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Use in Specific PopulationsVery common (10% or more): Flushing (11%) canada drugs cialis Effects on Eye [see Warnings and Precautions (5.4)]

Erectile dysfunction is a condition where the penis does not harden and expand when a man is sexually excited, or when he cannot keep an erection. When a man is sexually stimulated, his body's normal response is to increase blood flow to his penis to produce an erection. By controlling the enzyme, sildenafil helps to maintain an erection after the penis is stroked. Without physical action to the penis, such as that occurring during sexual intercourse, sildenafil will not work to cause an erection. bleeding of the eye

itching skin does viagra make you last longer conivaptan (Vaprisol)Uncommon (0.1% to 1%): Dyspnea, epistaxisWHO CAN TAKE Levitra?If you take too much (Overdose)

Sudden loss or decrease in hearing which may be accompanied by ringing in the ears and dizziness, loss of vision in one or both eyes and seizures have been reported in people taking CIALIS. It is not possible to determine whether these events are related directly to CIALIS, to other diseases or medications, to other factors, or to a combination of factors. If you experience these symptoms, stop taking CIALIS and contact a doctor immediately.Concomitant administration with potent CYP3A4 inhibitors (such as ritonavir, indinavir, ketoconazole) or moderate CYP3A4 inhibitors (such as erythromycin) increases plasma concentrations of vardenafil. Dosage adjustment is necessary when Levitra is administered with certain CYP3A4 inhibitors [see Dosage and Administration (2.4), Drug Interactions (7.2)]. viagra 100 mg Physicians should advise patients to stop use of all phosphodiesterase type 5 (PDE5) inhibitors, including Viagra, and seek medical attention in the event of a sudden loss of vision in one or both eyes. Such an event may be a sign of non-arteritic anterior ischemic optic neuropathy (NAION), a rare condition and 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. Based on published literature, the annual incidence of NAION is 2.5–11.8 cases per 100,000 in males aged ≥ 50. An observational study evaluated whether recent use of PDE5 inhibitors, as a class, was associated with acute onset of NAION. The results suggest an approximate 2 fold increase in the risk of NAION within 5 half-lives of PDE5 inhibitor use. From this information, it is not possible to determine whether these events are related directly to the use of PDE5 inhibitors or to other factors [see Adverse Reactions (6.2)].

2 CIALIS options for ED Information on taking CIALIS CIALIS side effectsUse: Treatment of erectile dysfunction (ED)

levitra and grapefruit Cialis can cause your blood pressure to drop suddenly to an unsafe level if it is taken with certain other medicines. You could get dizzy, faint, or have a heart attack or stroke. Never take Cialis with any nitrate or guanylate cyclase stimulator medicines.Some sildenafil side effects may not need any medical attention. As your body gets used to the medicine these side effects may disappear. Your health care professional may be able to help you prevent or reduce these side effects, but do check with them if any of the following side effects continue, or if you are concerned about them:

If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online [at http://fda.gov/Safety/MedWatch] or by phone [1-800-332-1088].How Viagra? Tablets Should Be Taken