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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.
Pseudoephedrine should not be used by people with severe hypertension or coronary artery disease. It should be used with caution in people with mild to moderate hypertension, cardiac disease, hyperthyroidism, hyperglycemia, benign prostatic hyperplasia, diabetes mellitus, kidney problems, seizure disorder, and glaucoma.