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There have been rare reports of prolonged erections greater than 4 hours and priapism (painful erections greater than 6 hours in duration) for this class of compounds. Priapism, if not treated promptly, can result in irreversible damage to the erectile tissue. Physicians should advise patients who have an erection lasting greater than 4 hours, whether painful or not, to seek emergency medical attention.If you buy any medicines, check with a pharmacist that they are safe to take with your other medicines. buy cialis canada pharmacy

You should not eat food or take medications that contain nitrates such as processed meats or nitroglycerin.

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Cialis was the third PDE-5 inhibitor to come to market in the United States and was approved by the FDA at the end of November 21, 2003. Cialis is manufactured by Lilly ICOS LLC.What should I avoid while taking Cialis? natural viagra pills Prolonged Erection

viagra online Auditory: tinnitus, vertigo belchingFor once-a-day evaluation of tadalafil at doses of 2.5, 5, and 10 mg 3 clinical studies were initially conducted involving 853 patients of various ages (range 21-82 years) and ethnicities, with erectile dysfunction of various severities (mild, moderate, severe) and etiologies. In the two primary efficacy studies of general populations, the mean per-subject proportion of successful intercourse attempts were 57 and 67% on CIALIS 5mg, 50% on CIALIS 2.5mg as compared to 31 and 37% with placebo. In the study in patients with erectile dysfunction secondary to diabetes, the mean per-subject proportion of successful attempts were 41 and 46% on CIALIS 5mg and 2.5mg, respectively, as compared to 28% with placebo. Most patients in these three studies were responders to previous on-demand treatment with PDE5 inhibitors. In a subsequent study, 217 patients who were treatment-naive to PDE5 inhibitors were randomised to CIALIS 5mg once a day vs. placebo. The mean per-subject proportion of successful sexual intercourse attempts was 68% for CIALIS patients compared to 52% for patients on placebo.Viagra can cause serious side effects. Rarely reported side effects include:

Viagra is in FDA Pregnancy Category B, meaning it's not expected to harm a fetus, but no adequate studies have been carried out in pregnant women to prove it. Buying CIALIS safely online Cost of CIALISFrequency not reported: Pharyngitis[Ref]