Implant Contraception

Question 1

What are the mechanisms of action of implant contraception?

Answer 1

1. Inhibits ovulation

2. Thickens cervical mucus

Question 2

What is the regime for implant contraception?

Answer 2

1. 4cm flexible rod containing progestogen inserted in upper arm sub-dermally with local anaesthetic.
2. Insert on day 1-5 of cycle (immediately effective)
3. If inserted on other days, use condom for 7 days
4. Lasts 3 years

Question 3

What are the disadvantages of implant contraception?

Answer 3

1. Irregular bleeding in first year
2. Can get infrequency bleeding or heavy bleeding
3. Efficacy reduced with hepatic enzyme-inducing drugs