FSRH Clinical Guideline: Combined Hormonal Contraception (January 2019, Amended November 2020)
... 18 7.2.2 Is contraceptive effectiveness of CHC affected by bariatric surgery? 18 7.2.3 What drug interactions are important to consider in relation to CHC? 19 7.2.4 Severe diarrhoea or vomiting 21 ...