Cold/Cough Agent

Who should not take guaifenesin?

A Answers (1)

  • AStacy Wiegman, PharmD, Pharmacy, answered
    Do not take guaifenesin if you:
    • have phenylketonuria, or PKU, a genetic condition that causes mental retardation if phenylalanine (a component of guaifenesin) is consumed 
    • are allergic to guaifenesin
    • are pregnant or breastfeeding
    In addition, guaifenesin should not be given to a child under four years of age without authorization from a doctor.

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