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Tetralysal is an antibiotic. It is used to treat infections caused by bacteria. The active ingredient lymecycline is a type of medicine called a tetracycline antibiotic. More information

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£43.95 (incl. VAT)
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Prescription required
Yes (consultation included in the price)

Read the package leaflet for more information about risks and side effects, or ask your doctor or pharmacist for advice.

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What is Tetralysal?

Tetralysal is an antibiotic. It is used to treat infections caused by bacteria. The active ingredient lymecycline is a type of medicine called a tetracycline antibiotic. Lymecycline is a broad spectrum antibiotic that is active against a wide variety of bacteria. Tetralysal is quickly absorbed into the bloodstream and deposited in the infected tissue. Tetralysal is a prescription-only medicine.

What is Tetralysal used for?

Tetralysal is used to treat bacterial infections of the skin such as severe acne (subcutaneous infections with pustules) and rosacea (redness on cheeks, forehead, nose or chin). It can also be used for bacterial infections of the lungs, bacterial eye infections, STDs and bacterial infections of the urinary tract.

How to use Tetralysal

Tetralysal capsules should be taken before meals with a full glass of water. The capsules should not be chewed, but swallowed whole. Always finish the entire course, even if symptoms such as pain, fever and inflammation have cleared up. Stopping the course early increases the chance that the infection will come back and that the bacteria will grow resistant to the antibiotic. The length of the course is determined by the doctor for each specific patient and may vary from eight days to several weeks.


Unless otherwise prescribed by a doctor, the usual dose is:

  • Adults and children aged 12 and above: one 300-mg capsule once or twice a day for as long as the doctor prescribes.

Tetralysal capsules should not be used in children under the age of 12. Always follow the prescription exactly - never use more or less than the doctor recommends. Read the package leaflet before use.

Side effects

Treatment with Tetralysal may cause side effects. The following are some of the side effects that are known to be associated with this medicine:

  • Gastrointestinal symptoms such as stomach ache, nausea, vomiting and diarrhoea;
  • Headache;
  • Dizziness;
  • Skin rash;
  • Increased sensitivity of the skin to UV light. Avoid exposure to direct sunlight and sunbeds while taking this medicine.

Consult a doctor if these or other side effects are severe. For more information on possible side effects, see the package leaflet.

When not to use Tetralysal

Tetralysal is not suitable for everyone and should not be used if:

  • You are allergic to lymecycline or any other ingredient in this medicine;
  • You are pregnant or breastfeeding;
  • You have a severe kidney or liver disorder;
  • You are taking a type of medicine known as a retinoid (Vitamin A derivative).

Consult a doctor on the use of Tetralysal if you have health problems. Tetralysal interacts with other medicines, including certain anticoagulants and antibiotics. Therefore, it is important that you mention what other medicines you are taking when you order. The doctor will be able to advise you on potential drug interactions. Warning: do not use Tetralysal after the expiration date has passed. This may cause kidney damage.

Pregnancy/driving ability/alcohol

Tetralysal should not be used by pregnant or breastfeeding women. This medicine may cause dizziness. Stay out of traffic if you experience this side effect. Alcohol may trigger or intensify side effects such as dizziness. Limit or stop drinking alcohol while taking this medicine.

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