quinine.
no it can't prevent pregnancy
Vitamins don't prevent pregnancy.
BV won't prevent pregnancy.
Lithium does NOT prevent pregnancy.
NO ! ONLY contraception or abstinence can prevent pregnancy !
Starch as in pasta, potatoes etc? That does not prevent pregnancy.
No. Cytotec can be used for abortion but not to prevent pregnancy.
Yaz is a birth control pill. It is intended to prevent pregnancy.
yes. the amount is neglible. it is used as an anti-malarial agent for hundreds of years and is very safe at the doses used for that. it has been used as an abortifacient at very high doses which has made people unnecessarily concerned about its use in pregnancy. it has not been shown to be teratogenic in humans.
Tonic water containing quinine is used in gin and tonic drinks. Originally, this was for the anti-malarial qualities of quinine. In the United States, although quinine is a prescription drug, tonic water containing quinine is readily available in most grocery stores. This is often used as a remedy for nocturnal leg cramps. Caution should be used when consuming quinine in any form, however, since quinine can have severe side effects, should not be taken by people with certain conditions, and should not be taken with certain medications.
Advil don't prevent pregnancy no matter how many you take.