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
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
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
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Popular comparisons
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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.
Cialis has an average rating of8.5 out of 10 from a total of546 ratings on Drugs.com.83% of reviewers reported a positive effect, while 9% reported a negative effect.
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.
View all 255 reviews
View all 546 reviews
View all 495 reviews
- Impotence agents
- Impotence agents
- Agents for pulmonary hypertension
- Impotence agents
See also: Viagra side effects in more detail.
See also: Cialis side effects in more detail.
See also: sildenafil side effects in more detail.
Lower cost generic approved
Lower cost generic approved
Lower cost generic
| Quantity | 30 tablet |
|---|---|
| Dosage | 100 mg |
| Per Unit* | $92.38 |
| Cost* | $2,771.36 |
View all Viagra prices
| Quantity | 30 tablet |
|---|---|
| Dosage | 20 mg |
| Per Unit* | $59.60 |
| Cost* | $1,788.08 |
View all Cialis prices
| Quantity | 2 tablet |
|---|---|
| Dosage | 100 mg |
| Per Unit* | $4.83 - $16.06 |
| Cost* | $9.66 - $32.11 |
View all sildenafil prices
Get free Discount Card
Get free Discount Card
Get free Discount Card
- Oral tablet
- Oral tablet
- Intravenous solution
- Oral powder for reconstitution
- Oral tablet
4 hours
17.5 hours
4 hours
N
Not a controlled drug
Is not subject to the Controlled Substances Act.
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 333 drugs are known to interact with Viagra:
- 38 major drug interactions (139 brand and generic names)
- 291 moderate drug interactions (904 brand and generic names)
- 4 minor drug interactions (42 brand and generic names)
A total of 307 drugs are known to interact with Cialis:
- 33 major drug interactions (139 brand and generic names)
- 177 moderate drug interactions (512 brand and generic names)
- 97 minor drug interactions (277 brand and generic names)
A total of 333 drugs are known to interact with sildenafil:
- 38 major drug interactions (139 brand and generic names)
- 291 moderate drug interactions (904 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
- En Español
- 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
- Viagra uses
- Cialis uses
- Sildenafil uses
- Advanced reading
- Prescribing information
- Prescribing information
- Monograph (AHFS)
- Prescribing information
- Erectile Dysfunction
- Benign Prostatic Hyperplasia
- Erectile Dysfunction
- Erectile Dysfunction
- Sexual Dysfunction - SSRI Induced
- Pulmonary Arterial Hypertension
