The old people who have good results in using Viagra will certainly continue to use it and some people also find Viagra better than Cialis as they are not getting optimal results. All three drugs are very good and you can use the one which is best for you. These drugs found to be good for the treatment options of erectile dysfunction but at the same time these created confusion among patients and physicians.

These three drugs are considered to be the first line of the medical treatment. The healthy and young people might have physical causes of their erectile dysfunction. In this case they should institute treatment as the disease might be serious. The sexual dysfunction may also due to some primary disease. Most of the people have erectile dysfunction due to physical causes. In this case PDE5 inhibitor will be their first line of choice. It can be very difficult to select a drug without proper information and without knowing about the sexual history of patient and his partner.

You should be able to know about the pros and cons of these three drugs and other sexual circumstances which may indicate the use of drugs. Viagra is the first and most important drugs of PDE5 for the treatment of erectile dysfunction. It is made after research of many years. It can be good for 70% of men with all types of erectile dysfunction. Improvement in sexual function was studied with Viagra initially. The studies were made on the erectile dysfunction in patients with Viagra while other two drugs were studied based on patients who had success with Viagra. There can be decreased absorption due to food intake with Viagra and it is its major drawback.

The Viagra pill should be taken empty stomach as absorption takes place in 30 minutes. The effect of this drug remains for one hour maximum and its 50% of concentration is lost after every four hours. It is important to have the sexual stimulation for erection. The concentration of Viagra appears to be therapeutic concentration among all three drugs. There can be side effects of Viagra as well like headache, facial flushing, stomach upset and unusual ocular disturbance. Levitra is another PDE5 inhibitor which is approved by FDA. The 15% of the Levitra is non protein bound and bioactive. The success of proteins with Viagra was not studied therefore its efficacies are shifted to positive.

Levitra is found to be more potent and efficient than Viagra for most of patients. The efficacy of this medication is based on sexual satisfaction or successful penetration instead of improvement. The time required for Levitra to reach at its peak is 40 minutes and it is affected by a very high fat diet. This drug can be eaten and taken without affecting its absorption and concentration by the patients. The half life of Levitra is five hours but there can be multiple half lives with efficacy of drugs as its therapeutic levels do not appear to be the maximal concentration.

The Levitra is more potent and it has longer duration and efficacy due to slight chemical change. The 25% of the patients can have optimal responses within 16 minutes of the intake of pill. Viagra has also shown action longer than duration of four hours although its package is prescribed for four hours. Cialis is the best if it comes to the duration. The duration approved for Cialis is 36 hours therefore its efficacy is very high out to 100 hours. There can be no affect any food and it can be taken with pure fat. The effect of Levitra can be inhibited with McDonald’s double cheeseburger with French fries and milkshake but there will be no effect of wine, salad and dessert. These will also have no effect on absorption of cialis. There can be concentration of two hours and half life between 16 to 22 hours of Cialis as it is protein bound.