What are the side effects of the implanon?

See product insert: Changes in menstrual bleeding patterns mood swings weight gain headache acne depressed mood other common side effects include: headache vaginitis (inflammation of the vagina) weight gain acne breast pain viral infections such as sore throats or flu-like symptoms web resource http://www.Implanon-usa.Com/en/consumer/about-it/risks-and-side-effects/index.Asp.