Label: SILDENAFIL tablet, film coated

"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".

• Sildenafil 25mg can be used for pulmonary arterial hypertension.
• It works by relaxing blood vessels in the lungs.
• Not suitable for everyone; discuss health conditions with your doctor.
• Store tablets in a cool, dry place away from children.
• Do not take more than one dose within 24 hours.
• Report any persistent side effects to your healthcare provider.

Retrieved 17 June 2024 – via Business Wire.

Frequently asked questions

^ "Viagra to go generic in 2017 according to Pfizer agreement". Archived from the original on 1 December 2017. "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".

Regional issues

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". 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. 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". Archived from the original on 3 sildenafil tablets 125 March 2016.

{{cite web}}: CS1 maint: deprecated archival service (link) ^ Teva Canada Ltd. v. Pfizer Canada Inc., 2012 SCC 60 at par.

2.2 Use with Food

^ "Pfizer Courting More Controversy with Viagra 'Advergaming'". Archived from the original on 19 December 2019. Archived from the original on 6 May 2018. Archived from the original on 9 January 2009. Archived from the original on 22 February 2021.

Sildenafil: what you need to know

^ a b "Viagra now available over the counter without prescription in the UK". Archived from the original on 26 March 2021. Archived from the original on 8 December 2013. "The coming generics threat to Pfizer's Viagra brand just got scarier". Archived from the original on 9 September 2017. "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".

1. How it works

"Online pharmacies suspected of counterfeit drug sales". ^ "Erectile Dysfunction Medication the Most Seized Drug During Global Crackdown, Interpol Says". ^ "Global illicit medicines targeted by INTERPOL operation". Archived from the original on 10 December 2023. ^ "Israeli-made AI exposes international fake Viagra network". 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.

Sildenafil vs Tadalafil for Erectile Dysfunction

^ a b "Pfizer Settles Viagra® Patent Litigation With Teva". "Lockout Supplements Issues Voluntary Nationwide Recall of Boner Bears Chocolate Syrup Due to Undeclared Sildenafil". Archived from the original on 19 November 2016. "Counterfeit Viagra, Cialis, Levitra: The Ultimate Guide". Archived from the original on 10 January 2017. "In rare move, Pfizer asks Supreme Court to reconsider ruling that killed Viagra patent". Archived from the 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. "What Will Happen When Viagra Goes Generic?".

5.7 Combination with other PDE5 Inhibitors or Other Erectile Dysfunction Therapies

^ "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. "Yes, There Is a Way to Get Generic Viagra". Archived from the original on 2 May 2016. 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. "Viagra from the pharmacist: insight from reclassification in New Zealand". Archived from the original on 17 May 2021.

• Sildenafil 25mg is a lower dose for treating erectile dysfunction.
• It helps increase blood flow to the penis for improved erection.
• Usually taken 30-60 minutes before sexual activity.
• Consult a doctor before starting sildenafil 25mg.
• Common side effects include headaches, flushing, and dizziness.
• Avoid alcohol and high-fat meals when taking sildenafil.

^ "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". ^ "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". NDC Code(s): 72888-015-05, 72888-015-30, 72888-016-00, 72888-016-01, view more72888-016-30, 72888-017-00, 72888-017-01, 72888-017-30 If you are a consumer or patient please visit this version. HIGHLIGHTS OF PRESCRIBING INFORMATION These highlights do not include all the information needed to use SILDENAFIL TABLETS safely and effectively. See full prescribing information for SILDENAFIL TABLETSSILDENAFIL tablets, for oral useInitial U.S. Approval: 1998RECENT MAJOR CHANGESWarnings and Precautions, Effects on the Eye ( 5.3)INDICATIONS AND USAGESildenafil tablets are phosphodiesterase-5 (PDE5) inhibitor indicated for the treatment of erectile dysfunction (ED) ( 1)DOSAGE AND ADMINISTRATIONFor most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity.

2.4 Dosage Adjustments Due to Drug Interactions

Archived from the original on 1 November 2012. ^ Gurevich M, Cormier N, Leedham U, Brown-Bowers A (August 2018). Sexuopharmaceutical use by men as prevention and proficiency". "Spreading the Word, but What Word is That? Viagra and Male Sexuality in Popular Culture".

