**2.6 Disadvantages**

There are certain disadvantages to CHC use. The efficacy of this form of hormonal contraception is highly user-dependent as it must be taken every day at the same time;

#### *Studies in Family Planning*

forgetfulness and missing pills increases the likelihood of failure. Similarly, CHC effectiveness may also be lowered with the simultaneous use of certain medications. Moreover, this method requires periodic resupply and offers no protection against gastrointestinal tract infections or sexually-transmitted infections (STIs), like the hepatitis B virus and HIV/AIDS. Though very infrequent, CHC use may sometimes delay return of fertility for 2–3 months. Finally, CHC may cause minor side-effects and risks, as detailed below.
