Open Surveys

^ 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". "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. ^ 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? 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'".

Select a medication above to begin.

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". ^ 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".

Patient resources

^ 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. "Onset and duration of action of sildenafil for the treatment of erectile dysfunction". ^ "Scientist who developed Viagra receives knighthood in New Year's Honours".

Get in the mood

Archived from the original on 14 January 2023. "Sildenafil: from angina to erectile dysfunction to pulmonary 50mg viagra hypertension and beyond". 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! Archived from the original on 19 December 2019.

Product	Dosage	Quantity + Bonus	Price
Viagra Original	100mg	22 + 2 Pills	120.71€ 114.96€	Buy
Viagra Professional	100mg	30 Pills	88.92€ 84.69€	Buy
Viagra Soft Tabs	100mg	270 + 10 Pills	419.95€ 399.95€	Buy
Viagra Generic	50mg	270 + 8 Pills	198.48€ 189.03€	Buy
Viagra Original	100mg	12 Pills	72.54€ 69.09€	Buy
Viagra Soft Tabs	100mg	180 + 10 Pills	314.95€ 299.95€	Buy
Viagra Generic	100mg	20 Pills	45.58€ 43.41€	Buy
Viagra Oral Jelly	100mg	21 Sachets	78.66€ 74.91€	Buy
Viagra Super Active	100mg	120 + 16 Pills	198.37€ 188.92€	Buy
Viagra Generic	25mg	270 + 8 Pills	184.26€ 175.49€	Buy
Viagra Professional	100mg	20 Pills	71.14€ 67.75€	Buy
Viagra Original	100mg	8 Pills	59.84€ 56.99€	Buy
Viagra Oral Jelly	100mg	110 + 9 Sachets	284.63€ 271.08€	Buy
Viagra Generic	100mg	270 + 10 Pills	270.47€ 257.59€	Buy
Viagra Generic	200mg	270 + 10 Pills	379.76€ 361.68€	Buy
Viagra Soft Tabs	100mg	60 + 6 Pills	152.94€ 145.66€	Buy
Viagra Super Active	100mg	90 + 10 Pills	165.61€ 157.72€	Buy

Archived from the original on 6 May 2018. Archived from the original on 9 January 2009.

Peds Dosing .

"Pharmacology and drug interaction effects of the phosphodiesterase 5 inhibitors: focus on alpha-blocker interactions". Use of sildenafil (Viagra) in patients with cardiovascular disease. American College of Cardiology/American Heart Association". Journal of the American College of Cardiology. ^ "Viagra (Sildenafil Citrate): Side Effects, Interactions, Warning, Dosage & Uses".

How is sildenafil supplied (dosage forms)?

Archived from the original on 12 July 2018. "Young men add Viagra to their drug arsenal". Archived from the original on 4 September 2014. "Recreational use and misuse of phosphodiesterase 5 inhibitors". Archived from the original on 21 August 2016.

What is Viagra’s form?

"Sildenafil does not improve sexual function in men without erectile dysfunction but does reduce the postorgasmic refractory time". ^ McCambridge J, Mitcheson L, Hunt N, Winstock A (March 2006). "The rise of Viagra among British illicit drug users: 5-year survey data". "Does marijuana use play a role in the recreational use of sildenafil?". Archived from the original on 26 January 2013. Archived from the original on 22 February 2021. ^ 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.

• The lower dose is advantageous for men with mild to moderate ED.
• It is not addictive and does not lead to physical dependence.
• Tolerance (needing more for the same effect) is not typically reported.
• Can improve confidence and quality of life for men and their partners.
• Some men may experience muscle aches or back pain as a side effect.
• The pill does not work if there is no sexual arousal or stimulation.
• It is important to address underlying causes like stress, diet, and exercise.
• Can be used by men who have had a radical prostatectomy, with varying success.
• Telemedicine has increased access to legitimate prescriptions and consultations.
• The medication should be part of an overall health and wellness strategy.
• Discontinue use and contact your doctor if you experience a sudden hearing loss.

^ "Viagra to go generic in 2017 according to Pfizer agreement". Archived viagra click and collect 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". 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.

Patient Group	Recommended Dose	Maximum Dose	Notes
Adults with ED	25 mg as needed	50 mg	Take 30 min before activity
Elderly	25 mg	25 mg	Lower dosage due to metabolism
Patients on other meds	Consult doctor	Do not exceed prescribed	Potential interactions

^ a b "Pfizer Settles Viagra® Patent Litigation With Teva".

Risk or Precaution	Description	Recommendations
Priapism	Prolonged, painful erection	Seek immediate medical attention if it lasts more than 4 hours
Cardiovascular stress	Increased heart workload	Consult doctor if heart conditions exist
Vision changes	Sudden loss or impairment of vision	Discontinue use and consult healthcare provider

"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. "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". ^ "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.

• Sildenafil's molecular weight is 666.7 g/mol for the free base.
• The citrate salt formulation improves solubility and absorption.
• Taking it after a large, fatty dinner may mean waiting 2 hours for full effect.
• It is not recommended for men with severe hypotension (BP <90/50).
• Can be used by men with stable coronary artery disease on appropriate therapy.
• The medication's patent expiration led to a substantial price decrease.
• Some men may experience dyspepsia (indigestion) as a side effect.
• It is important to rule out hypogonadism (low testosterone) as a cause of ED.
• The pill does not work if the nerves or blood supply to the penis are severely damaged.
• Patient assistance programs may be available for brand-name Viagra.
• Honesty with your doctor about all health issues is crucial for safe use.

"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".

Overdose/Missed Dose

"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". Archived from the original on 14 August 2020. "Bears' Brandon Marshall says some NFL players use Viagra ..

When to call your doctor

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". "Detection of sildenafil analogues in herbal products for erectile dysfunction". Archived from the original on 4 March 2016.

Can Viagra be crushed, split, or chewed?

^ "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". Archived from the original on 23 April 2019. ^ R. 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". Archived from the original on 5 February 2013.

What is Viagra used for?

"Phosphodiesterase inhibitors for erectile dysfunction in patients with diabetes mellitus". "Strategies for managing sexual dysfunction induced by antidepressant medication". The Cochrane Database of Systematic Reviews (5) CD003382. Archived from the original on 10 October 2020. "Efficacy and safety of sildenafil treatment in pulmonary arterial hypertension: a systematic review".

Does Viagra help with premature ejaculation?

Archived from the original on 29 August 2021. "Raynaud's phenomenon and digital ischaemia--pharmacologic approach and alternative treatment options". "Efficacy of Sildenafil on healthy humans in high‑altitude hypoxia at rest and during exercise: A meta‑analysis". "Interventions for preventing high altitude illness: Part 1. Archived from the original on 10 June 2017.

Is Viagra safe to use?

^ "FDA Updates Labeling for Viagra, Cialis and Levitra for Rare Post-Marketing Reports of Eye Problems" (Press release). Archived from the original on 22 October 2016. "Vision disorders and phosphodiesterase type 5 inhibitors: a review of the evidence to date". ^ "FDA Announces Revisions to Labels for Cialis, Levitra and Viagra". "Drug interactions with phosphodiesterase-5 inhibitors used for the treatment of erectile dysfunction or pulmonary hypertension". "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". VIAGRA- sildenafil citrate tablet, film coated Pfizer Laboratories Div Pfizer Inc For most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity.