Oral sildenafil in the treatment of erectile dysfunction. Sildenafil Study Group

Sildenafil > oral sildenafil


These are not all of the possible side effects of sildenafil.

  • Women are generally not treated with sildenafil for sexual arousal.
  • Research on sildenafil's effects on women is ongoing.
  • Use in women should only occur under medical supervision.

Have allergies to sildenafil, Viagra, Revatio, Vybrique, or any of the ingredients in the sildenafil formulation you are taking Take other medicines for pulmonary arterial hypertension, such as riociguat (Adempas) Take other medicines for pulmonary arterial hypertension, such as riociguat (Adempas) Take other medicines that lower your blood pressure, such as nitroglycerin, isosorbide dinitrate, isosorbide mononitrate, and some recreational drugs that also contain nitrates, such as "poppers".

What happens if I miss a dose?

Sildenafil 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. Sudden vision loss in one or both eyes can be a sign of a serious eye problem called non-arteritic anterior ischemic optic neuropathy (NAION). Stop taking sildenafil and call your healthcare provider right away if you havesudden vision loss in one or both eyes. Some people may also have ringing in their ears (tinnitus) or dizziness.

Why Choose Sildenafil Drops?

If you have these symptoms, stop taking sildenafil and contact a doctor right away. In addition, heart attack, stroke, irregular heartbeats, and death have happened rarely in people taking sildenafil. Most, but not all, of these people had heart problems before taking this medicine. It is not known if sildenafil caused these problems. Tell all your healthcare providers that you take sildenafil. To make sure sildenafil is safe for you, tell your healthcare provider about all your medical conditions, including if you have: Or have had heart problems such as a heart attack, irregular heartbeat, angina, chest pain, narrowing of the aortic valve, or heart failure Had heart surgery within the last 6 months Low blood pressure, or high blood pressure that is not controlled A physical deformity of the penis (such as Peyronie's disease) Been told you should not have sexual intercourse for health reasons and you are a male Had an erection that lasted for more than 4 hours Problems with your blood cells, such as sickle cell anemia, multiple myeloma, or leukemia Retinitis pigmentosa, a rare genetic (runs in families) eye disease Ever had severe vision loss, including an eye problem called non-arteritic anterior ischemic optic neuropathy (NAION) Kidney problems or are having kidney dialysis Are pregnant or intending to become pregnant (for patients with PAH) Are breastfeeding or intending to breastfeed (for patients with PAH).

Product Dosage Quantity + Bonus Price
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Sildenafil for ED is not approved for males <18 years old. Sildenafil is not expected to harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant. Women with pulmonary arterial hypertension should not stop taking sildenafil without talking to their doctor if they discover they are pregnant. It is not known whether sildenafil passes into breast milk or if it could harm a nursing baby.

Brand Name Manufacturer Typical Dosage Form Price Range (USD) Notes
Viagra Pfizer 25, 50, 100 mg $10-$20 per pill Most well-known sildenafil brand
Revatio Pfizer 20 mg (for PAH) Varies Approved for pulmonary hypertension
Sildenafil Sandoz Sandoz (Novartis) 50, 100 mg Lower cost option Generic version
Kamagra Ajanta Pharma 50, 100 mg Lower cost Popular generic alternative

Tell your doctor if you are breastfeeding a baby. Women with pulmonary arterial hypertension should not stop taking sildenafil without talking to their doctor. Take sildenafil oral tablets exactly as your healthcare provider tells you to take it. Your healthcare provider will tell you how much to take and when to take it. Your healthcare provider may change your dose if needed. You may take sildenafil between 30 minutes to 4 hours before sexual activity if needed. If you take sildenafil after a high-fat meal (such as a cheeseburger and fries), sildenafil may take a little longer to start working.

Overdose/Missed Dose

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Low blood pressure

Alt text editor Show alt text editor right away when adding an image Helps you make sure all your images have alt text. Pronunciation: sil-DEN-a-fil Generic name: sildenafil Brand names: Revatio, Viagra, Vybrique Dosage form: tablets (20 mg; 25 mg, 50 mg, 100 mg), injection (10 mg/12.5 mL), oral suspension (10 mg/mL), oral film (25 mg, 50 mg, 75 mg, 100 mg) Drug classes: Agents for pulmonary hypertension, Impotence medications Sildenafil is used to treat erectile dysfunction (ED) in adult men or pulmonary arterial hypertension (PAH) in adults and children, depending on the brand or formulation. Sildenafil tablets (25 mg, 50 mg, 100 mg; Viagra, generic) and sildenafil oral film (25 mg, 50 mg, 75 mg, 100 mg; Vybrique) are used for ED. Sildenafil tablets (20 mg; Revatio, generic), sildenafil oral suspension (Revatio, generic), and sildenafil injection (Revatio, generic) are used for PAH. Sildenafil is a phosphodiesterase type 5 (PDE5) inhibitor, which breaks down cyclic GMP and enhances nitric oxide (NO) -mediated smooth muscle relaxation. If you accidentally take too much sildenafil, call your doctor or go to the nearest hospital emergency room right away. Sildenafil can help you have an erection when sexual stimulation occurs. An erection will not occur just by taking a pill. 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.

