How many types of reliable contraception are recommended for individuals taking ribavirin?

Individuals taking ribavirin are advised to use two types of reliable contraception due to the drug's potential teratogenic effects. Ribavirin can cause severe birth defects if a woman becomes pregnant while taking the medication, necessitating dual methods of contraception to ensure there is a very low risk of pregnancy.

The recommendation for using two forms of contraception stems from the possibility of contraceptive failure with a single method, whether due to user error or method-related complications. Therefore, combining two reliable methods significantly enhances contraceptive effectiveness. This can include the use of a barrier method, such as condoms, alongside a hormonal method, such as birth control pills, to maximize protection against unplanned pregnancy. This approach underscores the importance of taking precautionary measures seriously when prescribed medications with known risks during pregnancy.