Viagra is prescription drug originally manufactured by the pharmaceutical company, Pfizer. It was formulated to treat erectile dysfunction in men. The main ingredient of Viagra is Sildenafil, a drug category known to function as PDE 5 inhibitor. The effects of the drug were first discovered by scientists that were developing a treatment to increase and improve blood flow. The side effect from the drug they were testing was improved erections. Viagra works by enhancing the relaxation of the muscles going to the penile region, resulting in increased blood flow due to sexual stimulation. The creation and release of Viagra paved the way to a more open discussion about issues related to erectile dysfunction or impotence as well as other sexual issues in men.

What is Viagra indicated for?

Viagra essentially treats erectile dysfunction, a common problem that a lot of men are experiencing as they age. Erectile dysfunction is known to be due to physical and psychological causative factors. Some men fail to get erections at some point in their lives. However, if a man regularly fail to achieve an erection, then this condition is likely to be diagnosed as impotence.

Causes of erectile dysfunction:

  • diabetes
  • high blood pressure
  • high cholesterol levels

Psychological causes of ED are as follows:

  • anxiety
  • depression
  • exhaustion

Can Viagra be purchased online?

There are numerous websites where men can purchase Viagra. Unfortunately, a lot of these online pharmacies are neither legitimate nor licensed. This means that taking Viagra purchased online may cause harm or have no positive effects altogether. It is then advised that prior to purchasing medication online, it is best to check whether the service you are using has been approved and verified by the general medical council and has been thoroughly reviewed by the Care Quality Commission. In addition, it is best to be reminded that Viagra is a prescription-only medication. Websites that sell Viagra without coordination with a doctor is considered fraudulent.

If you still decide on purchasing Viagra online, it is recommended to purchase exclusively from online pharmacies that are verified and credentialed by PharmacyChecker.com and other organizations that issue credentials to online selling shops. Make sure to purchase before doing your extensive research on the website. Read as many reviews from first-hand customers to make sure you are buying from a legitimate Viagra seller.

Who made Viagra?

Viagra is being manufactured and distributed by Pfizer. Although these days, there is a rising increase in the number of companies that manufacture generic Viagra. There is no difference between the branded and generic Viagra. The only difference is that generic Viagra is cheaper than the Viagra tablets being made by Pfizer.

Can men take more than one Viagra?

It is highly recommended that male users follow the ideal dosage and frequency as prescribed by doctors. A simple rule of thumb that Viagra users need to follow is that the tablet should never be used more than once in 24 hours.

Viagra affects the flow of blood to the penis. This is a major change in normal body function that overdosing on the medication can lead to serious and deadly blood pressure issues, including heart attack and stroke. If the treatment is simply not working for you, it is best to seek the expertise of a doctor than remedy the problem right away by taking an extra dose of Viagra.

Who can take Viagra?

Viagra is ideal for men who are having difficulties achieving an erection. A common misconception is that Viagra should only be taken by older men, but in fact it can be administered in men between the ages of 19-87 years old. There are of course men who take Viagra for recreational purposes. Although there are no known serious side effects among healthy men who take Viagra, those who suffer from other medical conditions may find themselves suffering from serious side effects as a result of taking Viagra.

An increasing number of women are now taking Viagra but not as treatment for sexual dysfunction. Studies reveal that women who take Viagra find the medication as beneficial as they clam that it boosts libido and sexual arousal in women.

Viagra Dosage

Viagra or Sildenafil is only available in tablet form. To date, Viagra comes in 25 mg, 50 mg, and 100 mg doses.

  • To treat erectile dysfunction, the recommended Viagra dose is 50 mg that should be taken 60 minutes before planned sexual activity. Men may also take the medication 30 minutes to four hours prior to sexual stimulation. It should never be taken more than once daily, unless ordered by the doctor.
  • Dosage can be adjusted upward to a maximum of 100 mg or lowered down to 25 mg.
  • People over 65 years old as well as those who suffer from liver and kidney diseases should only be given a dose of 25 mg daily.
  • For patients taking ritonavir or Norvir and other prescription drugs for treatment of HIV, the only recommended dose is 25 mg before sexual intercourse. The maximum dose may only be taken within a 48-hour period.
  • For male users who are taking sildenafil or Revatio for pulmonary hypertension, the recommended dose is 20 mg three times a day to be taken four to six hours apart. The Food and Drug Administration has yet to approve Revatio for children younger than 18 years.

What are the signs and symptoms of Viagra Overdose?

If you have taken Viagra exceeding prescribed dose and frequency, it is best to call poison control center right away or call emergency medical services.

The signs and symptoms of Viagra overdose are as follows:

  • shortness of breath
  • nausea
  • chest pain
  • irregular heartbeat
  • loss of hearing and vision
  • dizziness
  • fainting

It is advised to take Viagra only when prescribed by the doctor. If you take Viagra recreationally, the drug may not deliver the desired effects or you may experience allergic reaction if you have known hypersensitivity issues with sildenafil or nitrates.