What restrictions apply to using Lemsip Cough for Mucus Cough & Catarrh oral solution during pregnancy or breastfeeding?

Lemsip Cough for Mucus Cough & Catarrh oral solution should not be used during pregnancy or breastfeeding unless advised by a doctor or pharmacist, because pregnancy data on guaifenesin are limited and no information on use during lactation is available.