Sildenafil Online
Brand names: Viagra
Sildenafil is the generic form of Viagra and the most widely prescribed medication for erectile dysfunction. It's a PDE5 inhibitor that increases blood flow to enable and maintain erections. FDA-approved since 1998, it has an extensive safety and efficacy record.
How Sildenafil Works
Sildenafil inhibits the enzyme PDE5, which normally breaks down cGMP — a molecule that relaxes smooth muscle and increases blood flow in the penis. By blocking PDE5, sildenafil allows cGMP to accumulate, resulting in improved blood flow and easier erections when sexually aroused. It does not cause spontaneous erections — arousal is still required.
What to Expect
Sildenafil typically takes effect within 30-60 minutes of taking it and lasts 4-6 hours. It's taken as-needed, not daily (though some providers prescribe low-dose daily use). Effects are immediate — there is no buildup period.
Sildenafil Pricing Comparison
Sorted by lowest starting price.
Prices shown are based on our most recent research and may not reflect current pricing. Telehealth providers update their pricing frequently. Always verify pricing directly with the provider before purchasing.
| Provider | Score | Product | Price/mo | Includes | |
|---|---|---|---|---|---|
| Zealthy | 60 | Hardies Sublingual ED Tablets | $9–$55 | ● Consults● Shipping○ Labs | Visit |
| Generic Sildenafil / Tadalafil | $5–$30 | ● Consults● Shipping○ Labs | |||
| LifeMD | 68 | Sildenafil (via Rex MD) | $14–$38 | ● Consults● Shipping○ Labs | Visit |
| Hims & Hers | 78 | Sildenafil (generic Viagra) | $16–$44 | ● Consults● Shipping○ Labs | Visit |
| GoodRx | 74 | ED Subscription | $18–$59 | ● Consults● Shipping○ Labs | Visit |
| Ro | 77 | Sildenafil | $20–$48 | ● Consults● Shipping○ Labs | Visit |
| BlueChew | 65 | Sildenafil Chewable (SIL) | $25–$135 First month free with promo code (pay ~$5 shipping) | ● Consults● Shipping○ Labs | Visit |
| MAX (Sildenafil + Tadalafil Sublingual) | $40–$135 | ● Consults● Shipping○ Labs | |||
| GOLD (Sildenafil + Tadalafil + Oxytocin + Apomorphine) | $75–$269 | ● Consults● Shipping○ Labs | |||
| Winona | 75 | Sildenafil Arousal Cream | $79 | ● Consults● Shipping○ Labs | Visit |
| Rugiet | 66 | Rugiet Ready (3-in-1 ED) | $80–$140 Buy 2 months, get 1 free | ● Consults● Shipping○ Labs | Visit |
| MEDVi | 71 | MEDVi QUAD (4-in-1 ED Sublingual) | $119–$199 | ● Consults● Shipping○ Labs | Visit |
Common Side Effects
- •Headache
- •Facial flushing
- •Nasal congestion
- •Indigestion
- •Dizziness
- •Visual disturbances (blue-tinted vision, light sensitivity)
Serious Side Effects
- !Priapism (erection lasting 4+ hours — medical emergency)
- !Sudden hearing loss (rare)
- !Sudden vision loss (rare — associated with NAION)
- !Dangerous blood pressure drop when combined with nitrates
Sildenafil Is Not For
- ✗People taking nitrates (nitroglycerin, isosorbide) — life-threatening interaction
- ✗People with severe cardiovascular disease without physician clearance
- ✗People taking alpha-blockers without dose adjustment
- ✗People with recent stroke or heart attack
Sildenafil — Frequently Asked Questions
What is the difference between sildenafil and tadalafil?
▾
Both are PDE5 inhibitors for ED. Sildenafil (Viagra) works within 30-60 minutes and lasts 4-6 hours — best for as-needed use. Tadalafil (Cialis) lasts up to 36 hours and can also be taken daily at a low dose. Tadalafil offers more spontaneity; sildenafil is typically cheaper.
How much does sildenafil cost through telehealth?
▾
Generic sildenafil through telehealth costs $11-48/month depending on the provider and quantity. This is dramatically cheaper than brand-name Viagra. Most telehealth providers include the consultation fee in this price.
Do I need to take sildenafil every day?
▾
Most people take sildenafil as-needed, 30-60 minutes before sexual activity. Some providers prescribe a lower daily dose for men who want to be ready at any time. Your telehealth provider will recommend the right approach based on your needs.
Can I drink alcohol with sildenafil?
▾
Moderate alcohol intake is generally considered acceptable, but heavy drinking can increase side effects (dizziness, low blood pressure) and reduce the medication's effectiveness. Most providers recommend limiting alcohol when using sildenafil.
Medical disclaimer: The information on this page is for educational purposes only and is not medical advice.Sildenafil requires a prescription from a licensed healthcare provider. Side effects, risks, and suitability vary by individual. Always consult your doctor before starting, stopping, or changing any medication. TelehealthMatch is not a healthcare provider.
Not sure which provider is right for you?
Take the Match Quiz