Side effects

Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with this medicine. Because a side effect is stated here, it does not mean that all people using this medicine will experience that or any side effect.

Headache

Rash

Diarrhoea

Blood disorders

Pain in the muscles (myalgia)

Seizures (convulsions)

Nausea and vomiting

Severe blistering skin reaction affecting the tissues of the eyes, mouth, throat and genitals.(Stevens-Johnson Syndrome)

Damage to the liver

Damage to the kidneys

The side effects listed above may not include all of the side effects reported by the drug's manufacturer. For more information about any other possible risks associated with this medicine, please read the information provided with the medicine or consult your doctor or pharmacist.

How can this medicine affect other medicines?

Sulfametopyrazine increases the risk of kidney damage if this drug is taken with cyclosporin. Sulfametopyrazine when given with the anti-malarial pyrimethamine may decrease the levels of folic acid in the blood. Sulfametopyrazine when given together with the antiepileptic drug phenytoin may increase the level of phenytoin in the blood and may also enhance the effects of the drug in lowering the levels in folic acid in the blood. The blood thinning effects of nicoumalone and warfarin are increased. The effect of sulphonylureas may be enhanced leading to low blood sugar levels. The risk of toxicity from methotrexate in increased when used with sulfametopyrazine. Sulfametopyrazine may reduce the effectiveness of the combined oral contraceptive pill.

Other medicines containing the same active ingredients

Kelfizine W

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