Comparing Tadalafil vs Viagra
| Tadalafil | Viagra (sildenafil) |
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| Tadalafil | Viagra (sildenafil) |
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Prescription only
Tadalafil is used to treat erectile dysfunction (ED) or to reduce symptoms of benign prostatic hyperplasia (BPH). One 'as needed' tablet lasts for 36 hours or tadalafil is available as a lower... View more |
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
Popular comparisons
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| More about Tadalafil | More about Viagra (sildenafil) | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Tadalafil has an average rating of 8.4 out of 10 from a total of 777 ratings on Drugs.com. 82% of reviewers reported a positive effect, while 10% reported a negative effect. |
Viagra has an average rating of 8.5 out of 10 from a total of 254 ratings on Drugs.com. 83% 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. | |||||||||||||||||
View all Tadalafil 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 Tadalafil prices |
View all Viagra prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Adcirca, Alyq, Chewtadzy, Cialis, Tadliq | 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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17.5 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 B
No proven risk in humans
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 339 drugs are known to interact with Tadalafil:
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A total of 367 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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November 21, 2003 |
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 | |||||||||||||||||
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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.
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.