 hour
- Duration
- 6–8 hours
- Storage instructions
- Store below 25°C in a dry place.
- Drug interactions
- probenecid
- Age restrictions
- Commonly used in paediatric patients; follow clinical advice.
Precautions and warnings
inform your doctor before any planned surgery; complete the full course as prescribed
Serious side effects
anaphylaxis, requires immediate medical attention; severe skin reactions, requires immediate medical attention
Patient summary
Cephalexin 250mg and 500mg hard capsules, used for bacterial infection. A first-generation cephalosporin that binds penicillin-binding proteins.
Mechanism of action
Cephalexin, a first-generation cephalosporin, inhibits the synthesis of the bacterial cell wall by binding to penicillin-binding proteins. This leads to the inhibition of peptidoglycan synthesis, resulting in bacterial cell death.
Pregnancy and breastfeeding
Pregnancy: Suitability during pregnancy depends on the specific medicine and individual circumstances. Confirm with a qualified clinician or pharmacist before use. Breastfeeding: Confirm breastfeeding suitability with a qualified clinician or pharmacist before use.
Keflex is an established Eli Lilly product used to treat bacterial infection. The active ingredient is cephalexin, which is also sold under the brand name Keforal. Patients access the medication in tablet form in strengths ranging from 250mg to 500mg for their specific health requirements.
Buying Keflex online
Generic cephalexin, largely produced in India, offers a cost effective alternative to the original brand for expats or those residing far from a reliable medical facility. This medication is best used under the guidance of a doctor.
Is the Keflex on SGMeds a generic?
Yes. SGMeds ships a generic with the same active ingredient (cephalexin) at the strength you choose, not the original Keflex made by Eli Lilly. We use the brand name so you can find the medicine, and the generic's manufacturer varies with stock.
How is Keflex priced?
Keflex comes in 250 and 500mg strengths, in packs of 30 to 360 tablets. Each option's price is shown on this page in Singapore dollars, converted from US dollars, so the exchange rate can change the final amount. Larger packs work out cheaper per tablet.
Payment and prices →Which other brands contain cephalexin?
In other countries, cephalexin is also sold as Keforal. SGMeds also lists Keftab with the same active ingredient.
What is Keflex used for?
Keflex is used for bacterial infections.
What side effects does Keflex have?
The most common side effects of cephalexin are diarrhoea and nausea. Less common ones are rash and vaginal discharge. Serious side effects include a severe allergic reaction (anaphylaxis) and severe skin reactions. Get medical help straight away if you notice one of these serious effects.
Which medicines interact with Keflex?
Cephalexin can interact with a gout medicine (probenecid). Before you start Keflex, tell your doctor or pharmacist about any medicines, supplements or herbal remedies you take.
Can I order Keflex without a prescription?
Yes. SGMeds does not ask for a prescription to order Keflex: we place the order with our pharmacy partner, which prepares it and arranges delivery on your behalf.
Ordering without a prescription →Where can I buy Keflex in Singapore?
You can order Keflex here on SGMeds: choose the strength and pack, then check out. We deliver to Singapore and Malaysia. Express shipping is tracked and takes up to 1 week, and Regular shipping takes up to 3 weeks.
How ordering works →What you will receive
Keflex is the originator brand name, made by Eli Lilly. We use it here to identify the medicine only; we are not affiliated with Eli Lilly and do not ship the original Keflex.
- You receive a generic equivalent: the same active ingredient (Cephalexin) at the same dose, mostly recognised Indian branded generics from vetted manufacturers.
- The exact brand supplied depends on what is in stock at the dispatching warehouse.
- A regulated generic matches the original ingredient for ingredient by legal standard.