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I would like to advise that you must not allow your wife to take Unwanted 72 like that. ONLY WHEN unexpected loss of contraception
then only take it. She can be on the Combined OCP
for whole month which is safer as Unwanted 72 causes lot of side effects like the bleeding problem your wife is having. Unwanted 72 can cause heavy bleeding, irregular and early bleeding as well. Speak to her Gynaecologist and request for contraception like Combined OCP or Copper T or 3 monthly injections which is more safe than Unwanted 72.