Ask your doc!: Check out http://en.Wikipedia.Org/wiki/dydrogesterone & http://www.Drugs.Com/international/dydrogesterone.Html re Duphaston brand of dydrogesterone which is a progestin usually used by itself for specific progestogen deficiencies. Marvelon is a brand name combination birth control pill (http://www.Drugs.Com/international/marvelon.Html) w/both estrogen & progestogen. Ask ur doc why prescribed both.
Answered 2/19/2015
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