It continues to work for up to 4 hours, although its action is usually less after 2 hours. Both Cialis and Viagra work quickly. Ask your doctor if you have any questions. Furthermore, sildenafil use requires caution in patients with anatomical deformation of the penis and patients with conditions potentially predisposing them to priapism, such as sickle cell anemia or multiple myeloma. Check with your doctor right away if you have a sudden decrease in hearing or loss of hearing, which may be accompanied by dizziness and ringing in the ears. Do not use this medicine if you are also using a nitrate medicine, often used to treat angina or high blood pressure. Children 1 year of age and older weighing 20 kg or less—10 mg 3 times a day.According to price-comparison site test1.ru, 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.  · The effects may be increased because of slower removal of the medicine from the body. Leukemia (blood related cancer) or. Multiple myeloma (blood related cancer) or. Sickle-cell anemia (blood disorder)—Sildenafil should be used with caution in these patients as problems with prolonged erection of the penis may occur. AdEnjoy Greater Libido & Performance. Fast Express test1.ruries: Various · Best Sellers · Aphrodisiacs · All Products · Ubulawu Dream Herbs.