Do not take Myfenax if breastfeeding.
The doctor should advise about using contraception before taking Myfenax, whilst taking Myfenax, and for 6 weeks after stopping intake of Myfenax. Myfenax may cause spontaneous abortions or damage, including problems with the development of the ears, to the unborn baby.
Tell the doctor straight away if pregnant, breastfeeding, pregnancy occurs, or planning to start a family in the near future.