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Make contact with your medical professional or find unexpected emergency health-related awareness Should your erection is unpleasant or lasts lengthier than four hrs. A prolonged erection (priapism) can damage the penis.VIAGRA includes sildenafil, which is identical medicine found in A further drug identified as REVATIO. REVATIO is employed to take

an erection that won't go away (priapism). When you've got an erection that lasts in excess of 4 several hours, get health care help at once. If It's not at all treated instantly, priapism can permanently hurt your penisShould you be taking sildenafil for erectile dysfunction, your health care provider will probably start out you on a mean dose of