Tetracycline
Tetracycline is an antibiotic for selected infections caused by susceptible bacteria and some cases of acne. It does not treat viral illness.
Key points
- Diagnosis, resistance and local antibiotic guidance determine whether tetracycline is appropriate.
- Pregnancy, tooth and bone development, swallowing instructions and interactions with minerals require review.
- Severe headache with visual change, painful swallowing or a blistering rash needs urgent assessment.
Select a listed product and pack to order online. Supply depends on stock and destination rules; ask your doctor or pharmacist whether it suits you.
How it works
Tetracycline binds to bacterial ribosomes and blocks protein production, limiting growth of susceptible bacteria.
Important safety checks
Pregnancy, kidney or liver disease, oesophageal problems and other medicines require review. Take with adequate water and follow instructions about remaining upright. Antacids, iron, calcium, magnesium and dairy can reduce absorption. Retinoids can add to intracranial-pressure risk.
When to seek urgent care
Seek urgent help for severe headache with blurred or double vision, severe pain or difficulty swallowing, facial swelling, breathing difficulty, a painful blistering rash, yellow skin or eyes, or severe persistent or bloody diarrhoea.
Further reading
What is tetracycline used for?
Tetracycline is an antibiotic used for some infections caused by susceptible bacteria and some cases of acne. It does not treat viral illness.
How does tetracycline work?
Tetracycline binds to bacterial ribosomes and blocks protein production, which limits the growth of susceptible bacteria.
Which tetracycline product can I order on SGMeds?
The tetracycline product on SGMeds is Sumycin, and its page gives the strengths and pack sizes.
What are the side effects of tetracycline?
Common side effects include nausea and diarrhoea, and a sore, swollen tongue (glossitis) and difficulty swallowing can also occur. Serious effects such as liver or pancreatic problems need immediate medical attention.
Can tetracycline be taken with other medicines?
Antacids, iron, calcium, magnesium and dairy can reduce how much tetracycline you absorb, and oral retinoids can interact with it. Check with your doctor or pharmacist before taking tetracycline with anything else.
Who should not take tetracycline?
It is not suitable if you are allergic to tetracyclines, and it should not be used during pregnancy or while breastfeeding.
What brand names is tetracycline sold under?
In other countries, tetracycline is also sold as Achromycin. Brand names vary between countries, so compare products by their active ingredient.
How much does tetracycline cost in Singapore?
The product on this page shows a price for each strength and pack size in Singapore dollars, converted from US dollars, so the exchange rate can change the final amount. Larger packs usually cost less per tablet.
Payment and prices →Do I need a prescription for tetracycline in Singapore?
No. SGMeds does not ask for a prescription to order tetracycline: we place the order with our pharmacy partner, which prepares it and arranges delivery on your behalf.
Ordering without a prescription →Can I buy tetracycline online in Singapore?
Yes, here on SGMeds: choose the product, strength and pack, then check out. Parcels go to Singapore and Malaysia by Express shipping (tracked, up to 1 week) or Regular shipping (up to 3 weeks).
How ordering works →