Psychological factors like stress, depression, or anxiety can also contribute. However, others work on a cash-pay basis and don’t partner with insurance companies. Some people may also have ringing in their ears tinnitus or dizziness. Finally, we checked customer reviews to better understand user experiences with each platform. This increase in blood flow results in a firmer, longer-lasting erection. Finding an online ED provider can feel overwhelming. · VIAGRA is supplied as blue, film-coated, rounded-diamond-shaped tablets containing sildenafil citrate equivalent to 25 mg, 50 mg, or mg of sildenafil. Tablets are debossed with PFIZER on one side and VGR25, VGR50 or VGR on the other to indicate the dosage strengths. 4. Contraindications. According to price-comparison site , generic Revatio will cost you as little as $ per pill, depending on where you fill your prescription. That’s compared with more than $50 per. Los medicamentos orales para la disfunción eréctil generalmente son eficaces y tienen pocos efectos secundarios. Los cuatro medicamentos principales para la disfunción eréctil que se toman por boca son los siguientes: Avanafilo (Stendra) Sildenafilo (Viagra) Tadalafilo (Cialis) Vardenafilo. Estos medicamentos se denominan inhibidores .