Viagra (Sildenafil) Side Effects

Like every other drug, Viagra can cause certain side events, but not necessarily everyone gets them. The side effects that have been reported so far in association with Viagra use range from minor to mild and are short in their duration.

Uncommon Serious Viagra Side Effects

Discontinue the use of Viagra if you experience any of the following alarming symptoms:

  • Allergic reactions (uncommon, occurring in up to 1 out of 100 patients): symptoms include unexpected wheezing, breathing difficulty, dizziness, swelling of eyelids, face, lips or neck.
  • Pain in the chest. If you experience this side event during or after the sexual act: get in a half-sitting position and try to relax. Do not take nitrate-based drugs for chest pain while using Viagra.
  • Prolonged and sometimes painful erections – rare (can occur in up to 1 in 1,000 drug users). If you experience such unnaturally prolonged erection that lasts during 4 hours and more and / or causes painful sensation, contact your doctor immediately.
  • Unexpected decrease or loss of eyesight.
  • Serious skin reaction – uncommon. Symptoms include serious irritation, peeling and swelling of the skin, blisters in the mouth, genitals and in the eye area, fever.
  • Cramps – rare.

Other Side Effects Of Viagra

Very common side effects (occurring in more than 1 out of 10 users): headache.

Common side effects of Viagra (occurring in more than 1 out of 10 users): nausea, flushing of the face or in the entire body, reddening of the face, indigestion, alternated color perception, blurred vision, other problems associated with visual perception, nasal discharge and dizziness.

Less common side effects of Viagra (can occur in up to 1 out of 100 users): vomiting, skin rash, eye irritation, bloodshot eyes / reddening of the eyes, smarting sensation in the eyes, sensitivity to light, watery eyes, heart palpitations, increased heart rate, high blood pressure, low blood pressure, pain in the muscles (myalgia), fatigue, sleepiness, decreased sensory ability, giddiness, ringing in the ears, dryness of the mouth, blocked or rheumy nose, inflammation of the nasal lining (symptoms can include, among others, runny nose, sneezing and nasal discharge), pain in the upper part of the stomach, gastroesophageal reflux syndrome (symptoms may include, among others, heartburn), presence of blood in urine, pain in arms or legs, nasal bleeding and flushing.

Rare Viagra symptoms (can occur in up to 1 out of 1,000 patients): fainting, stroke, heart attack, irregular heartbeat, temporary drop in brain blood pressure, choking sensation in the throat, numbness of the mouth, bleeding in the back parts of the eyes, double vision, small dots or spots in the vision field, unusual sensation in the eyes or in the eye sockets, seeing halo to light sources, dilated pupils, discoloration of eye whites, bleeding in the penis, blood in semen, dryness of the nose, swelling of nasal lining, light-headedness, sudden reduction or loss of hearing.

Since the drug was launched on the market and started to be used by patients there have been observed several cases of unstable angina (a type of heart problem) with eventual deaths. It is noteworthy to point out that most of the men of those reported cases (but not all of them) had had history of heart disease before taking the drug. It is therefore impossible to say with certainty that those cases were connected with the use of Viagra.

Minimizing Viagra Side Effects

In order to avoid developing adverse side effects while taking Viagra it is recommended to follow a few simple rules:

Dosage.

Always follow your prescriber´s recommendations in everything concerning dosage. Start with the minimal dose and see if it works; if not, ask your doctor to increase it by no more than one minimal step (25 mg). It is important to keep in mind that the longer you continue with Viagra therapy, the better your response is, so do not hurry to increase sildenafil dose after one Viagra experience that did not meet your expectations.

Side effect intensity

The same is true for immunity to side events which improves over continued use of sildenafil. The longer you take Viagra, the fewer side effects you will experience, and the milder they will be in their nature

Follow instructions

Be particular about following manufacturer´s instruction in everything that concerns drug compatibility. Be careful with alcohol consumption, especially if you are in risk group because of cardiac condition.

Keep general health checkups

Monitor your overall health condition, especially if you are prone to any chronic diseases that can accentuate your susceptibility to the drug´s side effects.