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The following adverse reactions have been identified during post approval use of Cialis. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. These events have been chosen for inclusion either due to their seriousness, reporting frequency, lack of clear alternative causation, or a combination of these factors.

Cardiovascular Considerations generic for viagra systems gave way to digital ones, turning IT from a manufacturingmedicines called nitrates (see "What is the most important information I should know about Viagra?")Common (1% to 10%): Erythema, rash, angioedema, allergic edema

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Consider a starting dose of 25 mg in patients > 65 years, patients with hepatic impairment (e.g., cirrhosis), and patients with severe renal impairment (creatinine clearance <30 mL/minute) because administration of Viagra in these patients resulted in higher plasma levels of sildenafil [see Use in Specific Populations (8.5, 8.6, 8.7) and Clinical Pharmacology (12.3)].Note: ED caused by narrowed arteries commonly develops several years before any symptoms or problems develop due to narrowing of the heart (coronary) arteries (or other arteries). Therefore, ED is thought of as an 'early warning signal' that heart disease (or other cardiovascular diseases) may develop. A large international study found that men with ED are twice as likely to have a heart attack, 10% more likely to have a stroke and 20% more likely to be admitted to hospital with heart failure. This is why some of the tests listed below may be advised if you develop ED. Also, you are likely to be advised by your doctor on how to modify any risk factors listed above. The aim is to prevent heart disease and other cardiovascular disease from developing.

viagra india Make sure that you only pay for the pills. Avoid sites that ask you for a membership fee or a processing fee on top of the cost of Viagra.-Visual color distortions: Chloropsia, chromatopsia, cyanopsia, erythropsia and xanthopsia

Side effects Facial flushing (reddening), headaches. Tadalafil also may cause chest pain, low blood pressure, congestion, dizziness. acial flushing (reddening), headaches, stomach upset, diarrhea, flu like symptoms and nausea. Vardenafil also may cause chest pain, low blood pressure, blurred vision and changes in color vision, abnormal ejaculation and priapism (painful erection).red or yellow colour tinges to your vision or colourless objects appear coloured have heart problems such as angina, heart failure, irregular heartbeats, or have had a heart attack. Ask your healthcare provider if it is safe for you to have sexual activity. You should not take Cialis if your healthcare provider has told you not to have sexual activity because of your health problems.