Antibiotics
Antibiotics treat susceptible bacterial infections. They do not treat colds, influenza or other viral infections, and choosing the wrong antibiotic can delay care and contribute to antimicrobial resistance.
Medicines in the Antibiotics category

Tinidazole Tablets
500mg
Tinidazole 500mg tablets, used for giardiasis, trichomoniasis and anaerobic bacterial infection. It breaks DNA strands in susceptible organisms.

Vibramycin
100mg
Doxycycline 100mg capsules and tablets, used for acne vulgaris, chlamydia, Lyme disease and respiratory tract infection. A broad-spectrum tetracycline.

Terramycin
250mg
Oxytetracycline 250mg film-coated tablets, used for acne vulgaris and respiratory tract infection. A broad-spectrum tetracycline taken by mouth.

Rifampin Tablets
150 · 300 · 450 · 600mg
Rifampicin tablets in four strengths from 150mg to 600mg, used for tuberculosis and meningococcal carriage. It blocks bacterial RNA polymerase.

Zithromax Dispersible
100mg
Zithromax Dispersible is azithromycin 100mg in a tablet that disperses in water, for bacterial infection. It binds the 50S ribosomal subunit.

Ornidazole Tablets
500mg
Ornidazole 500mg tablets, used for trichomoniasis, amoebiasis and giardiasis. A nitroimidazole that disrupts DNA synthesis in protozoa.

Chloromycetin
250 · 500mg
Chloramphenicol 250mg and 500mg hard capsules, used for bacterial infection and typhoid fever. It binds the 50S ribosomal subunit in bacteria.

Trecator-SC
250mg
Ethionamide 250mg film-coated tablets, used in the management of tuberculosis. A thioamide that blocks peptide synthesis in mycobacteria.

Furadantin
50 · 100mg
Nitrofurantoin 50mg and 100mg tablets, used for cystitis and urinary tract infection. Bacterial flavoproteins reduce it to reactive intermediates.
Key points
- Antibiotic choice depends on the likely bacteria, infection site, severity, allergies, kidney or liver function and local resistance patterns.
- Penicillins, cephalosporins, macrolides, fluoroquinolones and urinary antibiotics differ in coverage, interactions and important adverse effects.
- Take an antibiotic exactly as prescribed; do not share it, save leftovers or change the treatment duration without clinical advice.
Select a listed product and pack to order online. Product information is not a diagnosis or recommendation. Ask your doctor or pharmacist whether it suits you.
How the antibiotic groups differ
Penicillins such as amoxicillin and cephalosporins such as cephalexin cover different groups of bacteria. Macrolides may be used for selected respiratory or other infections. Fluoroquinolones such as ciprofloxacin and ofloxacin have specific uses and safety restrictions. Nitrofurantoin concentrates in urine and is used for selected lower urinary infections, not every urinary or kidney infection.
What antibiotics are used for
This category includes medicines used for diagnosed or strongly suspected bacterial infection, urinary tract infection, some respiratory tract infections and selected cases of acne vulgaris.
Important safety checks
Tell the prescriber about previous antibiotic allergy, pregnancy, kidney or liver problems, heart-rhythm conditions and all current medicines. Tests or cultures may change treatment. New or persistent diarrhoea during or after antibiotics needs medical advice.
When to seek urgent care
Get urgent help for breathing difficulty, facial or throat swelling, fainting, a severe blistering rash, confusion, severe weakness or rapidly worsening infection. High fever with breathing difficulty, severe pain or signs of sepsis needs immediate assessment.
Further reading
FAQ
Which antibiotics can I order on SGMeds?
There are 45 antibiotics on SGMeds, containing 36 different active ingredients such as amoxicillin, clavulanic acid and azithromycin. They include Augmentin and Amoxil, and the full list is on this page.
Which antibiotics are used for urinary tract infections?
Antibiotics for urinary tract infections on SGMeds include Macrobid (nitrofurantoin), Furadantin (nitrofurantoin), Noroxin (norfloxacin) and Cipro (ciprofloxacin). Which one is right depends on the infection, so ask a doctor or pharmacist.
Which conditions are these antibiotics for?
The antibiotics listed here are used for bacterial infections, urinary tract infections, respiratory tract infections, common acne (acne vulgaris) and community-acquired pneumonia, though not every medicine is used for all of them.
In what forms are antibiotics sold?
Most are tablets, and there are also capsules and eye drops. Each product page lists the medicine's form and strengths.
What should I compare between these antibiotics?
Compare the active ingredient first: products with matching active ingredients contain the same medicine. Then compare strength, form and price per unit. Each product page sets out what the medicine is used for, its side effects and its interactions. Check with a doctor or pharmacist first if you take other medicines, are pregnant or have a long-term condition.
Do I get brand-name or generic antibiotics?
Generics. Even when a product is listed under a brand name, you receive a generic or branded generic with the same active ingredients at the strength you choose, not the original brand's pack. Brand names such as Zithromax and Cipro are there so you can find the medicine. The manufacturer varies with stock.
What you will receive →How much do antibiotics cost in Singapore?
Every strength and pack size is priced on its product page, shown in Singapore dollars. The prices are converted from US dollars, so the exchange rate can change the final amount. Larger packs usually cost less per unit.
Payment and prices →Do I need a prescription for antibiotics in Singapore?
No. SGMeds does not ask for a prescription when you order antibiotics. We place the order with our pharmacy partner, which prepares it and arranges delivery on your behalf.
Ordering without a prescription →Can I order antibiotics online in Singapore?
Yes. Add the strength and pack you want to your cart and check out. Delivery to Singapore takes up to 1 week by tracked Express shipping, or up to 3 weeks by Regular shipping.
How ordering works →Last updated
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