A The COCP acts mainly by exerting a negative feedback effect on gonadotrophin release and thereby inhibiting ovulation.

B Monophasic pills deliver doses of both hormones at altered doses throughout the cycle.

C Taken properly, the combined pill is highly effective, with a failure rate of 2/100 woman- years.

D Increased absorption of the COCP can occur if suffering from diarrhoea, vomiting or taking some oral antibiotics.

E Pill packets can be taken ‘back to back’ to reduce the frequency of the withdrawal bleed although increased irregular spotting may occur.

F None of the above.