No black box warning on record for Theraflu Severe Cold Relief
As of the latest FDA labeling reviewed, Theraflu Severe Cold Relief (ACETAMINOPHEN, DEXTROMETHORPHAN HBR, DIPHENPHYDRAMINE HCL, GUAIFENESIN) does not carry a black box warning. Standard warnings and precautions still apply — see the full Theraflu Severe Cold Relief medicine page for the complete safety profile.