Please expect up to 4 to 6 weeks for reimbursement. This, in my view, is the key issue in this appeal. Without physical action to the penis, such as that occurring during sexual intercourse, sildenafil will not work to cause an erection. The patent on Revatio indicated for pulmonary arterial hypertension rather than erectile dysfunction expired in late If it is not treated right away, priapism can permanently damage your penis sudden vision loss in one or both eyes. Box , Mission, KS If your pharmacy does not participate, you may be able to submit a request for a rebate in connection with this Savings Offer. When hypertension occurs in the lungs, the heart must work harder to pump enough blood through the lungs.Is Viagra prescribed in dosages of mg, mg, or mg? The highest recommended Viagra dose for treating erectile dysfunction (ED) is mg per day, according to the . Further information. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances. Drug Identifier results for . Sildenafil is used to treat men who have erectile dysfunction (also called sexual impotence). Sildenafil belongs to a group of medicines called phosphodiesterase 5 (PDE5) .