Viagra Information
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".
- Research ongoing in Canada explores new sildenafil formulations for better efficacy.
- Canadian companies may produce generic sildenafil for local distribution.
- Studies show sildenafil's effectiveness improves quality of life for many Canadian men.
- Canadian regulations ensure that sildenafil is prescribed appropriately and safely.
- Public awareness campaigns highlight the importance of consulting healthcare professionals on sildenafil.
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. ^ 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.
New Blog Post
Archived from the original on 23 April 2019. ^ R. Baselt, Disposition of Toxic Drugs and Chemicals in Man, 9th edition, Biomedical Publications, Seal Beach, CA, 2011, pp. Archived from the original (PDF) on 10 September 2011. "Structure of the catalytic domain of human phosphodiesterase 5 with bound drug molecules".
Storage Instructions
^ a b Webb DJ, Freestone S, Allen MJ, Muirhead GJ (March 1999). "Sildenafil citrate and blood-pressure-lowering drugs: results of drug interaction studies with an organic nitrate and a calcium antagonist". ^ Goldstein I, Lue TF, Padma-Nathan H, Rosen RC, Steers WD, Wicker PA (May 1998). "Oral sildenafil in the treatment of erectile dysfunction. Archived from the original on 14 January 2012.
Licensed practitioner consultation
"Onset and duration of action of sildenafil for the treatment of erectile dysfunction". ^ "Scientist who developed Viagra receives knighthood in New Year's Honours". Archived from the original on 14 January 2023. "Sildenafil: from angina to erectile dysfunction to pulmonary hypertension and beyond". Archived from the original on 26 September 2008. "Counterfeit Viagra, Cialis, Levitra: The Ultimate Guide".
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Kamagra | 100mg | 84 + 6 Pills | 264.44€ 251.85€ | |
| Viagra Generic | 25mg | 90 + 6 Pills | 105.03€ 100.03€ | |
| Kamagra Polo | 100mg | 272 + 12 Pills | 622.94€ 593.28€ | |
| Viagra Generic | 100mg | 270 + 10 Pills | 270.47€ 257.59€ | |
| Kamagra | 100mg | 360 + 6 Pills | 839.95€ 799.95€ | |
| Viagra Generic | 50mg | 60 + 4 Pills | 83.93€ 79.93€ | |
| Viagra Generic | 100mg | 180 + 8 Pills | 199.37€ 189.88€ | |
| Viagra Generic | 50mg | 120 + 6 Pills | 129.64€ 123.47€ | |
| Viagra Generic | 100mg | 10 Pills | 28.91€ 27.53€ | |
| Kamagra Soft Tabs | 100mg | 180 + 8 Pills | 425.45€ 405.19€ | |
| Viagra Generic | 200mg | 30 + 2 Pills | 83.07€ 79.11€ | |
| Viagra Generic | 50mg | 270 + 8 Pills | 198.48€ 189.03€ | |
| Viagra Generic | 200mg | 360 + 10 Pills | 481.98€ 459.03€ | |
| Viagra Generic | 25mg | 60 + 4 Pills | 71.99€ 68.56€ | |
| Viagra Generic | 50mg | 360 + 10 Pills | 225.33€ 214.60€ |
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". ^ "Global illicit medicines targeted by INTERPOL operation". Archived from the original on 10 December 2023. ^ "Israeli-made AI exposes international fake Viagra network".
Which is better Cialis or Viagra?
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. ^ "Pfizer Courting More Controversy with Viagra 'Advergaming'".
About Viagra
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. ^ a b "Viagra now available over the counter without prescription in the UK".
Get your treatment plan
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. ^ "Viagra to go generic in 2017 according to Pfizer agreement". ^ "Counterfeit Viagra Pills, sildenafil pricing 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. "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". 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". 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". 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. ^ "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".
