Combined hormonal contraception is a very effective method of contraception if used correctly. The phrase 'combined hormonal contraception' means that this type of contraception contains two different types of female hormones: an oestrogen and a progestogen. The most common form of this type of contraception is the combined oral contraceptive pill, often just called 'the pill'. There are many different brands of the pill. There are also two other forms of this type of contraception - contraceptive skin patches and a vaginal ring formulation.
This is a companion discussion topic for the original article at https://patient.info/medicine/combined-hormonal-contraceptives