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Sudafed (pseudoephedrine) and other decongestants can cause erectile dysfunction (ED) in some men. If you are having trouble getting or maintaining an erection while taking Sudafed, your doctor or pharmacist can recommend a different medication.
What is Pseudoephedrine? Pseudoephedrine is a medication used to treat nasal congestion, sinus congestion, and a runny nose. These symptoms may be caused by multiple conditions such as the common cold, sinusitis or allergies. Pseudoephedrine only treats symptoms; it is not a cure for viral or bacterial illness.