Place the medication in a safe location – one that is up and away and out of their sight and reach. Dispose of unneeded medications in a way so that pets, children, and other people cannot take them.

12.1 Mechanism of Action

Most, but not all, of these people had heart problems before taking sildenafil. It is not known whether these events were caused by sildenafil, sexual activity, heart disease, or a combination of these and other causes. Talk to your doctor about the risks of taking sildenafil. Some patients experienced a sudden decrease or loss of hearing after they took sildenafil or other medications that are similar to sildenafil. It is not 25 mg viagra known if the hearing loss was caused by the medication.

Is Viagra a blood thinner?

If you experience a sudden loss of hearing, sometimes with ringing in the ears or dizziness, while you are taking sildenafil, call your doctor immediately. If you are taking sildenafil (Viagra) for erectile dysfunction, do not take any more doses of sildenafil (Viagra) or similar medications such as tadalafil (Cialis) or vardenafil (Levitra) until you talk to your doctor. If you are taking sildenafil (Liqrev, Revatio) for PAH, do not stop taking your medication until you talk to your doctor. Call your doctor if you have any unusual problems while you are taking this medication. If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online ( or by phone (1-800-332-1088). Do not flush this medication down the toilet. Talk to your pharmacist about take-back programs in your community. Visit the FDA's Safe Disposal of Medicines website for more information. In case of overdose, call the poison control helpline at 1-800-222-1222. Information is also available online at If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at 911. Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription. Keep a written list of all of the prescription and nonprescription (over-the-counter) medicines, vitamins, minerals, and dietary supplements you are taking. Bring this list with you each time you visit a doctor or if you are admitted to the hospital. You should carry the list with you in case of emergencies.

Product Dosage Quantity + Bonus Price
Viagra Generic100mg120 + 6 Pills149.50€ 142.38€
Viagra Generic150mg10 Pills36.73€ 34.98€
Viagra Soft Tabs100mg120 + 8 Pills232.21€ 221.15€
Viagra Generic150mg30 + 2 Pills72.32€ 68.88€
Viagra Original100mg64 + 4 Pills264.15€ 251.57€
Viagra Oral Jelly100mg10 Sachets46.36€ 44.15€
Viagra Generic150mg360 + 10 Pills423.48€ 403.31€
Viagra Oral Jelly100mg63 + 7 Sachets190.54€ 181.47€
Viagra Generic100mg360 + 10 Pills330.21€ 314.49€
Viagra Generic150mg120 + 8 Pills177.58€ 169.12€

The effects of Viagra (sildenafil) are typically strongest about an hour after consumption, so it is best to take it an hour before sexual activity, though it can be taken up to 4 hours beforehand.

  • Generic versions of Viagra, containing sildenafil, are available in some markets.
  • The price of Viagra can vary depending on brand and dosage.
  • Using illicit or unregulated Viagra is risky and can be dangerous.
  • Viagra’s chemical formula is C22H30N6O4S.
  • It works by relaxing smooth muscle tissue in the penis.
  • Consultation with a doctor is essential before starting therapy.

Viagra helps people with erectile dysfunction achieve and maintain erections by increasing blood flow to the penis during sexual arousal.

Aspect Effect Timeframe Notes
Erection quality Improved After 30 min Enhanced rigidity
Libido Increased (indirect) Within 1 hour May vary among individuals
Perception of endurance No direct effect - May feel more confident
Satisfaction levels Higher reported rates After sex Dependent on other factors

Besides Viagra, other treatments for erectile dysfunction include lifestyle changes like exercise and reducing alcohol, other medications, and therapy for psychological causes. Erectile dysfunction is a common condition that can affect males of any age. Males with this condition are unable to reach or maintain an erection to engage in sexual activity. A lack of blood flow is one cause of erectile dysfunction.

4.1 Nitrates

Also tell your doctor if you or any of your family members have or have ever had an eye disease such as retinitis pigmentosa (an inherited eye condition that causes loss of vision) or if you have ever had sudden severe vision loss, especially if you were told that the vision loss was caused by a blockage of blood flow to the nerves that help you see. if you are a woman and you are taking sildenafil to treat PAH, tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. If you become pregnant while taking sildenafil, call your doctor. if you are having surgery, including dental surgery, tell your doctor or dentist that you are taking sildenafil. if you are taking sildenafil to treat erectile dysfunction, tell your doctor if you have ever been advised by a healthcare professional to avoid sexual activity for medical reasons or if you have ever experienced chest pain during sexual activity.

Side effect details

Sexual activity may be a strain on your heart, especially if you have heart disease. If you experience chest pain, dizziness, or nausea during sexual activity, call your doctor immediately and avoid sexual activity until your doctor tells you otherwise. tell all your healthcare providers that you are taking sildenafil. If you ever need emergency medical treatment for a heart problem, the healthcare providers who treat you will need to know when you last took sildenafil. Talk to your doctor about eating grapefruit and drinking grapefruit juice while taking this medicine. Viagra can help stimulate blood flow to the penis and help people with the condition maintain an erection. This article discusses how long Viagra lasts, what it is for, and alternative methods of treating erectile dysfunction.

