Keflex
Keflex tablets contain cephalexin, a cephalosporin antibiotic for bacterial infections of the throat, chest, skin and urinary tract, in 250mg and 500mg strengths.
All strengths and pack prices
| Strength | Pack | Price | Per tablet |
|---|---|---|---|
| 250mg | 30 tablets | $32.98 | $1.11 |
| 250mg | 60 tablets | $60.60 | $1.01 |
| 250mg | 90 tablets | $84.60 | $0.94 |
| 250mg | 120 tablets | $105.60 | $0.88 |
| 250mg | 180 tablets | $150.98 | $0.84 |
| 250mg | 360 tablets | $283.98 | $0.79 |
| 500mg | 30 tablets | $51.60 | $1.72 |
| 500mg | 60 tablets | $97.98 | $1.64 |
| 500mg | 90 tablets | $139.98 | $1.56 |
| 500mg | 120 tablets | $178.80 | $1.49 |
| 500mg | 180 tablets | $253.80 | $1.41 |
| 500mg | 360 tablets | $489.60 | $1.36 |
- Category
- Antibiotics
- Active ingredient
- Cephalexin
- Route
- Oral
- Form
- Capsule, Tablet
- Strengths
- 250/500mg
You will receive a quality generic equivalent, depending on stock.
Shipped in a discreet, unmarked envelope.
Details
- Conditions
- Bacterial infections
- Therapeutic Class
- Cephalosporin
- Pharmacological Class
- Antibiotic
- Minor Side Effects
- Nausea, diarrhoea
- Moderate Side Effects
- Stomach cramps
- Dosage Forms
- Capsule, Tablet
- Administration Route
- Oral
- Originator
- Eli Lilly
- Onset Time
- 1–2 hours
- Duration
- 6–12 hours
- Storage Instructions
- Store at room temperature in a dry place.
- Drug Interactions
- Probenecid
What you will receive
Keflex is the originator brand name, made by Eli Lilly. We use it to identify the medicine; the pack you receive is a generic equivalent, not the original Keflex.
- The same active ingredient (Cephalexin) at the same strength.
- The exact brand supplied depends on what is in stock when your order ships.
FAQ
Which Keflex strengths and pack sizes can I order?
Keflex comes as tablets in 250mg and 500mg, in packs of 30, 60, 90, 120, 180 or 360. The pack contains generic cephalexin, not the original Keflex. Larger packs cost less per tablet.
How is Keflex delivered to Hong Kong?
Keflex orders ship by tracked courier, which takes 5 to 9 business days and includes online tracking. If your parcel does not arrive within that window, or turns up damaged, we send it again free, or refund the order if that is not possible.
What is another name for cephalexin?
Keflex and Keftab are brand names of cephalexin, which is also sold as Ceporex, Keforal and Sporidex. Here, cephalexin can be bought online as generic Keflex, and also as cephalexin tablets. These are generics, not the original brand.
Is Keflex the same as cephalexin?
Yes. Keflex is the brand name the antibiotic is known by, and the tablets sold here contain generic cephalexin. It is the same active ingredient under a different name, so the choice comes down to which pack and strength you want.
Does Keflex affect the contraceptive pill?
Keflex does not weaken hormonal contraception. Only a stomach upset changes that: heavy vomiting or diarrhoea can mean a pill never got absorbed, so treat it as a missed pill.
What should I do if I forget a dose of Keflex?
Take the missed tablet as soon as you remember. When the next dose is almost due, wait for it and carry on as normal; two tablets at once is not a way to catch up.
Is Keflex a penicillin?
No. Cephalexin is a cephalosporin, a family of antibiotics of its own, though it is chemically related to penicillins. It is used for the same everyday bacterial infections, such as chest, skin, throat and urine infections.
Can Keflex treat a cold or flu?
No. Colds and flu come from viruses, and cephalexin acts only on bacteria. A course for a viral illness brings no relief and makes a resistant infection more likely down the line.
About Keflex
What Keflex tablets are for
Keflex is the brand name cephalexin is best known by, and the tablets sold here contain generic cephalexin in 250mg and 500mg strengths. It belongs to the cephalosporin antibiotics. Cephalexin kills bacteria by breaking down the wall that holds a bacterial cell together, which stops the infection spreading. Throat and chest infections, skin and soft-tissue infections, urinary tract infections and some ear infections are the usual reasons it is used. Colds, flu and other viral illnesses are untouched by it.
How to take cephalexin tablets
On a 12-hourly schedule that means one tablet at breakfast and one at supper; a 6-hourly schedule means four across the day. Courses commonly run 7 to 14 days. Food is optional, though a bite to eat takes the edge off queasiness. Improvement usually shows in the first few days, but the last tablets are what stop a partly cleared infection coming back stronger.
Side effects to expect
Stomach trouble is the usual complaint: nausea, loose stools, heartburn, a sore belly. Headache, dizziness, tiredness, joint pain and itching around the genitals or back passage can also occur, and most of these settle as the course continues. Diarrhoea that is watery or bloody, with cramps and fever, can turn up weeks after the last tablet and needs urgent treatment, as do hives, swollen lips, face or throat, and any difficulty breathing or swallowing. A fever, sore throat or chills that come back mid-course mean the infection is not being controlled.
250mg or 500mg?
Both tablets hold the same medicine; the strength sets how much you take at a time. A 250mg tablet suits a schedule that splits the daily dose into smaller amounts, while 500mg keeps the tablet count down when more is needed at once. Packs come in sizes from 30 to 360 tablets, which covers a long course or a repeat.
Keflex or the other cephalexin listing
A second cephalexin product sits alongside this one: Cephalexin 500mg tablets, one strength only, sold under its own brand name. Keflex is the name most buyers type in, and it adds the 250mg tablet to the choice. The active ingredient is identical in both; what changes is the name on the pack, the strengths on offer and the pack sizes. The cephalexin ingredient page sets out the two listings side by side.
Sources
- Cephalexin: MedlinePlus Drug Information — National Library of Medicine
- Antibiotics - NHS — NHS