Tiredness, dizziness; depression; mental confusion, short-term memory loss; headache, somnolence, nightmares, insomnia. Shortness of breath, bradycardia; cold extremities, arterial insufficiency usually Raynaud type, palpitations, CHF, peripheral edema, syncope, chest pain, hypotension. Wheezing, dyspnoea. Diarrhea; nausea, dry mouth, gastric pain, constipation, flatulence, digestive tract disorders, heartburn. Pruritus, rash; fever w/ aching & sore throat, laryngospasm, resp distress. Peyronie's disease; musculoskeletal pain, blurred vision, decreased libido, tinnitus.