AdYour meds, at a cost you’ll like. Visit GoodRx to find Rx coupons at a pharmacy near you. Thousands of insured customers prefer GoodRx for all their pharmacy has been visited by K+ users in the past monthTop Medical App & Site · Cheaper Than Your Copay · Prescription DiscountsA prescription drug card that actually does work – Karaarslan notes that a long-term follow-up is warranted for visual side-effects of sildenafil. Karaarslan put the patients through a battery of eye and vision tests, evaluated after 10 days, and then tested them again 11 days later. Your doctor may adjust your dose if needed. An inherited eye disease that affects the retina. Avanafil Stendra. Researchers have also systematically tested whether the drug induces changes to the visual function of volunteers and patients with eye disease, and seen no adverse effects.WebUses. Sildenafil is used to treat male sexual function problems (impotence or erectile dysfunction-ED). In combination with sexual stimulation, sildenafil works by increasing blood flow to the. WebJul 24, · But some side effects may be long term, including the following rare side effects: Priapism, which is an erection that lasts longer than 4 hours and won’t go away. If not treated immediately. WebFeb 6, · Karaarslan notes that a long-term follow-up is warranted for visual side-effects of sildenafil. Karaarslan also isn’t sure why these particular patients suffered long-lived vision changes from a.The Korean Court system made a ruling against Pfizer in June , allowing for the unhindered domestic production of generic prescription sildenafil. Brand names Why is this medication prescribed? For treatment of pulmonary arterial hypertension: For oral dosage forms suspension or tablets : Adults—20 milligrams mg 3 times a day. This medicine can cause serious side effects in patients with heart problems. If you experience chest pain, dizziness, or nausea during sex, seek immediate medical help.