| Brand Name | Manufacturer | Dosage Forms | Price Range (CAD) |
|---|---|---|---|
| Viagra | Pfizer | Tablets 25 mg, 50 mg, 100 mg | 20–60 per tablet |
| Sildenafil Accord | Accord Healthcare | Tablets 50 mg | 15–45 per tablet |
| Sildenafil Sandoz | Sandoz | Tablets 20 mg, 50 mg | 18–50 per tablet |
| Kamagra | Ajanta Pharma (imported) | Tablets 100 mg | Varies, often unlicensed |
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?". 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. ^ "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". This section identifies the active ingredient in Viagra® and lists comparable pharmaceutical brands available in Canada. Viagra® is a brand-name medication containing the active ingredient sildenafil. In the Canadian pharmaceutical landscape, it belongs to a class of drugs that manage blood flow through specific enzymatic pathways. Other competing Canadian brands that utilize similar pharmacological mechanisms include Cialis® (tadalafil), Levitra® (vardenafil), and Staxyn® (vardenafil). Another sildenafil-based brand, Revatio®, is also available but is often dispensed in different strengths for distinct clinical purposes. In Canada, this medication is primarily available as oral tablets in three standardized strengths. Viagra® is produced as blue, film-coated, diamond-shaped tablets. The available formats in Canadian pharmacies include: Viagra® works by protecting specific molecules that allow smooth muscles to relax and increase blood flow. At a biological level, sildenafil is a selective inhibitor of the PDE5 enzyme.
- Sildenafil is not approved for use by women.
- Limited research exists on its effects for female sexual dysfunction.
- It is sometimes used off-label for certain female conditions under strict supervision.
- Self-medication by women is strongly discouraged due to unknown risks.
- Pregnant or breastfeeding women should not use sildenafil.
- Female-specific sexual health concerns should be addressed with a doctor.
- Safe and effective treatments for women are an area of ongoing study.
Under normal conditions, this enzyme breaks down a substance called cyclic guanosine monophosphate (cGMP). By blocking PDE5, Viagra® allows cGMP levels to remain elevated.
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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". "Sildenafil (Viagra), a potent and selective inhibitor of Type 5 cGMP phosphodiesterase with utility for the treatment of male erectile dysfunction".
Raynaud's phenomenon
"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". Archived from the original on 1 November 2012.
Prepare For Your Visit
^ 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". "A new view of women's sexual problems: Why new? This leads to the relaxation of smooth muscles in the walls of blood vessels, which facilitates increased blood flow to specific areas of the body. Usage involves oral administration according to strict timing and safety guidelines provided by a healthcare professional. Viagra® is taken orally, generally with or without food. Because its absorption can be delayed by high-fat meals, timing is an essential pharmaceutical consideration. It is typically administered as a single dose when needed, and it is strictly recommended that users do not exceed one dose within a 24-hour period. Dosage adjustments are made based on individual physiological responses and safety profiles. Proper storage ensures the chemical stability and shelf-life of the sildenafil citrate compound. Temperature: Store at room temperature between 15°C and 30°C.
Society and culture
"Does marijuana use play a role in the recreational use of sildenafil?". Archived from the original on 26 January 2013. "Sildenafil accelerates reentrainment of circadian rhythms after advancing light schedules". Proceedings of the National Academy of Sciences of the United States of America. "Source: Roger Clemens, host of athletes pop Viagra to help onfield performance".
Erectile dysfunction
Archived from the original on 14 August 2020. "Bears' Brandon Marshall says some NFL players use Viagra .. on the Field". Archived from the original on 5 March 2016. "Towards a decade of detecting new analogues of sildenafil, tadalafil and vardenafil in food supplements: a history, analytical aspects and health risks".
Product Reviews
"Detection of sildenafil analogues in herbal products for erectile dysfunction". Archived from the original on 4 March 2016. ^ "FDA Warns Consumers About Dangerous Ingredients in "Dietary Supplements" Promoted for Sexual Enhancement". Archived from the original on 18 January 2017. ^ "Hidden Risks of Erectile Dysfunction 'Treatments' Sold Online". Environment: Keep the tablets in a dry place away from moisture (avoid bathroom cabinets).
| Drug Class | Common Drugs | Effect | Notes |
|---|---|---|---|
| Nitrates | Nitroglycerin | Severe hypotension | Contraindicated |
| Alpha-blockers | Tamsulosin, Doxazosin | Increased hypotensive effect | Use with caution, start at lowest dose |
| CYP3A4 inhibitors | Ketoconazole, Itraconazole | Increased sildenafil levels | May increase side effect risk |
| Other ED medications | Tadalafil, Vardenafil | Enhanced effect | Risk of hypotension |
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