Antibiotic (Penicillin combination)
Brand of Amoxicillin; Flucloxacillin
Last reviewed June 2026
Who is this for?
This is a combination antibiotic containing two types of penicillin — amoxicillin and flucloxacillin — that work together to kill a wider range of bacteria than either one alone. You may know it by the brand name Flumox in Nigeria.
Inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins and preventing peptidoglycan cross-linking; flucloxacillin provides enhanced beta-lactamase resistance against staphylococcal strains that produce penicillinase enzymes.
Prescription Required
You need a doctor's prescription to buy this drug.
Explore this drug
Adults usually take 1 capsule of Flumox 500 mg three times a day (morning, afternoon, and night). It works best when taken on an empty stomach — about 1 hour before food or 2 hours after eating. Swallow the capsule whole with a full glass of water. Always complete the full course your doctor or pharmacist prescribed, even if you feel better.
If you miss a dose, take it as soon as you remember. But if it is almost time for your next dose, skip the missed one and continue your normal schedule. Do not take a double dose to make up for the one you missed.
Important for antibiotics
Always complete the full course even if you feel better. Stopping early can cause the infection to return and become drug-resistant.
Always complete the full course of antibiotics even if you feel better after a few days — stopping early helps bacteria become resistant and the infection may return stronger. Buy only from a registered pharmacy and check the expiry date — do not buy from roadside vendors or open markets. Do not share your Flumox with someone else even if they have similar symptoms — wrong use of antibiotics is a serious problem in Nigeria.
Avoid taking this drug at the same time as methotrexate (used for arthritis or cancer) as it can increase side effects. If you are on blood-thinning medicine like warfarin, this antibiotic can increase bleeding risk — let your doctor know. Oral contraceptives (birth control pills) may become less effective while taking this antibiotic, so use additional protection.
Check your specific combination
Is it safe to take Amoxicillin; with your other drugs?
Consult your doctor before taking this drug if you are pregnant or breastfeeding — it may be used if your doctor decides the benefit outweighs the risk, but do not self-medicate.
Store in a cool, dry place away from direct sunlight and heat — Nigerian weather can be very hot, so avoid leaving it in your car or near a window. If you reconstituted the suspension (mixed the powder with water), keep it in the refrigerator and use it within 7-14 days. Always keep out of reach of children.
For information only — not medical advice. Always talk to a doctor or pharmacist before changing your medication.
Names this drug is sold under — especially in Nigerian and West African pharmacies
Counterfeit Drug Warning
Fake drugs are a serious problem in Nigeria. Always buy from a registered pharmacy. If the packaging looks different from what is described above, do not use it.
Genuine packaging for Flumox 250 mg Powder for Oral Suspension
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NAFDAC Number
A4-6594
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