RT Journal Article SR Electronic T1 Paternal use of ribavirin-interferon alpha 2B combination therapy before conception. JF Canadian Family Physician JO Can Fam Physician FD The College of Family Physicians of Canada SP 1623 OP 1625 VO 51 IS 12 A1 Taguchi, Nobuko A1 Ito, Shinya YR 2005 UL http://www.cfp.ca/content/51/12/1623.abstract AB QUESTION: One of my male patients is receiving ribavirin-interferon alpha 2B (Pegetron) combination therapy for chronic hepatitis C. His wife recently found out she is 6 weeks pregnant. They are concerned that the medications might have affected his sperm. How should I advise them? ANSWER: To the best of our knowledge, paternal exposure to ribavirin-interferon alpha 2B has no adverse effects on reproduction. Although we do not have sufficient information to confirm this, several pregnancies where the father had been exposed to these medications turned out fine. If an unexpected pregnancy occurs while the father is receiving this therapy, there is no medical indication for terminating the pregnancy.