Comparing Stendra vs Viagra
| Stendra | Viagra |
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| Stendra avanafil | Viagra sildenafil |
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Prescribed for Erectile Dysfunction. Stendra may also be used for purposes not listed in this medication guide. |
Viagra is used to treat erectile dysfunction (ED), but will not have any effect in the absence of sexual stimulation. A headache, stomach upsets, and flushing are the main side effects. Prescribed... View more |
Choose a suggestion below Erectile Dysfunction
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| More about Stendra (avanafil) | More about Viagra (sildenafil) | ||||||||||||||||
| Generic Status | |||||||||||||||||
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No lower-cost generic available |
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| Availability | |||||||||||||||||
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Prescription only |
Prescription only |
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| Ratings & Reviews | |||||||||||||||||
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Stendra has an average rating of 5.7 out of 10 from a total of 59 ratings on Drugs.com. 46% of reviewers reported a positive effect, while 39% reported a negative effect. |
Viagra has an average rating of 8.6 out of 10 from a total of 242 ratings on Drugs.com. 83% of reviewers reported a positive effect, while 9% reported a negative effect. |
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| Drug Class | |||||||||||||||||
| Side Effects | |||||||||||||||||
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Common side effects include: headache, and flushing. See the full Stendra side effects document. |
Common side effects include: dyspepsia, headache, visual disturbance, and flushing. See the full Viagra side effects document. |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Stendra prices |
View all Viagra prices and generic prices |
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| Dosage Form(s) Available | |||||||||||||||||
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| Brand Names | |||||||||||||||||
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N/A |
Other sildenafil brands include: Revatio | ||||||||||||||||
| Half Life The half-life of a drug is the time taken for the plasma concentration of a drug to reduce to half its original value. | |||||||||||||||||
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5 hours |
4 hours |
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| CSA Schedule** View glossary of terms | |||||||||||||||||
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Not a controlled drug
Is not subject to the Controlled Substances Act. |
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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| Pregnancy Category | |||||||||||||||||
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Category C
Risk cannot be ruled out
See the full Pregnancy Warnings document. |
Category B
No proven risk in humans
See the full Pregnancy Warnings document. |
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| Drug Interactions | |||||||||||||||||
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A total of 248 drugs are known to interact with Stendra:
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A total of 306 drugs are known to interact with Viagra:
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| Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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| Disease Interactions | |||||||||||||||||
| First Approval Date | |||||||||||||||||
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N/A |
March 27, 1998 |
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| WADA Class View World Anti-Doping Agency classifications. | |||||||||||||||||
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N/A |
N/A |
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| More Information | |||||||||||||||||
| Patient resources | |||||||||||||||||
| Professional Resources | |||||||||||||||||
| Related Treatment Guide | |||||||||||||||||
** The Controlled Substances Act (CSA) schedule information displayed applies to substances regulated under federal law. There may be variations in CSA schedules between individual states.
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.