Impotence is a disease that has stressed men from long time. Due to the embarrassing nature it is still an uncomfortable topic to be discussed. Modern medicine has come up with helpful medicines to assist men who have erection problem. They don't have to worry anymore about having erection problem. Viagra, Cialis and Levitra are found to be most effective impotence treatment drugs up till now. These are the only drugs approved by FDA for treating erectile dysfunction. They all work in the same way by increasing the flow of blood into the penis so that when there in sexual stimulation, erection can be obtained.

Viagra, Cialis and Levitra all three are PDE – 5 enzyme inhibitor. PDE- 5 is found in penis, by inhibiting PDE – 5 they allow more blood to flow into penis thereby generation erection. Sildenafil, Tadalafil and Vardenafil are active agents of Viagra, Cialis and Levitra respectively. The key differentiator between these impotence treatment drugs is the time taken for action and the time their effect lasts. Viagra and Levitra take 45 minutes to one hour to show their effect, while Cialis starts working in just 30 minutes. Effect of Viagra and Levitra only lasts for four to five hours whereas Cialis works for 36 hours, that's why Cialis is also called weekend pill because of its long lasting effect.

Dosage: Viagra is available in dosage of 25mg, 50mg and 100mg, Cialis 10mg and 20 mg while Levitra is available in 5mg, 10mg and 20mg. As cialis and Levitra come in smaller dosage they have less possibility of side effects compared to Viagra.

Cost: The cost of all the three drugs Viagra, Cialis and Levitra is almost same, Cialis is bit cheaper.

Appearance: Viagra is oval shaped blue tablet; Cialis is yellow tablet almond shaped and Levitra orange tablet

Pros and Cons of: Viagra, Cialis and Levitra:

Viagra's major drawback includes decreased absorption due to food intake. You should take the pill on an empty stomach. The drug takes about one hour to show its maximum effect and lasts only for four hours. Sexual stimulation is necessary for obtaining erection. Side effects of Viagra are headache, facial flushing, stomachache, back pain. Levitra is found to be more potent than Viagra. Levitra also takes about an hour to show its maximum effect, and is affected by high fat diet. Side effects of Levitra: headache, flushing, flu, rhinitis. If duration is the goal, than Cialis is the winner. Cialis has been approved for duration of 36 hours. It is not affected by any kind of food and also can be taken with fat.

Cialis with its long lasting effect appears to be the easiest, cost effective treatment for erectile dysfunction

In general, all three drugs work and the patients should talk to their doctors about finding the one that works best for them and their sexual lifestyle. These three drugs have now created confusion among physicians and patients.

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