A member asked:

How long before levlen (ethinyl estradiol and levonorgestrel) ed is effective?

A doctor has provided 1 answer
Dr. Alvin Lin answered

Up to 14 days: Check out http://www.Mydr.Com.Au/cmis/pdfs/cmi8018.Pdf and http://www.Medsafe.Govt.Nz/consumers/cmi/l/levlen (ethinyl estradiol and levonorgestrel).Pdf for info on levlen (ethinyl estradiol and levonorgestrel) ed. How quickly it takes effect depends upon what you were doing/taking prior. Whether to use add'l contraception, eg condom, depends upon what you read (see above) and your doctor. Best to ask him/her.

Answered 6/29/2012

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