All other trademarks are the property of their respective owners. Viagra® (sildenafil citrate) is prescription medicine used to treat erectile dysfunction (ED). VIAGRA is not for women or children. Please see Full Prescribing Information and Patient Information. Sildenafil (Viagra) is used to treat erectile dysfunction (impotence; inability to get or keep an erection) in men.
| Parameter | Details | Notes |
|---|---|---|
| Absorption | Rapid, starts within 30-60 minutes | Peak plasma levels at 1-2 hours |
| Half-life | Approximately 4 hours | Metabolized mainly in liver |
| Excretion | Mostly via feces, some via urine | Take with caution if kidney/liver issues |
| Food effect | High-fat meals may delay absorption | Best taken on an empty stomach |
Sildenafil (Liqrev, Revatio) is used to improve the ability to exercise in adults (Liqrev, Revatio) and children 1 year of age and older (Revatio) with pulmonary arterial hypertension (PAH; high blood pressure in the vessels carrying blood to the lungs, causing shortness of breath, dizziness, and tiredness). Sildenafil is in a class of medications called phosphodiesterase (PDE) inhibitors. Sildenafil treats erectile dysfunction by increasing blood flow to the penis during sexual stimulation. This increased blood flow can cause an erection.
- Viagra’s patent expired in many countries, leading to generics.
- Overdose symptoms include severe hypotension and visual changes.
- Do not double dose if the first dose does not work.
- Physical activity and mental arousal contribute to its effectiveness.
- Sexual health education can improve medication outcomes.
- Trust only licensed healthcare providers for prescription and advice.
Sildenafil treats PAH by relaxing the blood vessels in the lungs to allow blood to flow easily. If you are taking sildenafil to treat erectile dysfunction, you should know that it does not cure erectile dysfunction or increase sexual desire. Sildenafil does not prevent pregnancy or the spread of sexually transmitted diseases such as human immunodeficiency virus (HIV). Sildenafil comes as a tablet and suspension (liquid) to take by mouth.
Sildenafil for ED
In some patients, the use of VIAGRA with alpha-blockers can lead to a drop in blood pressure or to fainting medicines called HIV protease inhibitors, such as ritonavir (Norvir®), indinavir sulfate (Crixivan®), saquinavir (Fortovase® or Invirase®), or atazanavir sulfate (Reyataz®) some types of oral antifungal medicines, such as ketoconazole (Nizoral®) and itraconazole (Sporanox®) some types of antibiotics, such as clarithromycin (Biaxin®), telithromycin (Ketek®), or erythromycin other medicines that treat high blood pressure VIAGRA contains sildenafil, which is the same medicine found in another drug called REVATIO. REVATIO is used to treat a rare disease called pulmonary arterial hypertension (PAH). VIAGRA should not be used with REVATIO or with other PAH treatments containing sildenafil or any other PDE5 inhibitors (such as Adcirca® [tadalafil]) VIAGRA does not protect against sexually transmitted diseases, including HIV. The most common side effects of VIAGRA: headache; flushing; upset stomach; abnormal vision, such as changes in color vision (such as having a blue color tinge) and blurred vision; stuffy or runny nose; back pain; muscle pain; nausea; dizziness; rash. VIAGRA, REVATIO, and CARDURA are registered trademarks of Viatris Specialty LLC, a Viatris Company. If you are taking sildenafil to treat erectile dysfunction, follow your doctor's directions and the guidelines in this paragraph. Take sildenafil as needed before sexual activity. The best time to take sildenafil is about 1 hour before sexual activity, but you can take the medication any time from 4 hours to 30 minutes before sexual activity.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Viagra Soft Tabs | 100mg | 120 + 8 Pills | 232.21€ 221.15€ | |
| Viagra Generic | 25mg | 120 + 6 Pills | 125.56€ 119.58€ | |
| Viagra Super Active | 100mg | 30 + 6 Pills | 64.09€ 61.04€ | |
| Viagra Generic | 25mg | 60 + 4 Pills | 71.99€ 68.56€ | |
