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Viagra Generic

Viagra is used when treating male erection problems. Take it orally with a glass of water. The dose is usually taken 1 hour before sexual activity.

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Viagra Soft

Sildenafil Soft tablets are equivalent to the regular Sildenafil Citrate. This medication is also used for the treatment of male erection problems. Soft tabs are directly absorbed into the bloodstream, as a result they require a significant

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Viagra Professional

Viagra Professional is mostly used for the treatment of erectile dysfunction (impotency) for men and also for pulmonary arterial hypertension treatment.

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Brand Viagra

Brand Viagra (Viagra®) is used for the treatment of male erection problems. Take it orally with a glass of water. The dose is usually taken 1 hour before sexual activity.

Information from site drugs.com

http://www.drugs.com/viagra.html

What is Viagra?

Viagra (sildenafil) relaxes muscles found in the walls of blood vessels and increases blood flow to particular areas of the body.

Viagra is used to treat erectile dysfunction (impotence) in men. Another brand of sildenafil is Revatio, which is used to treat pulmonary arterial hypertension and improve exercise capacity in men and women.

Do not take Viagra while also taking Revatio, unless your doctor tells you to.

Important information

Some medicines can cause unwanted or dangerous effects when used with Viagra. Tell your doctor about all your current medicines, especially riociguat (Adempas).

Do not take Viagra if you are also using a nitrate drug for chest pain or heart problems, including nitroglycerin, isosorbide dinitrate, isosorbide mononitrate, and some recreational drugs such as "poppers". Taking sildenafil with a nitrate medicine can cause a sudden and serious decrease in blood pressure.

Contact your doctor or seek emergency medical attention if your erection is painful or lasts longer than 4 hours. A prolonged erection (priapism) can damage the penis.

Stop using Viagra and get emergency medical help if you have sudden vision loss.

Before taking this medicine

You should not use Viagra if you are allergic to sildenafil, or:

  • if you take other medicines to treat pulmonary arterial hypertension, such as riociguat (Adempas).

Do not take Viagra if you are also using a nitrate drug for chest pain or heart problems. This includes nitroglycerin, isosorbide dinitrate, and isosorbide mononitrate. Nitrates are also found in some recreational drugs such as amyl nitrate or nitrite ("poppers"). Taking Viagra with a nitrate medicine can cause a sudden and serious decrease in blood pressure.

To make sure Viagra is safe for you, tell your doctor about your other medical conditions, especially:

  • heart disease or heart rhythm problems, coronary artery disease;

  • a recent history (in the past 6 months) of a heart attack, stroke, or congestive heart failure;

  • high or low blood pressure;

  • liver or kidney disease;

  • a blood cell disorder such as sickle cell anemia, multiple myeloma, or leukemia;

  • a bleeding disorder such as hemophilia;

  • a stomach ulcer;

  • retinitis pigmentosa (an inherited condition of the eye);

  • a physical deformity of the penis (such as Peyronie's disease); or

  • if you have been told you should not have sexual intercourse for health reasons.

Viagra can decrease blood flow to the optic nerve of the eye, causing sudden vision loss. This has occurred in a small number of people taking sildenafil, most of whom also had heart disease, diabetes, high blood pressure, high cholesterol, or certain pre-existing eye problems, and in those who smoked or were over 50 years old. It is not clear whether sildenafil is the actual cause of vision loss.

Viagra is not expected to harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant.

It is not known whether sildenafil passes into breast milk or if it could harm a nursing baby. Tell your doctor if you are breast-feeding a baby.

Do not give Viagra to anyone under 18 years old without medical advice.

How should I take Viagra?

Take Viagra exactly as it was prescribed for you. Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended.

Viagra is usually taken only when needed, 30 minutes to 1 hour before sexual activity. You may take it up to 4 hours before sexual activity. Do not take Viagra more than once per day.

Viagra can help you have an erection when sexual stimulation occurs. An erection will not occur just by taking a pill. Follow your doctor's instructions.

During sexual activity, if you become dizzy or nauseated, or have pain, numbness, or tingling in your chest, arms, neck, or jaw, stop and call your doctor right away. You could be having a serious side effect of Viagra.

Store at room temperature away from moisture and heat.

What happens if I miss a dose?

Since Viagra is used as needed, you are not likely to miss a dose.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

What should I avoid while taking Viagra?

Drinking alcohol with this medicine can cause side effects.

Grapefruit and grapefruit juice may interact with sildenafil and lead to unwanted side effects. Avoid the use of grapefruit products while taking Viagra.

Avoid using any other medicines to treat impotence, such as alprostadil or yohimbine, without first talking to your doctor.

Viagra side effects

Get emergency medical help if you have signs of an allergic reaction to Viagra: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop taking Viagra and get emergency medical help if you have:

  • heart attack symptoms--chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating;

  • vision changes or sudden vision loss; or

  • erection is painful or lasts longer than 4 hours (prolonged erection can damage the penis).

Call your doctor at once if you have:

  • ringing in your ears, or sudden hearing loss;

  • irregular heartbeat;

  • swelling in your hands, ankles, or feet;

  • shortness of breath;

  • seizure (convulsions); or

  • a light-headed feeling, like you might pass out.

