What is an implant?

An implant is a hormonal method of birth control that consists of match-sized plastic rods inserted just underneath the skin in the upper arm. The rods release a constant dose of a progestogen which creates the contraceptive effect.

How does it work?

The contraceptive effect of the implant is primarily achieved by inhibition of ovulation. Ovulations were not observed in the first two years of use and only rarely in the third year. Besides inhibition of ovulation, the implant also causes changes in the cervical mucus, which hinders the passage of the sperm.

How effective is it?

Although no direct comparison was made, the contraceptive efficacy appeared to be at least comparable with that known for combined oral contraceptives. The high degree of protection against pregnancy is obtained among other reasons because, in contrast to OCs, the contraceptive action of the implant is not dependent on the regular intake of tablets.

Are there side effects?

The implant can be associated with some unwanted effects. These may include:

Headache

Headaches may occur but this side effect is rare. If headaches are severe or persistent, contact your doctor.

Menstrual bleeding irregularities

Implants will change your periods. Usually, there will be less or even no bleeding days but if bleeding occurs it will be irregular.

Weight change

Weight gain varies among individuals. Some women will gain weight, others will lose weight. Usually the weight changes are small. Watching what you eat and getting adequate exercise may help when you are experiencing weight gain.

Depression, ovarian cysts and breast tenderness

These side effects have been reported with the implant, but are extremely rare.

Are there benefits to the implant?

Yes. These include:

• you do not have to remember to take a daily pill
• you do not have to plan when to have sex
• you are protected against pregnancy for 3-5 years
• implants are considered to be a safe contraceptive option

You may NOT be a good candidate for the implant if you:

• are afraid of even small surgical procedures (this is necessary for insertion and removal of implant)
• might be pregnant
• suffer from vaginal bleeding other than your normal periods

What if I want to become pregnant?

No need to worry, you may have the implants removed at any time. Clinical trials demonstrated ovulation occurs within 3 months for most of the women.