Overview
Erectile dysfunction is one of the most treatable medical conditions, yet remains significantly underdiagnosed and undertreated due to stigma. Online telehealth has made prescription ED treatment faster, more private, and dramatically cheaper than in-person care — generic sildenafil (same active ingredient as Viagra) is available for as little as $17/mo online.
Top ED Treatment (Sexual Health) clinics: quick comparison
What you need to know
Sildenafil vs tadalafil: sildenafil (Viagra generic) lasts 4–6 hours, taken as needed. Tadalafil (Cialis generic) lasts 36 hours, available in daily low-dose or as-needed high-dose.
Daily tadalafil (2.5–5mg): treats ED on demand without needing to time medication. Also treats benign prostatic hyperplasia (BPH) symptoms.
Chewable options: BlueChew offers chewable sildenafil and tadalafil — faster onset than tablets for some patients.
Pricing: generic sildenafil starts at $17/mo online. Tadalafil slightly more. Both are small fractions of brand-name prices.
A physician consultation is required — ED can be a symptom of cardiovascular disease, diabetes, or testosterone deficiency. Reputable clinics screen for these.
How to choose
Evaluate any ED Treatment (Sexual Health) clinic on these criteria before signing up: true annual cost (monthly × 12 + labs if not included), physician credentials, monitoring protocol, and cancellation terms.
Take our 2-minute quiz → and we'll rank every ED Treatment (Sexual Health) clinic against your exact budget and treatment preferences.
Frequently asked questions
What is the difference between sildenafil and Viagra?
Sildenafil is the generic version of Viagra — the same active molecule, same mechanism of action (PDE5 inhibitor), same efficacy. The patent on Viagra expired in 2017, allowing generic manufacturers to produce sildenafil at a fraction of the brand-name price. There is no clinical difference in effectiveness between brand-name Viagra and generic sildenafil at equivalent doses. The difference is purely price: Viagra costs $60–$80 per pill without insurance; generic sildenafil is available for $0.50–$2 per pill online.
How quickly does sildenafil work?
Standard sildenafil tablets take 30–60 minutes to reach peak blood concentration. Taking it on an empty stomach speeds absorption; high-fat meals can delay it by 60–90 minutes. The medication is active for approximately 4–6 hours. Chewable formulations (BlueChew) may dissolve and absorb slightly faster for some patients. Tadalafil (Cialis) has a longer half-life — effects begin in 30–60 minutes and persist for up to 36 hours.
Is it safe to get ED medication online?
Yes, through licensed telehealth clinics that conduct a physician consultation before prescribing. ED medications (sildenafil, tadalafil) are contraindicated with nitrate medications (used for heart conditions) — this is the primary safety screen any legitimate clinic performs. They're also used cautiously in men with uncontrolled blood pressure or recent cardiovascular events. Every clinic listed on ClinicLayer requires a medical evaluation before prescribing.