Comparing Sildenafil vs Tadalafil
| Sildenafil | Tadalafil |
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| Sildenafil | Tadalafil |
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Prescription only
Sildenafil is used to treat erectile dysfunction (ED) and to reduce blood pressure in pulmonary arterial hypertension (PAH). It is taken when needed for ED and daily for PAH. A headache, stomach... View more |
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 |
Related suggestions Erectile Dysfunction
Popular comparisons
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| More about Sildenafil | More about Tadalafil | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Sildenafil has an average rating of 8.3 out of 10 from a total of 499 ratings on Drugs.com. 79% of reviewers reported a positive effect, while 12% reported a negative effect. |
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. |
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| Side Effects Experienced by Users Side effects are reported in Drugs.com user reviews and not clinically verified. | |||||||||||||||||
View all Sildenafil side effects |
View all Tadalafil side effects |
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| Drug Class | |||||||||||||||||
| Generic Availability | |||||||||||||||||
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Lower cost generic |
Lower cost generic |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Sildenafil prices |
View all Tadalafil prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Revatio, Viagra | Adcirca, Alyq, Chewtadzy, Cialis, Tadliq | ||||||||||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||||||||||
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4 hours |
17.5 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 367 drugs are known to interact with Sildenafil:
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A total of 339 drugs are known to interact with Tadalafil:
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| Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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| Disease Interactions | |||||||||||||||||
| First Approval Date | |||||||||||||||||
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March 27, 1998 |
November 21, 2003 |
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| WADA Class View classifications | |||||||||||||||||
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N/A |
N/A |
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| More Information | |||||||||||||||||
| Patient Resources | |||||||||||||||||
| Professional Resources | |||||||||||||||||
| 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.