Hormonin

How can this medicine affect other medicines?

It is important to tell your doctor or pharmacist what medicines you are already taking, including those bought without a prescription and herbal medicines, before you start treatment with this medicine. Similarly, check with your doctor or pharmacist before taking any new medicines while taking this one, to ensure that the combination is safe.

The following medicines may potentially reduce the blood levels and effect of this medicine, which could result in recurrence of symptoms or irregular bleeding:

antiepileptic medicines such as carbamazepine, phenytoin, phenobarbital and primidone

barbiturates such as amobarbital

nevirapine and efavirenz for HIV infection

protease inhibitors for HIV infection such as ritonavir and nelfinavir

rifamycin antibiotics such as rifabutin and rifampicin

the herbal remedy St John's wort (Hypericum perforatum).

Oestrogens may increase the blood level of ropinirole used to treat Parkinson's disease.

Some women with diabetes may need small adjustments in their dose of insulin or antidiabetic tablets while taking this medicine. You should monitor your blood sugar and seek advice from your doctor or pharmacist if your blood sugar control seems to be altered after starting this medicine.

Other medicines containing the same active ingredients

There are currently no other medicines available in the UK that contain these three forms of oestrogen.

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