Comparing Cialis vs Sildenafil
| Cialis | Sildenafil |
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| Cialis (tadalafil) | Sildenafil |
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Prescription only
Cialis is used to treat erectile dysfunction (ED) and to reduce symptoms of benign prostatic hyperplasia (BPH). One 'as needed' tablet lasts for 36 hours or Cialis is available as a lower dosage... View more |
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 |
Related suggestions Erectile Dysfunction
Popular comparisons
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| More about Cialis (tadalafil) | More about Sildenafil | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Cialis has an average rating of 8.5 out of 10 from a total of 548 ratings on Drugs.com. 83% of reviewers reported a positive effect, while 9% reported a negative effect. |
Sildenafil has an average rating of 8.3 out of 10 from a total of 498 ratings on Drugs.com. 79% of reviewers reported a positive effect, while 12% reported a negative effect. |
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| Drug Class | |||||||||||||||||
| Side Effects | |||||||||||||||||
| Generic Availability | |||||||||||||||||
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Lower cost generic |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Cialis prices |
View all Sildenafil prices |
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| Dosage Forms Available | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Other tadalafil brands include: Adcirca, Alyq, Chewtadzy, Tadliq | Liqrev, Revatio, Viagra | ||||||||||||||||
| 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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17.5 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 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 332 drugs are known to interact with Cialis:
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A total of 359 drugs are known to interact with Sildenafil:
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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 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.