Theraflu contains paracetamol, phenylephrine, and sometimes diphenhydramine. While paracetamol and diphenhydramine are generally considered relatively safe during pregnancy, phenylephrine poses risks. Phenylephrine can constrict blood vessels, potentially reducing blood flow to the uterus, which may harm the baby by limiting oxygen supply. It can also cause high blood pressure and has been linked to rare brain bleeding cases in pregnant individuals. Due to these risks, especially in the first trimester, healthcare providers usually advise against taking Theraflu during pregnancy without medical guidance. It is best to consult a healthcare provider before taking Theraflu or any similar medication when pregnant, as they may suggest safer alternatives specifically suited for flu symptom relief during pregnancy. Overall, TheraFlu may alleviate symptoms but will not treat the flu itself, and safe treatment options should be considered under medical advice. In summary:
- Paracetamol in Theraflu is considered fairly safe short term in pregnancy.
- Phenylephrine can pose significant risks to uterine blood flow and fetal health.
- Consulting a doctor is essential before use.
- Safer alternatives or prescription antiviral treatments may be recommended for flu in pregnancy.
Therefore, it is generally not recommended to drink Theraflu while pregnant without a doctor's advice, especially due to the phenylephrine content.