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
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
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
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Popular comparisons
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Sildenafil has an average rating of8.3 out of 10 from a total of495 ratings on Drugs.com.79% of reviewers reported a positive effect, while 12% reported a negative effect.
Cialis has an average rating of8.5 out of 10 from a total of547 ratings on Drugs.com.83% of reviewers reported a positive effect, while 9% reported a negative effect.
Viagra has an average rating of8.5 out of 10 from a total of255 ratings on Drugs.com.83% of reviewers reported a positive effect, while 9% reported a negative effect.
View all 495 reviews
View all 547 reviews
View all 255 reviews
- Agents for pulmonary hypertension
- Impotence agents
- Impotence agents
- Impotence agents
See also: sildenafil side effects in more detail.
See also: Cialis side effects in more detail.
See also: Viagra side effects in more detail.
Lower cost generic
Lower cost generic approved
Lower cost generic approved
| Quantity | 2 tablet |
|---|---|
| Dosage | 100 mg |
| Per Unit* | $4.83 - $16.06 |
| Cost* | $9.66 - $32.11 |
View all sildenafil prices
| Quantity | 30 tablet |
|---|---|
| Dosage | 20 mg |
| Per Unit* | $59.60 |
| Cost* | $1,788.08 |
View all Cialis prices
| Quantity | 30 tablet |
|---|---|
| Dosage | 100 mg |
| Per Unit* | $92.38 |
| Cost* | $2,771.36 |
View all Viagra prices
Get free Discount Card
Get free Discount Card
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- Intravenous solution
- Oral powder for reconstitution
- Oral tablet
- Oral tablet
- Oral tablet
4 hours
17.5 hours
4 hours
N
Not a controlled drug
Is not subject to the Controlled Substances Act.
N
Not a controlled drug
Is not subject to the Controlled Substances Act.
N
Not a controlled drug
Is not subject to the Controlled Substances Act.
B
Category BNo proven risk in humans
See the full pregnancy warnings document.
B
Category BNo proven risk in humans
See the full pregnancy warnings document.
B
Category BNo proven risk in humans
See the full pregnancy warnings document.
A total of 335 drugs are known to interact with sildenafil:
- 38 major drug interactions (139 brand and generic names)
- 293 moderate drug interactions (908 brand and generic names)
- 4 minor drug interactions (42 brand and generic names)
A total of 309 drugs are known to interact with Cialis:
- 33 major drug interactions (139 brand and generic names)
- 178 moderate drug interactions (514 brand and generic names)
- 98 minor drug interactions (279 brand and generic names)
A total of 335 drugs are known to interact with Viagra:
- 38 major drug interactions (139 brand and generic names)
- 293 moderate drug interactions (908 brand and generic names)
- 4 minor drug interactions (42 brand and generic names)
If you are receiving therapy with sildenafil you should avoid the regular consumption of large...View more
Sildenafil can lower blood pressure, and combining it with alcohol may further increase this...View more
Tadalafil can lower blood pressure, and combining it with alcohol may further increase this effect...View more
If you are receiving therapy with sildenafil you should avoid the regular consumption of large...View more
Sildenafil can lower blood pressure, and combining it with alcohol may further increase this...View more
- Cardiovascular disease
- Priapism
- Alcoholism
- Hearing loss
- Liver disease
- Seizure disorders
- sickle cell disease
- Bleeding disorders
- Renal dysfunction
- Visual disorders
- Cardiovascular disease
- Renal dysfunction
- Pulmonary disease
- Priapism
- Alcoholism
- Hearing loss
- Liver disease
- Retinitis pigmentosa
- Seizure disorders
- Cardiovascular disease
- Priapism
- Alcoholism
- Hearing loss
- Liver disease
- Seizure disorders
- sickle cell disease
- Bleeding disorders
- Renal dysfunction
- Visual disorders
March 27, 1998
November 21, 2003
March 27, 1998
N/A
N/A
N/A
- Side effects
- Pregnancy warnings
- Breastfeeding warnings
- Dosage information
- Drug images
- Drug interactions
- Support group
- Pricing and coupons
- Side effects
- Pregnancy warnings
- Breastfeeding warnings
- Dosage information
- Drug images
- Drug interactions
- Support group
- Pricing and coupons
- En Español
- Side effects
- Pregnancy warnings
- Breastfeeding warnings
- Dosage information
- Drug images
- Drug interactions
- Support group
- Pricing and coupons
- En Español
- Sildenafil uses
- Advanced reading
- Cialis uses
- Viagra uses
- Monograph (AHFS)
- Prescribing information
- Prescribing information
- Prescribing information
- Erectile Dysfunction
- Sexual Dysfunction - SSRI Induced
- Pulmonary Arterial Hypertension
- Benign Prostatic Hyperplasia
- Erectile Dysfunction
- Erectile Dysfunction
