Da thalidomid kan findes i sæd, skal mandlige patienter benytte kondom i behandlingsperioden samt 1 uge efter afbrydelse af behandling og/ eller behandlingsophør, hvis deres partner er gravid eller er i den fertile alder og ikke benytter effektiv prævention.
As thalidomide is found in semen, male patients must use condoms during treatment and for 1 week after dose interruption and/ or cessation of treatment if their partner is pregnant or is of childbearing potential not using effective contraception.