Medically reviewed by Jurairat J. Molina, MD Key Takeaways People with sulfa allergies should avoid medications containing sulfonamides.Bactrim, Septra, and Silvadene are examples of drugs containing ...

Phenylephrine, a popular ingredient in many over-the-counter allergy and cold medicines, is ineffective in tablet form, an independent advisory committee to the US Food and Drug Administration agreed ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." More good news: Over-the-counter allergy medications are as effective as most prescription ones, says ...