Trinovum and Other Medications


Combined Contraceptive Pill »

Sometimes, the pill can react badly with other medications and it may not be as effective at preventing pregnancy. The pill can also stop some medications from working properly so you need to mention any medication you are on to your doctor.

The pill can be affected by medications used to treat epilepsy. These include topiramate, Felbamate, phenytoin, carbamazepine and oxcarbazepine. Medications that are used to treat HIV also render the pill ineffective. A number of antibiotics can also have a similar effect on the pill and so can the anti-fungal medication griseofulvin. Some sedatives such as barbiturates, medication for high blood pressure such as bosentan and medication for sleepiness such as modafinil can all stop the pill from working correctly. There are also some herbal medications that can interfere with the pill and reduce its effectiveness such as St Johns wort. You should mention any type of medication to your doctor do that they can check that there will not be any adverse interactions.

If you are going to be using these medications for a short period of time, your doctor will most likely advise that you use additional contraception throughout your treatment and for the following week after you have finished. However, if you are going to be using the medication for a long period of time, they may suggest that you switch to a medication that will not affect the pill.

Trinovum can also have an effect on other medications as it can interfere with ciclosporin, prednisolone, theophylline and lamotrigine. It will stop these medications from working properly and the doctor may have to alter your dosage of medication in order for them to be effective. In some cases, the interactions between your medication and the pill are too great and you may have to switch to another method of contraception.


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