If you currently take daily hormonal birth control, the side effects may last slightly longer but should not carryover into your next cycle. If any of the above side effects occur, they tend to be self-limiting and resolve in a few days.

In more severe cases, it can last about a week or more. Nausea, pelvic pain, or vomiting usually resolve after 2 or 3 days. The most common effects are abdominal pain and irregular menstruation. You may have some temporary side effects that will usually pass within 24 hours. The severity and duration of Plan B side effects vary from woman to woman. Levonorgrestrel can also cause certain neurological effects, which may affect mood. It’s very unlikely that you will have any severe reactions to Plan B.

General mood changes (~ 5% of individuals).

Depression or depressed mood (~ 5-6% of individuals).

The high dose of levonorgestrel that is contained in Plan B certainly can as well.Īccording to available data, high doses of levonorgestrel can casue the following effects on mood: Usual doses of daily birth control pills are known to cause mood changes in many individuals. In fact, the dose of levonorgestrel (1.5 mg) contained in Plan B is 10 to 15 times higher than the amount contained in commonly used daily birth control pills, such as Aviane, which contains 0.1 mg of levonorgestrel. Plan B contains a high dose of the progestin levonorgestrel. Like all medication, Plan B is associated with several adverse reactions, one of which is mood changes or emotional lability.

Plan B (levonorgestrel) is an emergency contraceptive pill that contains a high dose of the progestin levonorgestrel. How long should I expect this to last? Answer I’m assuming this is due to the pill, since I never have these issues. For the past two days, I have been experiencing some mood changes which feel like extreme PMS. I took emergency contraception (Plan B) on Monday, 2/12 after a condom failure.

Plan b after effects