You’ll also need to fill out a medical questionnaire with answers about your medical history, current medications, and lifestyle habits. A newer form of the medicine that dissolves on the tongue might work faster than the pill that you swallow. Online ED consultations offer privacy, convenience, and affordability while allowing you to quickly get the medications you need—the same day, with some services. Oral medicines for ED usually work well and cause few side effects. Taking generic ED medications is an effective way to save money without sacrificing quality.Hearing loss or ringing in ears. Heart attack—pain or tightness in the chest, shoulders, arms, or jaw, nausea, shortness of breath, cold or clammy skin, feeling faint or lightheaded. Low blood pressure—dizziness, feeling faint or lightheaded, . The drugs are phosphodiesterase 5 (PDE5) inhibitors, and their brand and generic names, respectively, are Viagra (sildenafil), Cialis (tadalafil), Levitra (vardenafil), and Stendra (avanafil. Vardenafil HCl is a nearly colorless, solid substance with a molecular weight of g/mol and a solubility of mg/mL in water. LEVITRA is formulated as orange, round, film-coated tablets with “BAYER” cross debossed on one side and “”, “5”, “10”, and “20” on the other side corresponding to mg, 5 mg, 10 mg, and.