How long do the side effects of Levonorgestrel (Plan B) last. And how long does the drug stay in your system?


Question:

Answers:
SIDE EFFECTS:

http://www.rxlist.com/drugs/drug-17838-Plan+B+Oral.aspx?drugid=17838&drugname=Plan+B+Oral#sideeffects

Nausea, vomiting, stomach pain, dizziness, breast tenderness, tiredness and weakness, headache, menstrual changes, and diarrhea may occur. If any of these effects persist or worsen, notify your doctor.

Tell your doctor immediately if any of these serious side effects occur: low stomach/abdominal pain

If you notice other effects not listed above, contact your doctor or pharmacist.

Metabolism:

http://www.go2planb.com/section/prescribing_info/

The elimination half-life of levonorgestrel following single dose administration as Plan B (0.75 mg) is 24.4 ± 5.3 hours. Excretion following single dose administration as emergency contraception is unknown, but based on chronic, low-dose contraceptive use, levonorgestrel and its metabolites are primarily excreted in the urine, with smaller amounts recovered in the feces.

Other Answers:
The side effects like headache, nausea and vomitting usually only last 2 or 3 days. Most people do not experience these side effects. Also, your next period may be a bit more painful and "clumpy" for a lack of better words. As for as long term side effects, it hasn't been out long enough to really know. I'd be interested to see how the health of women who have taken it a number of times turns out. Hopefully there are no long-term side effects!



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