Comparing Viagra vs Alprostadil
Viagra | Alprostadil |
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Viagra (sildenafil) | Alprostadil |
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Prescription only
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 |
Prescription only
Prescribed for Erectile Dysfunction, Patent Ductus Arteriosus. alprostadil may also be used for purposes not listed in this medication guide. |
Related suggestions Erectile Dysfunction
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More about Viagra (sildenafil) | More about Alprostadil | ||||||||
Ratings & Reviews | |||||||||
Viagra has an average rating of 8.5 out of 10 from a total of 255 ratings on Drugs.com. 83% of reviewers reported a positive effect, while 9% reported a negative effect. |
Alprostadil has an average rating of 7.1 out of 10 from a total of 182 ratings on Drugs.com. 63% of reviewers reported a positive effect, while 23% reported a negative effect. |
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Drug Class | |||||||||
Side Effects | |||||||||
See also: Viagra side effects in more detail. |
See also: alprostadil side effects in more detail. |
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Generic Availability | |||||||||
Lower cost generic |
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Pricing and Coupons * Prices are without insurance | |||||||||
View all Viagra prices |
We could not find an exact match for this medicine. Try searching the Price Guide directly. |
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Dosage Forms Available | |||||||||
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Brand Names | |||||||||
Other sildenafil brands include: Liqrev, Revatio | Caverject, Caverject Impulse, Edex, Edex Refill, Muse, Prostin VR Pediatric | ||||||||
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. | |||||||||
4 hours |
2 hours |
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CSA Schedule ** View glossary of terms | |||||||||
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 | |||||||||
Category B
No proven risk in humans
See the full pregnancy warnings document. |
Category X
Not for use in pregnancy
See the full pregnancy warnings document. |
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Drug Interactions | |||||||||
A total of 339 drugs are known to interact with Viagra:
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A total of 42 drugs are known to interact with alprostadil:
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Alcohol/Food/Lifestyle Interactions | |||||||||
No known alcohol/food interactions. This does not necessarily mean no interactions exist. Always consult your healthcare provider. |
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Disease Interactions | |||||||||
First Approval Date | |||||||||
March 27, 1998 |
October 16, 1981 |
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WADA Class View World Anti-Doping Agency classifications. | |||||||||
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.