A Answers (1)
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.
Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.