In the US, the most popular prescription drugs for the treatment of the reproductive function disorders in men are Viagra, Levitra and Cialis. They effectively contribute to the achievement and maintenance of high-quality hard erection, which is required for a full sexual intercourse.
The composition of these drugs for the potency improvement contains different active ingredients: Sildenafil (Viagra), Vardenafil (Levitra) and Tadalafil (Cialis). Despite this, they have similar therapeutic effect, and the efficacy of these agents varies to only a small extent.
Besides, in hypersensitivity to one of these three active ingredients, men may use the drug with another active agent. It is very convenient for patients, genetically predisposed to drug allergy.
These drugs help men of any age category get firmer erections back, thus enhancing the pleasure of sexual activity. They are highly effective in the treatment of reproductive dysfunction, caused by one or more disorders:
Cialis, Viagra and Levitra also help to maintain a firm erection in men with medication dysfunction of the reproductive function, caused by the antidepressants, tranquilizers, hormone pills, antihypertensive, or antihistamine drugs, and narcotic substances.
Clinical studies confirm that erection becomes more solid and strong, when a man is going through the treatment with Viagra, Cialis or Levitra pills. Furthermore, these drugs have a high safety profile and are convenient to use.
The treatment method of the reproductive function disorders must be individualized for each man, depending on the underlying cause of the disease. This approach helps to increase the effectiveness of Viagra pills, Cialis or Levitra, and extend a firm erection for a long time.
These drugs are not effective only when the inability to achieve or maintain a firm erection is caused by anatomical damage or deformation of genitals. Such structural defects include:
- Peyronie's disease;
- fracture of the penis;
- congenital curvature of the penis;
Cialis, Levitra and Viagra are vasoactive drugs. They contribute to the improvement of blood circulation in cavernous tissues of genitals. This leads to saturation of the penis with blood, oxygen, and chemical substances, which are required for maintaining a firm erection.
One of these important substances is guanylatecyclase. It helps maintain a firm erection for a long time. Viagra, Cialis and Levitra inhibit the PDE5 synthesis, which destroys guanylate cyclase in the erectile tissues of the penis.
Due to this effect of these drugs, guanylate cyclase is permanently stored in the corpora cavernosa of the penis during sexual arousal, thus helping to maintain a firm erection. However, these drugs have no therapeutic effect without a pre-stimulation.
These vasoactive drugs contribute to the vascular tone improvement. A firm erection occurs within about 30 minutes and can last up to five hours, when a man is sexually aroused after using Levitra or Viagra tablets.
The therapeutic effect of Cialis can last even longer from one to one and a half days. This medication can be taken daily to achieve constant solid erections. Thus, it is convenient for men, who do not like to plan ahead for the upcoming sexual intercourse.
A healthy blood flow to the genitals is required for achieving a strong firm erection. The therapeutic effect of Viagra, Cialis and Levitra is aimed at the penis muscles relaxation, which helps to improve blood circulation in it, and to provide a firm erection.
For the treatment of psychogenic reproductive dysfunction, Viagra, Cialis or Levitra pills are usually prescribed in conjunction with advice from a psychologist or a sexologist. This complex therapy helps:
- improve the quality of erectile response;
- better control the hardness of erections;
- increase the male sexual confidence;
- eliminate the suspense of sexual failure syndrome;
- restore the ability to perform full-fledged sexual acts;
Adhering to a healthy lifestyle and a proper diet, abstinence from alcohol, nicotine or drugs may also increase the effectiveness of these pills for potency improvement. Following these simple tips will help men to achieve a firm erection and maintain it for long.
Drugs that inhibit PDE5 may rarely cause indigestion, flushing, headache, nasal congestion, dizziness, nausea, rash, back pain, and myalgia. They are also contraindicated in young men less than 18 years of age.
The adult males are recommended to use Viagra, Levitra or Cialis as needed, about half an hour before a sexual intercourse. This helps reduce the risk of adverse reactions and significantly improves the quality and hardness of an erection during sexual activity.
Proper use of vasoactive drugs helps adult and older men to return a strong firm erection. Recommended daily therapeutic doses of these drugs for the reproductive function improvement are:
- Cialis - 10 mg
- Viagra - 50 mg
- Levitra - 10 mg
These drugs do not affect the sensitivity of the penis during sexual activity, or at the time of ejaculation. However, they help to effectively maintain a qualitative firm erection during the time, required for starting and finishing a sexual intercourse.