Quad by MEDVi is a clinician-prescribed telehealth option marketed for erectile dysfunction (ED). MEDVi says its sublingual liquid combines sildenafil, tadalafil, apomorphine and L-citrulline; published ED research identifies PDE5 inhibitors, the drug class that includes sildenafil and tadalafil, as a first-line option, while the finished four-ingredient combination is a separate prescription decision.
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What is MEDVi Quad, and is it legitimate?
MEDVi presents Quad as a prescription service for adults in eligible U.S. locations. The process starts with an online intake. MEDVi says an affiliated clinician reviews the case and decides whether a prescription is appropriate. MEDVi also says it is a platform, not the medical provider or pharmacy.
The product page markets Quad as a liquid placed under the tongue. It lists four ingredients: sildenafil, tadalafil, apomorphine and L-citrulline. The advertised strengths, dose count, dispensing pharmacy for a particular order, and exact directions are not published on the product page. Ask for those details before you pay.
MEDVi’s terms say users must be at least 18 and live in a location where the service is available. A payment or intake form does not itself guarantee a prescription.
Does Quad really work for ED?
Quad is designed to address erection concerns through the ingredients MEDVi advertises. The product page says sildenafil and tadalafil support blood-flow response, apomorphine acts through the nervous system and L-citrulline is included for nitric-oxide support.
A 2014 PubMed review on diabetes and ED describes PDE5 inhibitors as a first-line treatment option and notes that ED can have several pathways, including nerve, blood-vessel and hormonal changes. That research concerns treatment options discussed in clinical care; it does not turn one ingredient study into a result for every compounded combination.
L-citrulline is an amino acid that can raise L-arginine levels and support nitric-oxide production, according to a 2018 L-citrulline review. That may help explain why it appears in the formula. The amount in Quad is not published, so you cannot compare it with research doses from the label alone.
If you are deciding between Quad and a single medicine such as Viagra, the practical question is not which is “better” for everyone. Ask the prescribing clinician why the four-part formula is being considered for you, what each ingredient adds, and whether a simpler option fits your health history and current medicines.
How fast does it start, and how long does it last?
MEDVi markets Quad as fast-acting and says its sublingual format may begin working in as little as 10 to 15 minutes. It also says tadalafil in the formula can remain active for up to 36 hours. Those are the maker’s timing claims, not a promise of your response or a dosing instruction.
MEDVi does not publish how many doses are in a Quad order. It also does not publish how long a vial or monthly shipment lasts. Before ordering, ask support to confirm the dose count, refill schedule, shipping timing and what happens if a clinician changes your plan.
What does Quad by MEDVi cost?
Prices shown on October 12, 2026: MEDVi advertises Quad starting at $114 per month, reduced from $179, and says consultation, free rush shipping and support are included. Prices and bundles can change, so check the checkout for today’s total and ask whether a renewal price, taxes or other charges apply. When you are ready to see the current offer or begin the intake, use the Product Page.
| Buyer question | What MEDVi publishes |
|---|---|
| Starting price | $114 per month |
| Consultation | Included, according to MEDVi |
| Shipping | Free rush shipping, according to MEDVi |
| Doses per order | Not published |
| Ingredient strengths | Not published |
What side effects and safety questions should you bring up?
Because Quad combines multiple active ingredients, bring a complete medication list to the clinician before a prescription decision. Include prescriptions, over-the-counter products, supplements and any past reaction to an ED medicine. Ask specifically which medicines or health conditions could change whether Quad is appropriate for you.
The L-citrulline research is relevant because it involves nitric-oxide pathways and possible blood-pressure effects. If you have a blood-pressure concern or take medicine that affects blood pressure, make that part of the conversation. A primary care visit is also a good place to review your medication bottles and recent changes; this medication review checklist can help you prepare.
ED can be linked with diabetes, vascular health, nerve changes, hormones or other factors. The same 2014 review notes that diabetes can affect nerves, blood vessels and hormones. If ED is new, changing, or affecting your relationship, bring it up plainly. You deserve a plan built around the cause as well as the symptom.
What do the reviews and testimonials mean?
MEDVi’s product page displays customer testimonials and says it has served more than 50,000 men. Treat those comments as individual experiences, not a forecast of your result. The useful next question is whether the program can clearly answer your own practical concerns: what you will receive, what the clinician is prescribing, how refills work, and how to reach support.
For a partner, a helpful role is simple: make room for an honest conversation without blame. ED can be stressful for both people. Offer to help make a question list, attend a primary care visit if invited, or help keep the medication list current. Pressure and silence rarely make a health decision easier.
What can you do naturally while you sort out treatment?
There is no single fastest answer for every person. A published review of ED in men with diabetes places lifestyle changes, diabetes management and evaluation of low testosterone alongside treatment discussions. For some people, that means bringing sleep, activity, smoking, alcohol, stress and blood-sugar questions to a primary care visit instead of trying to solve everything through a supplement or one purchase.
Harvard Health notes that many herbal products advertised for ED may have serious side effects and may not be effective. Read its guide to herbal ED supplements before adding a separate product to a prescription plan. This matters especially when you are already considering a multi-ingredient formula.
How do cancellation, refunds and delivery work?
MEDVi says you can request cancellation by email or through the patient portal chat. Its policy asks for the request at least 72 hours before the next billing date. MEDVi says a full refund is available if its healthcare provider disqualifies you for a medical reason. It also says prescription medications already ordered for a patient cannot be returned for refund or reuse, while damaged or incorrect medication may be replaced through the pharmacy after you contact support.
Save your order confirmation and cancellation request. If continuity of care matters to you, ask what records you can access, how a refill is reviewed, and who to contact if your delivery is delayed. Readers considering MEDVi for another kind of telehealth care can also compare the service questions in MEDVi safety questions.
Before you order Quad
- Ask for the exact prescribed strengths, directions and number of doses.
- Ask which pharmacy will dispense your prescription and how to contact it.
- Share your full medication and supplement list with the clinician.
- Confirm today’s total, renewal timing and whether the listed starting price applies to your order.
- Ask what to do if the medicine is damaged, incorrect or delayed.
- Submit cancellation at least 72 hours before the next billing date if you do not want renewal.
By the Primary Care Evidence Guide Team
This article is for general information purposes only and does not constitute medical advice. Consult your doctor or qualified healthcare provider before making changes to your health routine.