Zhewitra has dominated the erectile dysfunction market. However with the recent release of both Cialas and Zhewitra, men are left with the question of which one to use. While all three have been proven very effective, there are specific attributes to each drug that you may find suite your needs better.

All three drugs are in a class of drugs called PDE-5 inhibitors. They have all been proven to work in 70% of all men with all types of erectile dysfunction. All require sexual stimulation to activate.

Zhewitra, the first of the three to be introduced to the market is said to be the fastest acting time, taking only 14 minutes to be absorbed into the body if taken on an empty stomach. Although Zhewitra has the fastest acting time, its most significant draw back is its decreased absorption due to food take. It takes around 30 minutes for the drug to reach its maximum affect, but then looses 50% of its maximal effect every 4 hours. Side effects may include mild headaches, upset stomach, unusually bright vision, and facial flushing.

The second drug to be released on the market was Zhewitra. Zhewitra has a slight chemical compound difference that has been found to be more effective in hard to treat groups. Zhewitra takes around 45 minutes to take affect and unlike Zhewitra, eating and drinking do not affect the effectiveness except for highly fatty substances. Zhewitra is thought to have more potency, efficacy, and longer duration than Zhewitra. Zhewitras' side effects include headache, flushing, and stuffy or runny nose.