Marketing and sales

"A new view of women's sexual problems: Why new? Archived from the original on 3 January 2009. Archived from the original on 12 October 2008. "Sales of Impotence Drugs Fall, Defying Expectations". Archived from the original on 11 October 2007. However, sildenafil tablets may be taken anywhere from 30 minutes to 4 hours before sexual activity ( 2.1)Based on effectiveness and toleration, may increase to a maximum of 100 mg or decrease to 25 mg ( 2.1)Maximum recommended dosing frequency is once per day ( 2.1)DOSAGE FORMS AND STRENGTHSTablets: 25 mg, 50 mg, 100 mg ( 3)CONTRAINDICATIONSAdministration of sildenafil tablets to patients using nitric oxide donors, such as organic nitrates or organic nitrites in any form. Sildenafil tablets was shown to potentiate the hypotensive effect of nitrates ( 4.1, 7.1, 12.2)Known hypersensitivity to sildenafil or any component of tablet ( 4.2)Administration with guanylate cyclase (GC) stimulators, such as riociguat ( 4.3)WARNINGS AND PRECAUTIONSPatients should not use sildenafil tablets if sexual activity is inadvisable due to cardiovascular status ( 5.1)Patients should seek emergency treatment if an erection lasts >4 hours.

• Always use sildenafil 25mg as prescribed by your healthcare provider.
• Avoid driving or operating machinery until effects are known.
• Sildenafil does not protect against sexually transmitted infections.
• Do not share your medication with others.
• Report any allergic reactions like rash or swelling.
• Use caution to prevent falls or injuries due to dizziness.

Use sildenafil tablets with caution in patients predisposed to priapism ( 5.2)Patients should stop sildenafil tablets and seek medical care if a sudden loss of vision occurs in one or both eyes, which could be a sign of non arteritic anterior ischemic optic neuropathy (NAION). Sildenafil tablets should be used with caution, and only when the anticipated benefits outweigh the risks, in patients with a history of NAION. Patients with a "crowded" optic disc may also be at an increased risk of NAION. ( 5.3)Patients should stop sildenafil tablets and seek prompt medical attention in the event of sudden decrease or loss of hearing ( 5.4)Caution is advised when sildenafil tablets is co-administered with alpha-blockers or anti- hypertensives. Concomitant use may lead to hypotension ( 5.5)Decreased blood pressure, syncope, and prolonged erection may occur at higher sildenafil exposures.

• Sildenafil 25mg may be less potent than higher doses but still effective.
• Confirm your dosage with your healthcare provider regularly.
• Do not use sildenafil if you are allergic to it.
• Check for contraindications such as severe liver or kidney disease.
• Alcohol may diminish the medication’s effectiveness.
• Follow prescribed timing for best results and safety.

In patients taking strong CYP inhibitors, such as ritonavir, sildenafil exposure is increased. Decrease in sildenafil tablets dosage is recommended ( 2.4, 5.6)ADVERSE REACTIONSMost common adverse reactions (≥ 2%) include headache, flushing, dyspepsia, abnormal vision,nasal congestion, back pain, myalgia, nausea, dizziness and rash ( 6.1)To report SUSPECTED ADVERSE REACTIONS, contact Advagen Pharma Ltd, at 866-488-0312 or FDA at 1-800-FDA-1088 or INTERACTIONSSildenafil can potentiate the hypotensive effects of nitrates, alpha blockers, and anti- hypertensives ( 4.1, 5.5, 7.1, 7.2, 7.3, 12.2)With concomitant use of alpha blockers, initiate sildenafil at 25 mg dose ( 2.3)CYP3A4 inhibitors (e.g., ritonavir, ketoconazole, itraconazole, erythromycin): Increase sildenafil exposure ( 2.4, 7.4, 12.3)USE IN SPECIFIC POPULATIONSSee 17 for PATIENT COUNSELING INFORMATION and FDA-approved patient labeling.Revised: 1/2026 Warnings and Precautions, Effects on the Eye ( 5.3) Sildenafil tablets are phosphodiesterase-5 (PDE5) inhibitor indicated for the treatment of erectile dysfunction (ED) ( 1) For most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity.

What is erectile dysfunction (ED)?

Archived from the original on 26 September 2008. Our clinicians regularly offer patients the opportunity to take part in trials of new drugs and treatments. Morriston Hospital in Swansea, was the first in the world to trial Viagra! ^ Boolell M, Allen MJ, Ballard SA, Gepi-Attee S, Muirhead GJ, Naylor AM, et al. "Sildenafil: an orally active type 5 cyclic GMP-specific phosphodiesterase inhibitor for the treatment of penile erectile dysfunction".

Usual Geriatric Dose for:

"Sildenafil (Viagra), a potent and selective inhibitor of Type 5 cGMP phosphodiesterase with utility for the treatment of male erectile dysfunction". "Drug repositioning: identifying and developing new uses for existing drugs". Archived from the original on 22 April 2019. Archived from the original on 10 June 2019. "Health situation in former communist bloc is dire, says Unicef". However, sildenafil tablets may be taken anywhere from 30 minutes to 4 hours before sexual activity ( 2.1) Based on effectiveness and toleration, may increase to a maximum of 100 mg or decrease to 25 mg ( 2.1) Maximum recommended dosing frequency is once per day ( 2.1) Tablets: 25 mg, 50 mg, 100 mg ( 3) Administration of sildenafil tablets to patients using nitric oxide donors, such as organic nitrates or organic nitrites in any form.