Comparing Alprostadil vs Viagra
| Alprostadil | Viagra (sildenafil) |
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| Alprostadil | Viagra (sildenafil) |
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Prescription only
Prescribed for Erectile Dysfunction, Patent Ductus Arteriosus. Alprostadil may also be used for purposes not listed in this medication guide. |
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 |
Related suggestions Erectile Dysfunction
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| More about Alprostadil | More about Viagra (sildenafil) | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Alprostadil has an average rating of 7.0 out of 10 from a total of 183 ratings on Drugs.com. 61% of reviewers reported a positive effect, while 23% reported a negative effect. |
Viagra has an average rating of 8.6 out of 10 from a total of 256 ratings on Drugs.com. 84% of reviewers reported a positive effect, while 9% reported a negative effect. |
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| Side Effects Experienced by Users Side effects are reported in Drugs.com user reviews and not clinically verified. | |||||||||||||||||
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View all Alprostadil side effects |
View all Viagra side effects |
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| Drug Class | |||||||||||||||||
| Generic Availability | |||||||||||||||||
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Lower cost generic |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Alprostadil prices |
View all Viagra prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Caverject, Caverject Impulse, Edex, Edex Refill, Muse, Prostin VR Pediatric | Other sildenafil brands include: Revatio | ||||||||||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||||||||||
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2 hours |
4 hours |
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| CSA Schedule 1 View glossary of CSA 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 X
Not for use in pregnancy
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 44 drugs are known to interact with Alprostadil:
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A total of 370 drugs are known to interact with Viagra:
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| Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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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 | |||||||||||||||||
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October 16, 1981 |
March 27, 1998 |
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| WADA Class View classifications | |||||||||||||||||
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N/A |
N/A |
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| More Information | |||||||||||||||||
| Patient Resources | |||||||||||||||||
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| Related Treatment Guide | |||||||||||||||||
1 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.
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Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.