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Doxycycline

Doxycycline is a tetracycline antibiotic for selected infections caused by susceptible bacteria. It also has specific uses in acne and prevention of certain infections. Listed uses include Chlamydia trachomatis infection and respiratory tract infections.

Vibramycin

Acne Vulgaris, Chlamydia Trachomatis, Lyme Disease

100mg

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

From$1.11/ tabletView

Key points

  • Doxycycline does not treat viral illness, and the indication determines treatment length and follow-up.
  • Pregnancy, swallowing instructions, sun sensitivity and interactions with minerals or isotretinoin 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

Doxycycline binds to bacterial ribosomes and blocks protein production, limiting growth of susceptible organisms.

Important safety checks

Pregnancy, oesophageal disease, liver problems and other medicines require review. Take with adequate water and follow instructions about remaining upright. Antacids, iron, calcium and magnesium can reduce absorption. Isotretinoin 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 doxycycline used for?

Doxycycline is a tetracycline antibiotic for some infections caused by susceptible bacteria, including Chlamydia trachomatis infection and respiratory tract infections. It is also used for acne and to prevent certain infections. It does not treat viral illness.

How does doxycycline work?

Doxycycline blocks the production of proteins inside bacteria, which stops susceptible organisms from growing. It is a broad-spectrum antibiotic that also calms inflammation in skin conditions such as acne.

Which product contains doxycycline?

The doxycycline product on SGMeds is Vibramycin, and its page gives the strengths and pack sizes.

What are the side effects of doxycycline?

Common side effects include nausea, sensitivity to sunlight and diarrhoea. Oesophagitis and vaginal thrush (candidiasis) can also happen. Rarely, a severe allergic reaction (anaphylaxis) or raised pressure inside the head can occur, and these need urgent medical attention.

Can doxycycline be taken with other medicines?

Antacids, iron, calcium and magnesium can reduce how much doxycycline the body absorbs. Taking isotretinoin as well can increase the risk of raised pressure inside the head. If you are pregnant or take other medicines, check with your doctor or pharmacist first.

What brand names is doxycycline sold under?

In other countries, doxycycline is also sold as Doxy-100, Lyranda and Doxt. Brand names vary between countries, so compare products by their active ingredient.

How much does doxycycline 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.

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Can I buy doxycycline over the counter in Singapore?

Yes, online. SGMeds does not ask for a prescription to order doxycycline: we place the order with our pharmacy partner, which prepares it and arranges delivery on your behalf.

Ordering without a prescription →

Do you deliver doxycycline to Singapore?

Yes. We deliver to Singapore and Malaysia. Express shipping is tracked and takes up to 1 week, and Regular shipping takes up to 3 weeks.

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