| Viagra Soft Tabs | 100mg | 30 + 4 Pills | 83.06€ 79.10€ | |
| Viagra Generic | 50mg | 270 + 8 Pills | 198.48€ 189.03€ | |
| Viagra Super Active | 100mg | 20 + 4 Pills | 48.05€ 45.76€ | |
| Viagra Soft Tabs | 100mg | 180 + 10 Pills | 314.95€ 299.95€ | |
| Viagra Generic | 50mg | 90 + 6 Pills | 107.37€ 102.26€ | |
| Viagra Soft Tabs | 100mg | 20 Pills | 62.99€ 59.99€ | |
| Viagra Generic | 150mg | 60 + 4 Pills | 111.25€ 105.95€ | |
| Viagra Super Active | 100mg | 120 + 16 Pills | 198.37€ 188.92€ | |
| Viagra Super Active | 100mg | 60 + 8 Pills | 116.84€ 111.28€ | |
| Viagra Generic | 150mg | 360 + 10 Pills | 423.48€ 403.31€ | |
| Viagra Oral Jelly | 100mg | 21 Sachets | 78.66€ 74.91€ | |
| Viagra Generic | 50mg | 180 + 8 Pills | 158.82€ 151.26€ |
Sildenafil usually should not be taken more than once every 24 hours.
6.1 Clinical Trials Experience
Archived from the original on 3 March 2016. {{cite web}}: CS1 maint: deprecated archival service (link) ^ Teva Canada Ltd. v. Pfizer Canada Inc., 2012 SCC 60 at par. "Supreme Court ruling could lead to cheaper versions of Viagra".
Recreational use
Archived from the original on 10 March 2013. "Canadian Supreme court rules Viagra patent invalid". Archived from the original on 11 November 2012. ^ "Viagra patent tossed out by Supreme Court: Decision allows generic versions of drug to be produced". Archived from the original on 18 September 2013.
What are the most common side effects of sildenafil?
^ "Pfizer Canada drops Viagra price after generic versions get Supreme Court green light". Archived from the original on 30 November 2012. Archived from the original on 27 December 2013. "In rare move, Pfizer asks Supreme Court to reconsider ruling that killed Viagra patent". Archived from the original on viagra packaging 5 February 2013. If you have certain health conditions or are taking certain medications, your doctor may tell you to take sildenafil less often. You can take sildenafil with or without food. However, if you take sildenafil with a high-fat meal, it will take longer for the medication to start to work.
How successful was Viagra?
"The Supreme Court of Canada holds Pfizer's Viagra patent invalid". Archived from the original on 20 May 2013. ^ "Actavis Launches Generic Viagra in Europe as Patents Expire". Archived from the original on 29 October 2013. "What Will Happen When Viagra Goes Generic?".
What are the serious side effects of sildenafil?
Archived from the original on 23 April 2011. ^ "Is Viagra about to lose its pulling power in the UK?". Archived from the original on 30 October 2013. Archived from the original on 22 August 2009. Archived from the original on 25 June 2007.
Some side effects can be serious. If you experience any of the following symptoms, call your doctor immediately:
"Viagra from the pharmacist: insight from reclassification in New Zealand". Archived from the original on 17 May 2021. ^ "Generic Viagra developers queue up, but may have to wait". Archived from the original on 28 December 2021. ^ "Approved Viagra copies flood drugstores in Korea". If you are taking sildenafil to treat PAH, you will probably take sildenafil three times a day with or without food. Take sildenafil at around the same cenforce viagra times every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Do not take more or less of it or take it more often than prescribed by your doctor. Shake the liquid well for 10 seconds before each use to mix the medication evenly. Use the oral syringe provided with your medication to measure and take your dose.
- 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.
Follow the manufacturer's directions to use and clean the oral syringe. Do not mix the liquid with other medications or add anything to flavor the medication. If you are taking sildenafil for erectile dysfunction, your doctor will probably start you on an average dose of sildenafil and increase or decrease your dose depending on your response to the medication. Tell your doctor if sildenafil is not working well or if you are experiencing side effects.
What is the impact of ED on men?
