There were no cases of syncope. Such an event may be a sign of non-arteritic anterior ischemic optic neuropathy NAION , a cause of decreased vision, including permanent loss of vision, that has been reported rarely post-marketing in temporal association with the use of all PDE5 inhibitors. Follow all directions on your prescription label and read all medication guides or instruction sheets. Stepwise increase in alpha-blocker dose may be associated with further lowering of blood pressure in patients taking a PDE5 inhibitor. Physicians should discuss with patients the potential cardiac risk of sexual activity for patients with preexisting cardiovascular risk factors. Since higher doses of ketoconazole mg daily may result in higher increases in Cmax and AUC, a single 2.Vardenafil (Levitra): Uses, Alternatives, Side Effects & More – GoodRx feeling faint or weak, dizziness, blurry vision, feeling confused Erection lasting for more than 4 hours Headache (up to 15%) Flushing (up to 11%) Stuffy nose (up to 9%) Indigestion (up to 4%) —skin rash,, swelling of the face, lips, tongue, or throat. Strength(s): EQ MG BASE (discontinued), EQ 5MG BASE (discontinued), EQ 10MG BASE (discontinued), EQ 20MG BASE (discontinued) All of the above formulations have been discontinued. Note: Fraudulent online pharmacies may attempt to sell an illegal generic version of Levitra. • LEVITRA is taken as needed: For most patients, the starting dose is 10 mg, up to once daily. Increase to 20 mg or decrease to 5 mg based on efficacy/tolerability. () • A starting dose of 5 mg LEVITRA should be considered in patients ≥65 years of age. () • LEVITRA is taken orally, approximately 60 minutes before sexual activity.
