Hence why Isotretinoin (http://en.wikipedia.org/wiki/Isotretinoin http://en.wikipedia.org/wiki/Isotretinoin) is a restricted drug in many countries, although it

Hence why Isotretinoin (http://en.wikipedia.org/wiki/Isotretinoin http://en.wikipedia.org/wiki/Isotretinoin) is a restricted drug in many countries, although it is a vitamin A-like chemical that is used to clear up very severe acne. Women who are prescribed the drug in the UK have to provide proof that they are on a reliable form of contraception and are not pregnant when they collect each month's worth of pills. It causes severe birth defects.