COMPARE VIAGRA, LEVITRA, CIALIS

Drugs Viagra, Cialis and Levitra are the essential drugs for the treatment of erectile dysfunction. A time-tested drug is Viagra (its active ingredient is sildenafil citrate). Viagra was opened more than 25 years ago. Its high evidence base and extensive clinical tests is the basic and not the only advantage over other drugs.

Levitra (active ingredient – Vardenafil) – a relative newcomer in the pharmaceutical market. Cialis (active ingredient – tadalafil) – appeared in 2003. Despite the fact that they appeared recently, these drugs, however, have passed well all clinical studies. All three drugs act on the corpus cavernosum of the penis,
contributing to it blood supply and cause resilient erection. The mechanism of action of these drugs is the same.

The main differences between this three drugs

The most crucial indicator of the effectiveness is the duration of action. Viagra works up to 6 hours, Levitra up to 12, and Cialis up to 36 hours (it is called “the weekend drug”). Cialis is more comfortable in use, you do not need to worry about the that its action can suddenly end;

Time of taking the drug

Here Levitra is the leader, it begins to be active in 15 minutes after ingestion. Viagra takes effect in 30-45 minutes. Cialis is better to take 30 minutes before sexual intercourse;

The dependence of the power of action of food intake and alcohol

The medicinal effect of Viagra is significantly reduced when taking abundant and fatty foods, so it always shoul be taken on an empty stomach. Simultaneous intake of alcohol with this drug can weaken the effect of Viagra. On the therapeutic action of Levitra and Cialis, meal, (especially fat), and alcohol, almost have no effect;

Half life

This indicator is important for people suffering from cardiovascular and renal disease. The use of these drugs together with the preparations of nitroglycerin is dangerous for life! The smallest half-life (of 3-5 hours) has Viagra, so those who suffer from heart disease can take Viagra strictly prescribed by a doctor. The half-life of Levitra is of 6 hours, of Cialis is 18 h., and it is absolutely contraindicated for patients taking
nitroglycerin;

The effect on color perception

Cause changes in vision is a priority of Viagra. Cialis and Levitra do not have such side effect. At works requiring attention it is not worth to take Viagra.

In diabetes is always disturbed metabolism. The absorption of drugs into the bloodstream deteriorates. By its virtue Levitra is superior to Viagra and Cialis, so its effectiveness in diabetics is higher. Cialis is more secure in use for diabetics, but it works a little bit weaker. Cialis and Viagra, if their action is insufficient or ineffective, can be replaced with Levitra.

Dosage

Viagra contains 50 or 100 mg of active substance. Cialis and Levitra contains 20mg of the active ingredient;

Side effects of the drugs are the same and are quite rare. Levitra is not recommended to use for patients who have deformation of the penis. Cialis is more secure. With the failed intercourse Cialis causes less negative sensations. The problem of choice of drug depends on many factors. For elderly patients is preferred Cialis. With psychogenic erectile dysfunction – Viagra. With metabolic disorders – Levitra. Choose the right product – it the most important step in the treatment of erectile dysfunction.

What is a “generic”?

Generic is a complete analog of an official brand. Often in pharmacies you can hear the answer “We do not have such a drug, but there is an analog” and they give you a preparation the composition of which is not different from the ordered one, and mostly have a similar name but is made by another firm. This is generic.

What is the difference from the original?

The main difference of the generic preparation from the original is the name on the box, besides that often this name is consonant with the name of the original brand. This is due to the fact that the trade name (brand name) of the original product is registered and its use is prohibited to other manufactures. Also can be different the package design, but the composition of generic and original drug is completely identical (generic has the same active substance as the original preparation).

Where are produced generics?

Generics produce pharmaceutical companies in different countries. For example, in India are located ones of the largest pharmaceutical companies, that are involved in the production of generics. Also, some manufacturers of original drugs also produce their own generic drugs because they do not want to lose a profit.

Most often you can find in pharmacies generic drugs for general use. But with generic medicines for erectile dysfunction, everything is more complicated. They do exist, but their presence in pharmacies do not like companies holders of the trade names of these drugs and they are trying to legally prevent the appearance of any cheaper analogue of narrow group of drugs. This problem is particularly spread in the United States, where increase in prices for drugs is strongly lobbied in US Parliament by pharmaceutical companies.

Will there be erection problems after consuming medications?

Modern drugs have passed many tests and research, and therefore have been approved in all countries. But it is necessary to comply with the instructions for it use, study all contraindications, and do not abuse the drug, however abuse any medication may cause you harm.

Drugs can take healthy people and after the discontinuation of the drug it will not cause any problems in the future. Moreover, preparations for enhancing erection often buy young people of 20-25 years, and also middle-aged men, in order to diversify their sex life.

With excitement (a syndrome of expectation of failure) I lose the erection. These drugs will help?

Many men use drugs to enhance an erection to overcome the so-called “fear of expectations.” In 98% of cases medicine perfectly helps. After several sexual acts, everything comes to norm and lowering the dosage you can completely give up the drug.

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