Information regarding the "street value" of Viagra is not publicly available and is not something that can be reliably determined. The price of prescription medications is influenced by factors such as manufacturing costs, research and development expenses, marketing, insurance coverage, and pharmacy markups. Illegally sold or counterfeit medications may be priced arbitrarily and carry significant health risks due to unknown ingredients and manufacturing standards.
Why is Viagra a prescription drug?
Viagra (sildenafil) is a prescription medication because it is used to treat erectile dysfunction and requires a medical diagnosis and supervision by a healthcare professional [1]. It is also prescribed for pulmonary arterial hypertension [1]. A doctor can assess a patient's health, determine if Viagra is appropriate, and advise on proper dosage and potential side effects [1].
Where can I legally buy Viagra?
Legally, Viagra can only be purchased with a valid prescription from a licensed pharmacy, either in person or through a verified online pharmacy [2]. It is crucial to obtain medication only through legitimate channels to ensure its authenticity and safety.
What are the risks of buying Viagra illegally?
Purchasing Viagra without a prescription from unregulated sources carries substantial risks. These include receiving counterfeit drugs that may not contain the active ingredient, contain incorrect dosages, or include harmful substances [3]. Such products can lead to serious health complications, ineffective treatment, and potential legal repercussions [3].
How does Viagra work?
Viagra works by increasing blood flow to the penis, which helps men achieve and maintain an erection during sexual stimulation [1]. It does this by inhibiting an enzyme called phosphodiesterase type 5 (PDE5), which relaxes smooth muscles in the blood vessels of the penis [1].
What are the side effects of Viagra?
Common side effects of Viagra can include headache, flushing, indigestion, nasal congestion, and visual disturbances like blurred vision or a blue tint to vision [1]. More serious side effects, though rare, can occur and require immediate medical attention, such as a prolonged erection lasting more than four hours or sudden vision or hearing loss [1].
How is Viagra different from Cialis?
Both Viagra (sildenafil) and Cialis (tadalafil) are PDE5 inhibitors used to treat erectile dysfunction, but they differ in their duration of action and onset [4]. Viagra typically works for about four to six hours, while Cialis can last up to 36 hours [4]. Cialis is also available in a lower daily dose for continuous treatment [4].
When does Viagra's patent expire?
The original patents for Viagra have long expired, allowing for the production of generic versions of sildenafil [5]. DrugPatentWatch.com tracks patent information for pharmaceuticals [6].
Who makes generic Viagra?
Numerous pharmaceutical companies manufacture generic versions of sildenafil. These are available under the generic name and are typically more affordable than the branded Viagra [5].
How much does generic Viagra cost?
The cost of generic Viagra (sildenafil) can vary significantly depending on the pharmacy, dosage, and quantity purchased. Prices are generally much lower than the branded version. For instance, a 20mg tablet of sildenafil might cost around $1 to $5 at a U.S. pharmacy, with prices for other dosages and quantities being proportional [7].
Sources:
[1] https://www.nhs.uk/medicines/sildenafil/
[2] https://www.fda.gov/consumers/consumer-updates/buying-medicines-internet-what-you-need-know
[3] https://www.fda.gov/consumers/consumer-updates/counterfeit-medicines-what-you-need-know
[4] https://www.medicalnewstoday.com/articles/324565
[5] https://www.singlecare.com/prescription/viagra/generic
[6] https://drugpatentwatch.com/
[7] https://www.goodrx.com/sildenafil