In short
- Viagra and generic sildenafil are prescription-only in the US; a licensed clinician can prescribe them after an online visit.
- Most online visits are a health questionnaire reviewed within about 24 hours; some states require a video visit.
- Generic sildenafil cost $1.60 to $6.25 a dose online on October 18, 2026, against $96 to $139 for brand-name Viagra.
- Sildenafil must never be taken with nitrates or riociguat, and the clinician will ask about your heart before prescribing.
- The FDA says sexual enhancement products sold without a prescription are likely to contain dangerous hidden ingredients.
You can get Viagra, or its FDA-approved generic, sildenafil, online legally in the US by having a licensed clinician prescribe it after an online visit. The medication then ships from a licensed pharmacy. Drugs@FDA lists Viagra as a prescription drug, and there is no over-the-counter version in the US.
The visit is usually a health questionnaire that takes a few minutes, reviewed within about a day. Generic sildenafil cost $1.60 to $6.25 a dose at the providers we checked on October 18, 2026. Here is how it works, what the clinician looks for, and how to avoid sites that sell ED pills illegally.
Step 1: choose a provider
Online ED providers are telehealth practices: a licensed clinician in your state reviews your health and decides whether to prescribe, and a licensed US pharmacy fills the prescription. They differ on price, on how you are seen, and on their terms:
- Price and billing: some charge per dose, some per month, and some bill several months at once.
- How you are seen: most use an online questionnaire; Hone Health uses a lab test and a physician video visit, and some states require a video visit with any provider.
- What they prescribe: generic sildenafil and tadalafil, brand-name Viagra and Cialis, or compounded chewables, which are not FDA-approved.
Our ED provider rankings score each one on price, care, options, transparency and experience. We are paid by the providers we list, and scores and the order of each list come from our published rating method.
Step 2: the online visit
Expect questions about your erections, your general health, the medicines you take and your blood pressure. Some providers ask for more:
- Lemonaid Health needs a recent blood pressure reading, which you can get free at a participating pharmacy, and its medical team usually reviews the consult within 24 hours.
- BlueChew says a provider usually reviews your profile within 24 hours.
- Rex MD says many patients won’t need to speak with a provider directly, though some states require an audio or video call.
- Hone Health starts with a $65 test of 50+ biomarkers and a private video consult with a licensed physician.
Answer honestly. The questions exist because ED pills interact dangerously with some medicines and some heart conditions.
Step 3: what the clinician checks
The Viagra label sets out who should not take it and when the dose should be lower:
- Nitrates: sildenafil must not be used with nitrates in any form, such as nitroglycerin for chest pain or “poppers”, because together they can cause a dangerous drop in blood pressure.
- Riociguat: the same applies to guanylate cyclase stimulators such as riociguat, used for some lung conditions.
- Heart health: a clinician should check that your heart is healthy enough for sex.
- Alpha-blockers: men taking these for blood pressure or the prostate should be stable on them and start at 25 mg.
- Age and other conditions: a 25 mg starting dose is suggested for men over 65 and for some liver and kidney problems.
The label also warns about erections lasting more than 4 hours, which need emergency care, and sudden loss of vision or hearing. Most men start at 50 mg about an hour before sex, at most once a day. Our sildenafil page covers dosing in more detail.
What to tell the clinician
Have this ready before you start the questionnaire:
- every medicine you take, including nitrates, alpha-blockers, blood pressure medicines, HIV medicines such as ritonavir and antifungals such as ketoconazole, which can raise sildenafil levels;
- any heart attack, stroke or serious heart-rhythm problem in the last 6 months, chest pain during sex, heart failure, or blood pressure below 90/50 or above 170/110, groups in which the label says sildenafil has not been studied in controlled trials;
- any past sudden vision loss (an eye condition called NAION) or the inherited eye disease retinitis pigmentosa;
- any other ED treatment you use, because the label says combining treatments has not been studied and is not recommended.
If any of these apply, the clinician may ask for a video visit or advise you to see a doctor in person. That is the system working as it should.
Step 4: brand or generic
Generic sildenafil tablets are FDA-approved for ED and contain sildenafil citrate, the active ingredient in Viagra, at the same 25, 50 and 100 mg strengths. The difference is the price. On October 18, 2026, brand-name Viagra cost $96 a dose at Rex MD and $139 at Hims, while generic sildenafil cost $1.60 to $6.25. Our guides to Viagra’s cost and where generic sildenafil is cheapest list every price.
If you want an alternative, tadalafil (the active ingredient in Cialis) lasts longer and can be taken daily. See Viagra vs Cialis.
Step 5: the medication arrives
If you are prescribed, the pharmacy ships the medication in plain packaging. Delivery times we found:
- Strut Health: typically within 2 business days.
- Rex MD: ships within two days, with free rush shipping.
- BlueChew: ships within 24 hours of approval.
- Henry Meds: most people receive medication 8 to 10 business days after the visit.
Several providers do not accept returns once a prescription ships, so check the refund terms before you pay.
Chewables are not Viagra
Some providers sell sildenafil as a chewable or dissolving tablet. These are compounded: a pharmacy prepares them for an individual prescription, and they are not Viagra, not a generic of it, and not FDA-approved. On September 9, 2025, the FDA sent BlueChew a warning letter over claims that implied its chewables were the same as FDA-approved drugs. If you want Viagra or its approved generic, ask for the tablet.
How to spot an unsafe seller
A legal online provider always requires a prescription and an assessment of your health. Be wary of any site that:
- sells Viagra or sildenafil without a prescription or any health questions;
- has no licensed US pharmacy, or no US address or phone number;
- sells “natural” or “herbal” pills that promise the same effect.
The FDA warns that male enhancement supplements, ED treatments and stamina pills sold online and in stores are “likely to be contaminated with dangerous hidden ingredients”, and that they pose a serious health risk. A hidden dose of sildenafil is especially dangerous for anyone taking nitrates. The FDA’s BeSafeRx program links to a tool for checking whether an online pharmacy is state-licensed.
What it costs, start to finish
| Cost | Typical range (October 2026) |
|---|---|
| Online visit | Free at most providers; $25 one-time at Lemonaid; $65 lab test and consult at Hone |
| Generic sildenafil | $1.60 to $6.25 a dose |
| Brand-name Viagra | $96 to $139 a dose |
| Shipping | Free at most providers we checked; extra at Keeps |
| Insurance | Usually not used; Medicare Part D excludes drugs used only for ED |
The bottom line
The legal way to get Viagra online is a short visit with a licensed clinician, then a prescription filled by a licensed pharmacy. Choose a provider on price at your strength, how you are seen and the refund terms, answer the health questions honestly, and never take sildenafil with nitrates. Start with our ED rankings or the ED hub.
Questions, answered
Can I get Viagra online without seeing a doctor in person?
Is it legal to buy Viagra online?
How long does it take to get Viagra online?
Do I need a blood pressure reading?
Sources
- Viagra prescribing information (Viatris, DailyMed, rev. 11/2023)
- Drugs@FDA: Viagra, NDA 020895 (prescription)
- FDA: sexual enhancement and energy product notifications (content current Oct 15, 2026)
- FDA: BeSafeRx, your source for online pharmacy information
- FDA warning letter to Dermacare LLC dba BlueChew (Sep 9, 2025)
- Lemonaid Health: ED treatment (read Oct 18, 2026)
- Rex MD: FAQ (read Oct 18, 2026)
- Strut Health: FAQ (read Oct 18, 2026)
- Hims: ED treatment (read Oct 18, 2026)
- Hone Health: ED treatment (read Oct 18, 2026)