Sildenafil oral tablet is available as a brand-name drug and as a generic drug. Sildenafil comes in three forms: an oral tablet, an oral suspension (liquid), and an injection that’s only given by a doctor. Sildenafil oral tablet is used to treat erectile dysfunction (ED).
Why is this medication prescribed?
Archived from the original on 18 September 2013. ^ "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".
Marketing and sales
Archived from the sildenafil 25 mg tablets original on 5 February 2013. "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. It’s also used to treat pulmonary arterial hypertension (PAH). It comes in the form of a tablet and suspension (liquid). It also comes in an intravenous (IV) form, which is only given by a doctor. Sildenafil oral tablet is available as the brand-name drugs Viagra and Revatio. It’s also available as a generic drug.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Kamagra Oral Jelly | 100mg | 30 + 5 Sachets | 136.20€ 129.71€ | |
| Viagra Generic | 150mg | 10 Pills | 36.73€ 34.98€ | |
| Viagra Generic | 25mg | 90 + 6 Pills | 105.03€ 100.03€ | |
| Kamagra Oral Jelly | 100mg | 90 + 8 Sachets | 303.56€ 289.10€ | |
| Viagra Generic | 25mg | 180 + 6 Pills | 154.93€ 147.55€ | |
| Kamagra Polo | 100mg | 12 Pills | 60.21€ 57.34€ | |
| Kamagra Soft Tabs | 100mg | 272 + 12 Pills | 593.42€ 565.16€ | |
| Viagra Generic | 25mg | 270 + 8 Pills | 184.26€ 175.49€ | |
| Viagra Generic | 50mg | 360 + 10 Pills | 225.33€ 214.60€ | |
| Kamagra | 100mg | 84 + 6 Pills | 264.44€ 251.85€ | |
| Viagra Generic | 25mg | 20 Pills | 37.74€ 35.94€ | |
| Viagra Generic | 100mg | 30 + 4 Pills | 60.91€ 58.01€ | |
| Viagra Generic | 200mg | 270 + 10 Pills | 379.76€ 361.68€ | |
| Kamagra | 100mg | 360 + 6 Pills | 839.95€ 799.95€ |
Generic drugs usually cost less than the brand-name version. In some cases, they may not be available in every strength or form as the brand-name drug. Generic oral tablets are available for both conditions, but the brand-name drugs each treat only one of the conditions. Viagra: This drug is used to treat ED. With ED, you’re unable to get or maintain an erection. Revatio: This drug is used to treat PAH. With PAH, the blood pressure in your lungs is too high. Your heart has to work very hard to pump blood into your lungs. Sildenafil belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors. A class of drugs is a group of medications that work in a similar way. These drugs are often used to treat similar conditions. Sildenafil works in different ways, depending on the condition it’s being used to treat. For ED: Sildenafil works by increasing blood flow to the penis. This helps you get or maintain an erection. Sildenafil only works for ED if you’re sexually aroused. For PAH: Sildenafil works by relaxing the muscles and opening up the blood vessels in your lungs. This decreases the blood pressure in your lungs.
8.7 Hepatic Impairment
Archived from the original on 12 October 2013. "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.
Drugs Affecting or Metabolized by Hepatic Microsomal Enzymes
^ "Pfizer Completes Transaction to Combine Its Upjohn Business with Mylan". 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. Sildenafil slows down the progression of your illness. It also makes you more able to exercise. Sildenafil can be used as early as 4 hours before sex and as late as 30 minutes before sex. However, it is recommended to use this drug within an hour before sex. Sildenafil should not be taken for ED more than once in a 24-hour period.
- Sildenafil citrate 100 mg is available by prescription only in many countries.
- Do not use sildenafil if you are taking nitrate medications for chest pain.
- Alcohol can increase the risk of side effects when combined with sildenafil.
But if you have certain medical conditions or are taking other drugs, your doctor may recommend that you take this drug less often than once a day. It is important to note that certain foods, particularly foods high in fat, can cause the drug to work more slowly than normal. Sildenafil oral tablet doesn’t cause drowsiness, but it can cause other side effects, including: flushing (reddening and warming of the face) an erection that lasts longer than normal If these effects are mild, they may go away within a few days or a couple of weeks. If they’re more severe or don’t go away, talk with your doctor or pharmacist.
| Format | Price Range (USD) per Tablet | Purchase Options | Remarks |
|---|---|---|---|
| Generic Tablets | $0.50 - $2.00 | Pharmacies, online pharmacies | Widely available |
| Brand-name (Viagra) | $10 - $30 per tablet | Prescription required | More expensive |
| Pack Discounts | Varies | Multi-pack discounts offered | Often cheaper per unit |
Call your doctor right away if you have serious side effects. Call 911 if your symptoms feel life threatening or if you think you’re having a medical emergency.
What is sildenafil?
