Exploring Progesterone Only Pills: Understanding Old and New Types with Dr Alison Creagh

In this episode of The Good GP, Dr Sean Stevens and Dr Rebecca Goadby welcome Dr Alison Creagh to discuss the differences between older progesterone-only pills - such as levonorgestrel and norethisterone - and the newer drospirenone ones. Alison outlines how the older pills primarily work through cervical mucus and, to some extent, blocking ovulation, while the newer drospirenone pills are more effective at blocking ovulation and have a wider window of time for pill intake. The impact on bleeding is also highlighted, with the drospirenone pills leading to more regular bleeding during the withdrawal section.

Discussing the cost and payment options for the different pills, with the older pills being more cost-effective for those with healthcare cards, while the newer ones are more forgiving in terms of timing. Additionally, contraindications and missed pill windows for the two types of pills are explored, with specific attention to potassium levels in relation to the newer drospirenone pills.

Alison further delves into the advice for the missed pill window and the potential side effects for both types of progesterone-only pills. The variability in individual responses to these pills is highlighted, as well as the potential need to try different types if hormonal side effects arise.

The episode concludes with Sean Stevens thanking Alison Creagh for her valuable insights and highlighting the important takeaways from the discussion.

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