Common Viagra side effects may include:

  • flushing (warmth, redness, or tingly feeling);

  • headache, dizziness;

  • abnormal vision (blurred vision, changes in color vision)

  • stuffy nose;

  • muscle pain, back pain; or

  • upset stomach.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

See also: Side effects (in more detail)

Viagra dosing information

Usual Adult Dose for Erectile Dysfunction:

Initial dose: 50 mg orally once a day, as needed, 1 hour prior to sexual activity
Maintenance: 25 to 100 mg orally once a day, as needed, 1 hour prior to sexual activity

Comments: This drug may be taken anywhere from 30 minutes to 4 hours before sexual activity.

Use: Treatment of erectile dysfunction

Usual Geriatric Dose for Erectile Dysfunction:

Initial dose: 25 mg orally once a day 1 hour prior to sexual activity

Use: Treatment of erectile dysfunction

What other drugs will affect Viagra?

Do not take Viagra with similar medications such as avanafil (Stendra), tadalafil (Cialis) or vardenafil (Levitra). Tell your doctor about all other medications you use for erectile dysfunction.

Tell your doctor about all your current medicines and any you start or stop using, especially:

  • an antibiotic such as clarithromycin, erythromycin, or telithromycin;

  • antifungal medicine such as ketoconazole or itraconazole;

  • medicine to treat HIV/AIDS, such as atazanavir, indinavir, ritonavir, or saquinavir; or

  • drugs to treat high blood pressure or a prostate disorder.

This list is not complete. Other drugs may interact with sildenafil, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed in this medication guide

Note: This page contains side effects data for the generic drug sildenafil. It is possible that some of the dosage forms included below may not apply to the brand name Viagra.

Common side effects of Viagra include headache, dyspepsia, visual disturbance, and flushing. Other side effects include nasal congestion. See below for a comprehensive list of adverse effects.

For the Consumer

Applies to sildenafil: oral powder for suspension, oral tablet

Other dosage forms:

As well as its needed effects, sildenafil (the active ingredient contained in Viagra) may cause unwanted side effects that require medical attention.

If any of the following side effects occur while taking sildenafil, check with your doctor immediately:

Less common
  • Bladder pain
  • burning feeling in the chest or stomach
  • burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
  • cloudy or bloody urine
  • dizziness
  • increased frequency of urination
  • indigestion
  • pain on urination
  • stomach upset
  • tenderness in the stomach area
Rare
  • Abnormal vision
  • anxiety
  • behavior change similar to drunkenness
  • bleeding of the eye
  • blurred vision
  • bone pain
  • breast enlargement
  • chest pain
  • chills
  • cold sweats
  • confusion
  • convulsions (seizures)
  • cool and pale skin
  • deafness or hearing loss
  • decrease in amount of urine or the frequency of urination
  • decreased vision
  • difficulty in concentrating
  • dizziness or lightheadedness, especially when getting up suddenly from a lying or sitting position
  • double vision
  • drowsiness
  • dry eyes
  • dry mouth
  • dryness, redness, scaling, or peeling of the skin
  • excessive hunger
  • eye pain
  • fainting or faintness
  • fast, irregular, or pounding heartbeat
  • feeling of something in the eye
  • fever or chills
  • headache (severe or continuing)
  • increase in the size of the pupil
  • increased sweating
  • increased thirst
  • lower back or side pain
  • migraine headache
  • nausea (severe or continuing)
  • nervousness
  • nightmares
  • numbness of the hands
  • painful, swollen joints
  • prolonged, painful erection of penis
  • redness, burning, or swelling of the eyes
  • redness, itching, or tearing of the eyes
  • restless sleep
  • seeing shades of colors differently than before
  • sensitivity to light
  • shakiness
  • skin lesions with swelling
  • skin paleness
  • skin rash, hives, or itching
  • skin ulcers
  • slurred speech
  • sore throat
  • sudden weakness
  • swelling of the face, hands, feet, or lower legs
  • trouble breathing
  • twitching of the muscles
  • unusual feeling of burning or stinging of the skin
  • unusual tiredness or weakness
  • vision changes
  • vision loss, temporary
Incidence not known
  • Blindness

Some sildenafil side effects may not need any medical attention. As your body gets used to the medicine these side effects may disappear. Your health care professional may be able to help you prevent or reduce these side effects, but do check with them if any of the following side effects continue, or if you are concerned about them:

More common
  • Aches or pains in the muscles
  • bloody nose
  • diarrhea
  • difficult or labored breathing
  • flushing
  • headache
  • pain or tenderness around the eyes and cheekbones
  • redness of the skin
  • sneezing
  • stomach discomfort following meals
  • stuffy or runny nose
  • trouble sleeping
  • unusually warm skin
Rare
  • Abdominal or stomach pain
  • abnormal dreams
  • anxiety
  • clumsiness or unsteadiness
  • cough
  • diarrhea or stomach cramps (severe or continuing)
  • difficulty in swallowing
  • ear pain
  • increased amount of saliva
  • increased skin sensitivity
  • lack of coordination
  • loss of bladder control
  • mental depression
  • nausea
  • numbness or tingling of the hands, legs, or feet
  • rectal bleeding
  • redness or irritation of the tongue
  • redness, soreness, swelling, or bleeding of the gums
  • ringing or buzzing in the ears
  • sensation of motion, usually whirling, either of one's self or of one's surroundings
  • sexual problems in men (continuing), including failure to experience a sexual orgasm
  • sleepiness
  • sores in the mouth and on the lips
  • tense muscles
  • trembling and shaking
  • vomiting
  • waking to urinate at night
  • worsening of asthma

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