^ "Approved Viagra copies flood drugstores in Korea". ^ "Viagra prescriptions almost triple in a decade". Archived from the original on 1 July 2024. ^ "MHRA reclassifies Viagra Connect tablets to a Pharmacy medicine". ^ "Viagra to be available without prescription in UK". Serious side effects and their symptoms can include the following: Symptoms can include:blurry visionconfusiondizzinessfaintinglightheadednessnausea or vomitingsleepinessweakness Increased shortness of breath or trouble breathing Priapism (an erection that lasts more than 4 hours) Symptoms can include:sudden vision loss in one or both eyes sudden vision loss in one or both eyes Symptoms can include:sudden hearing losstinnitus (ringing in your ears)dizziness Heart problems, such as heart attack, stroke, or irregular heart rate.
| Parameter | Value | Notes |
|---|---|---|
| Absorption Time | 30-60 minutes | Prompt onset after oral ingestion |
| Peak Plasma Levels | 60 minutes | Max concentration reached |
| Bioavailability | 40% | Due to first-pass metabolism |
| Metabolic Pathway | Liver (CYP3A4) | Hepatic metabolism primarily |
| Excretion | Mainly feces, minor urine | Elimination half-life approx. 4 hours |
Symptoms can include:chest painshortness of breathdizzinesstrouble speakingconfusionnausea or vomitingfeeling lightheaded Priapism warning: This drug can cause priapism, which is an erection that won’t go away. If you have an erection that lasts more than 4 hours, call 911 or go to the nearest emergency room. If it’s not treated right away, this condition can cause permanent damage to your penis.
Chemical synthesis
Archived from the original on 19 November 2016. "Counterfeit Viagra, Cialis, Levitra: The Ultimate Guide". Archived from the original on 10 January 2017. "Online pharmacies suspected of counterfeit drug sales". ^ "Erectile Dysfunction Medication the Most Seized Drug During Global Crackdown, Interpol Says".
Sildenafil may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
^ "Global illicit medicines targeted by INTERPOL operation". 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". Sudden vision loss warning: This drug can cause sudden vision loss in one or both eyes. This can be a sign of a serious eye problem. If this occurs, stop taking sildenafil and call your doctor right away. Sudden hearing loss warning: This drug can cause hearing loss, tinnitus (ringing in your ears), or dizziness. If you have sudden hearing loss with or without tinnitus or dizziness, stop taking sildenafil and call your doctor right away. Use in children warning: Children generally should not take sildenafil; however, there are sildenafil online ireland instances where the drug is considered the best treatment option.
Route of administration
"What Will Happen When Viagra Goes Generic?". 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.
Liens externes
Archived from the original on 25 June 2007. "Viagra from the pharmacist: insight from reclassification in New Zealand". Archived from the original on 17 May 2021. ^ "Generic Viagra developers queue up, but sildenafil citrates may have to wait". Archived from the original on 28 December 2021. Talk with your child’s doctor to better understand the benefits and risks associated with this treatment option.
5.4 Hearing Loss
"Sex, Drugs and That Little Blue Pill". Archived from the original on 6 December 2017. "Why Pfizer Is About to Slash Viagra's Price in Half". Archived from the original on 7 December 2017. "Pfizer to lose patent of drug Viagra, Indian companies gear up with copycat versions: Pfizer's patent for the formulation of Viagra, used to treat impotence in men, ends in the US in 2020".
Vitamin K Antagonists
Archived from the original on 17 April 2021. ^ "Set to conquer US, Indian 'Viagras' may give Pfizer a hard Time". Archived from the original on 22 December 2020. ^ a b "Pfizer Settles Viagra® Patent Litigation With Teva". "Lockout Supplements Issues Voluntary Nationwide Recall of Boner Bears Chocolate Syrup Due to Undeclared Sildenafil". Sildenafil oral tablet can interact with other medications, vitamins, or herbs you may be taking. An interaction is when a substance changes the way a drug works. This can be harmful or prevent the drug from working well. To help avoid interactions, your doctor should manage all of your medications carefully. Be sure to tell your doctor about all medications, vitamins, or herbs you’re taking. To find out how this drug might interact with something else you’re taking, talk with your doctor or pharmacist. Examples of drugs that can cause interactions with sildenafil are listed below.
8.4 Pediatric Use
^ "Revatio patent ruled invalid for lack of sound prediction and obviousness". 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.
Warnings for other groups
"Supreme Court ruling could lead to cheaper versions of Viagra". 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". Do not take these drugs with sildenafil.
- Sildenafil citrate 100 mg should be taken approximately 30-60 minutes before sexual activity.
- Avoid taking sildenafil with a high-fat meal, as it may delay absorption.
- Do not exceed one dose in 24 hours to reduce risk of side effects.
Doing so can cause dangerous effects in the body. Nitrates, such as isosorbide mononitrate, isosorbide dinitrate, or nitroglycerin.Taking these drugs with sildenafil can cause your blood pressure to drop suddenly to an unsafe level. Taking these drugs with sildenafil can cause your blood pressure to drop suddenly to an unsafe level. Guanylate cyclase stimulators, such as riociguat.Taking these drugs with sildenafil can cause your blood pressure to drop suddenly to an unsafe level. Side effects from sildenafil: Taking sildenafil with certain medications raises your risk for side effects from sildenafil. This is because the amount of sildenafil in your body is increased. HIV drugs, such as ritonavir, indinavir, saquinavir, or atazanavir.Increased side effects can include low blood pressure, dizziness, or vision problems. They can also include erections that last longer than normal. Increased side effects can include low blood pressure, dizziness, or vision problems. Certain antibiotics, such as clarithromycin or erythromycin.Increased side effects can include low blood pressure, dizziness, or vision problems.
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