5.7 Combination with other PDE5 Inhibitors or Other Erectile Dysfunction Therapies

If you are taking sildenafil for erectile dysfunction, you are unlikely to miss a dose since this medication is taken as needed, not on a regular dosing schedule. If you are taking sildenafil for PAH, take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one. numbness, burning, or tingling in the arms, hands, feet, or legs pain in muscles, back, arms, or legs changes in color vision (seeing a blue tinge on objects or having difficulty telling the difference between blue and green) sudden severe loss of vision (see below for more information) erection that is painful or lasts longer than 4 hours rash; itching; hives; difficulty breathing or swallowing; swelling of the eyes, face, throat, tongue, or lips Some patients experienced a sudden loss of some or all of their vision after they took sildenafil or other medications that are similar to sildenafil.

Does Viagra help with premature ejaculation?

The vision loss was permanent in some cases. It is not known if the vision loss was caused by the medication. If you experience a sudden loss of vision while you are taking sildenafil, call your doctor immediately. Do not take any more doses of sildenafil or similar medications such as tadalafil (Cialis) or vardenafil (Levitra) until you talk to your doctor. There have been reports of heart attack, stroke, irregular heartbeat, bleeding in the brain or lungs, high blood pressure, and sudden death in men who took sildenafil for erectile dysfunction. As the concentration of Viagra in the blood typically peaks 60 minutes after taking the drug, the effects are strongest around this time.

Side effects

Your doctor may need to change the doses of your medications or monitor you carefully for side effects. you should know that sildenafil is available under the brand names Liqrev, Revatio, and Viagra. You should only be treated with one of these products at a time. The following nonprescription or herbal products may interact with sildenafil: cimetidine (Tagamet HB), St. John's wort.

Is there a “female Viagra”?

Be sure to let your doctor and pharmacist know that you are taking these medications before you start taking sildenafil. Do not start these medications while taking sildenafil without discussing it with your healthcare provider. tell your doctor if you smoke, if you have had heart surgery within the last 6 months, if you have ever had an erection that lasted for more than 4 hours, and if you have recently lost a large amount of body fluids (dehydration). This can happen if you are sick with fever, diarrhea, or vomiting; sweat a lot; or do not drink enough liquids. Also tell your doctor if you have or have ever had pulmonary veno-occlusive disease (PVOD; blockage of veins in the lungs); a stomach ulcer; heart, kidney, or liver disease; a heart attack; heart failure; angina (chest pain); an irregular heartbeat; a stroke; chest pain; high or low blood pressure; high cholesterol; a bleeding disorder; blood circulation problems; blood cell problems such as sickle cell anemia (a disease of the red blood cells), multiple myeloma (cancer of the plasma cells), or leukemia (cancer of the white blood cells); conditions affecting the shape of the penis (e.g., angulation, cavernosal fibrosis, or Peyronie's disease); or diabetes. Therefore, it is best to take Viagra around 1 hour before any sexual activity. However, people can take viagra up to 4 hours before intercourse. When a person takes it orally, the body rapidly absorbs Viagra. The concentration of Viagra in the blood peaks around 30 to 60 minutes after taking the drug. It is possible to start feeling the effects of Viagra at any time during this window.

  • Viagra enhances sexual performance by improving erectile firmness.
  • It is available by prescription and should follow a doctor’s guidance.
  • Viagra does not increase sexual desire, only aids in erection.
  • Alcohol and high-fat meals can reduce Viagra's effectiveness.
  • Heart health should be considered before taking Viagra.
  • It is important to not take more than one tablet per day.

Viagra helps with erectile dysfunction by making it easier to get and maintain an erection. Erectile dysfunction is a common condition that affects an estimated Viagra tablets typically come in 25, 50, or 100 milligram (mg) doses. The effects of Viagra vary for each individual.

Side Effect Frequency Severity Recommended Action
Headache Common Mild Take pain relievers
Flushing Common Mild Stay hydrated
Upset stomach Less common Mild Take with food
Dizziness Less common Mild Avoid driving

People with erectile dysfunction find it difficult During arousal, the arteries leading to the penis expand, allowing more blood to flow through it. The veins leading blood away from the penis also become narrower. The greater blood flow in and restricted blood flow out of the penis cause it to harden, leading to erection. In erectile dysfunction, however, blood flow to the penis can be too low and disrupt the ability to get or maintain an erection. Viagra can only work during sexual arousal.

In case of emergency/overdose

Keep this medication in the container it came in, tightly closed, and out of reach of children. Store the tablets at room temperature and away from excess heat and moisture (not in the bathroom). Store the suspension at room temperature or in a refrigerator, but do not freeze it. Dispose of any unused suspension after 60 days. Keep all medication out of sight and reach of children as many containers are not child-resistant. If a person is not in a state of arousal, Viagra will not be able to cause an erection. There are many other ways to treat erectile dysfunction. There are several other PDE 5 inhibitors that are also Several other drugs have a similar effect to Viagra, such as Cialis or Levitra.

Brand Name Active Ingredient Manufacturer Price Range ($) Availability
Viagra Sildenafil citrate Pfizer 20-50 per pill U.S. and globally
Kamagra Sildenafil citrate Ajanta Pharma 10-35 per pill Online
Sildenafil CT Sildenafil citrate Various 15-40 per pill Online/Pharmacies
Vivanza Vardenafil Menarini 25-60 per pill Europe & Asia