Information specific to: Anthisan. About Anthisan and how it works This medicine is used to treat insect bites and stings and nettle rash. The main ingredient mepyramine is an antihistamine which reduces redness, swelling, and itching. This medicine is available as a cream which is applied on to the skin. It is best to apply this medicine as soon as possible after a bite or sting. Speak to your doctor if your symptoms do not improve after three days or if they get worse during treatment with this medicine. Before using Anthisan This medicine may not be suitable for everyone and some people must never have it. Check the leaflet that comes with your medicine to make sure that the medicine is suitable before having it. Always get advice from a healthcare professional before having this medicine if: you are allergic or sensitive to or have had a reaction to any of the ingredients in the medicine you have eczema or broken skin in the area needing treatment Medicines interactions If you are taking more than one medicine they may interact with each other. This medicine is unlikely to have any important interactions. But speak to your pharmacist or doctor if you get any unusual symptoms while having this medicine with other medicines. Possible side effects of Anthisan Most medicines can cause some side-effects but not everyone having the same medicine will get the same side-effects. The following side-effects have been associated with people having this medicine: skin sensitivity reactions - stop using this medicine if you get sensitivity reactions Pregnancy and breast-feeding If you are trying to become pregnant, are pregnant, or are breast-feeding, you should seek medical advice before having this medicine. Other important information Make sure that you read the leaflet that comes with your medicine to check the amount you should apply and if there is anything that you need to do if you apply more than the recommended amount. If you are in any doubt about whether this medicine is suitable for you, speak to your doctor or pharmacist. This medicine is for external use only. If this medicine is applied on large areas it may be absorbed through the skin and may affect your ability to drive or operate machinery. Do not drive or operate machinery until you know how this medicine affects you. Keep all medicines out of the sight and reach of children.