However, all contain the same hormone — a progestin called levonorgestrel, says Chang. Levonorgestrel works to prevent pregnancy by: Here's how the four different types of hormonal IUDs stack up ...

There are 3 types of HRT: estrogen-only, progestin-only ... There are a few different types of hormone therapy that can help target these symptoms and the right one for you will depend on your ...

There are more than 20 different types of Pill, nearly all containing a similar amount of oestrogen. The main way in which Pills differ is in their progesterone content. Today, all types of ...