Archived from the original on 10 December 2023. ^ "Israeli-made AI exposes international fake Viagra network". ^ "Counterfeit Viagra Pills, Footwear, Belts, Car Emblems and Headphones Worth over $32 Million Seized at the LA/Long Beach Seaport U.S. Customs and Border Protection". Archived from the original on 12 October 2013.
Viagra and herbs and supplements
"Yes, There Is a Way to Get Generic Viagra". Archived from the original on 2 May 2016. "Pfizer Wins Viagra Patent Infringement Case Against Teva Pharmaceuticals". Archived from the original on 11 January 2015. ^ "Pfizer Completes Transaction to Combine Its Upjohn Business with Mylan".
How does sildenafil work (mechanism of action)?
Retrieved 17 June 2024 – via Business Wire. Archived from the original on 17 June 2024. "Viagra patent expires in June, says Brazilian court". Archived from the original on 17 April 2012. ^ "Revatio patent ruled invalid for lack of sound prediction and obviousness". If you are taking sildenafil for PAH, you should know that sildenafil controls PAH but does not cure it. Continue to take sildenafil even if you feel well. Do not stop taking sildenafil without talking to your doctor. Ask your pharmacist or doctor for a copy of the manufacturer's information for the patient. This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.
| Tip | Explanation | Best Practice |
|---|---|---|
| Take on an empty stomach | Food can delay absorption | 1 hour before planned activity |
| Avoid alcohol | Can increase side effects | Limit or avoid before use |
| Follow prescribed dose | Overdose risks | Consult doctor for correct dose |
| Avoid grapefruit juice | Interferes with drug metabolism | Drink water instead |
tell your doctor and pharmacist if you are allergic to sildenafil, any other medications, or any of the ingredients in sildenafil tablet or suspension.
- 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.
Ask your pharmacist for a list of the ingredients.
| Aspect | Effect | Scientific Evidence | Notes |
|---|---|---|---|
| Libido enhancement | Limited evidence | Not FDA-approved | Off-label considerations |
| Vaginal blood flow | Increased blood flow | Some studies show | More research needed |
| Satisfaction levels | Mixed results | Inconclusive | Subjective reports |
| Side effects in women | Similar to men, mild and rare | Limited data | Caution advised |
Some medications should not be taken with sildenafil.
How oral medicines differ
^ "Viagra prescriptions almost triple in a decade". Archived from the original on 1 July 2024. ^ cialis or viagra for women "MHRA reclassifies Viagra Connect tablets to a Pharmacy medicine". ^ "Viagra to be available without prescription in UK". take any medicines called nitrates, often prescribed for chest pain, or guanylate cyclase stimulators like Adempas® (riociguat) for pulmonary hypertension.
If you take more than the recommended amount of Viagra
Your blood pressure could drop to an unsafe level are allergic to sildenafil, as contained in VIAGRA and Revatio®, or any of the ingredients in VIAGRA Discuss your health with your doctor to ensure that you are healthy enough for sex. If you experience chest pain, dizziness, or nausea during sex, seek immediate medical help. an erection that will not go away (priapism). 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 sudden vision loss in one or both eyes.
How can I get Viagra to work?
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 VIAGRA and call your healthcare provider right away if you have any sudden vision loss Some people may also have ringing in their ears (tinnitus) or dizziness. If you have these symptoms, stop taking VIAGRA and contact a doctor right away Before you take VIAGRA, tell your healthcare provider 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 have had heart surgery within the last 6 months have low blood pressure, or high blood pressure that is not controlled have had an erection that lasted for more than 4 hours have problems with your blood cells such as sickle cell anemia, multiple myeloma, or leukemia have retinitis pigmentosa, a rare genetic (runs in families) eye disease have ever had severe vision loss, including an eye problem called NAION have kidney problems or are having kidney dialysis Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. VIAGRA may affect the way other medicines work, and other medicines may affect the way VIAGRA works, causing side effects. Alpha-blockers are sometimes prescribed for prostate problems or high blood pressure. Make sure you have discussed any other medications you are currently taking or plan to take before starting sildenafil with your doctor and pharmacist.