- regularly use medications which alter mood or blood vessel function (zolpidem or zalpelon, aspirin, nonsteroidal antiinflammatory drugs, sympatholytics, theophylline, central acting agonists, beta-blockers, coumadin, nitrates, triazolobenzodiazapines, or use steroids (testosterone-patch or pill form), use tryptophan or monoamine oxidase inhibitors (MAOIs),