  • Sildenafil is used to treat erectile dysfunction and pulmonary hypertension.
  • It belongs to the class of phosphodiesterase inhibitors.
  • Oral sildenafil should be taken about 30-60 minutes before activity.

You could be having a serious side effect of sildenafil. Take sildenafil oral film (Vybrique) exactly as your healthcare provider tells you to take it.

This article is cited by

In erectile dysfunction (ED), this increases blood flow to penile tissue, facilitating an erection. In pulmonary arterial hypertension (PAH), it dilates pulmonary vessels by the same mechanism, reducing pulmonary blood pressure and improving exercise capacity. Sildenafil first gained FDA approval on March 27, 1998. Do not take sildenafil 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.

Lipid-based nanoparticles in the treatment of erectile dysfunction

Some medicines can cause unwanted or dangerous effects when used with sildenafil. Tell your doctor about all your current medicines, especially riociguat (Adempas). The most common side effects of sildenafil tablets for ED are: Abnormal vision, such as changes in color vision (such as having a blue color tinge) andblurred vision The most common side effects of sildenafil oral film for ED are: Abnormal vision, such as changes in color and blurred vision The most common side effects of sildenafil tablets/ oral suspension, and injection for PAH are: Sildenafil can cause the following serious side effects. If you have an erection that lasts more than 4 hours, get medical help right away. If it is not treated right away, priapism can permanently damage your penis. Your healthcare provider will tell you how much sildenafil to take and when to take it. Take sildenafil by mouth about 1 hour before sexual activity. You may take sildenafil between 30 minutes and 4 hours before sexual activity if needed. Do not take more than once a day. If you take too much sildenafil, call your healthcare provider or go to the nearest hospital emergency room right away. Do not remove the film from the pouch unless ready for immediate use.

Record Status

If you need emergency medical care for a heart problem, it will be important for your healthcare provider to know when you last took sildenafil. Stop sexual activity and get medical help right away if you get symptoms such as chest pain, dizziness, or nausea during sex. Sexual activity can put an sildenafil citrates extra strain on your heart, especially if your heart is already weak from a heart attack or heart disease. Sildenafil does not protect you or your partner from getting sexually transmitted diseases, including Human Immunodeficiency Virus (HIV). Sildenafil may cause low blood pressure, which may cause you to feel faint or dizzy.

New England Journal of Medicine

Lie down if you feel faint or dizzy. Tell your doctor if you get more short of breath after you start sildenafil. More shortness of breath than usual may be due to your underlying medical condition. Do not take Viagra while also taking Revatio. Tell your healthcare provider if you have any side effect that bothers you or does not go away. Do not handle the oral film with wet hands. See the Vybrique Prescribing Information for more information about how to take sildenafil oral film.

Database of Abstracts of Reviews of Effects (DARE): Quality-assessed Reviews [Internet].

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Recreational use

The institutional subscription may not cover the content that you are trying to access. If you believe you should have access to that content, please contact your librarian. For librarians and administrators, your personal account also provides access to institutional account management. Here you will find options to view and activate subscriptions, manage institutional settings and access options, access usage statistics, and more. Choose an option Alt text (alternative text) helps when people can’t see the image or when it doesn’t load. Take sildenafil exactly as it was prescribed for you.

Dose (mg) Typical Usage Frequency Time to Onset (minutes) Duration of Effect (hours) Notes
50 Once or twice daily 30-60 4-6 Starting dose for most patients
100 Once daily 30-60 4-6 Common for moderate ED
25 As needed 30-60 4-6 For mild ED
10 As needed 30-60 4-6 Lower dose option

Follow all directions on your prescription label and read all medication guides or instruction sheets. Do not change your dose or stop taking this medicine on your own. Take sildenafil tablet or oral suspension 3 times a day, about 4 to 6 hours apart.