Can other medications affect the contraceptive Pill?
The following may reduce the effectiveness of the combined Pill
- Antibiotics
- St John's Wort
- Carbamazepine
The following may reduce the effectiveness of the Progestogen only Pill or mini-Pill . These are the same medicines which may reduce the efficacy of Levonelle One Step®.
- Carbamazepine
- St John's Wort
- Rifampicin
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