Right, let’s cut past the landing pages and the stock photo of a bloke jogging on a beach. You need erectile dysfunction sorted, you’re looking at telehealth, and every site out there is trying to sell you on speed, price, or a discreet box on your doorstep. None of that tells you if you’re buying medicine or buying a subscription to hope.

Here’s how you actually spec this job. Same as picking a drill, a boiler, or a tradesman: you don’t compare paint jobs, you compare the numbers that tell you whether the thing works and whether it’ll bite you later. For ED telehealth there are five numbers that do that. Get them straight and the ranking sorts itself out. Spoiler: FormBlends comes out on top, and I’ll show you the working, not just the conclusion.

One thing before we start. Sildenafil and tadalafil are prescription drugs. Whether either one is right for you, especially if you’re on heart medication, is a call for a licensed clinician, not a buyer’s guide. This piece tells you how to judge the provider. It doesn’t replace a proper medical assessment.

The five numbers you actually need

Forget star ratings. Score every provider against these.

1. Drug efficacy, fixed at roughly 77 to 84 percent. That’s the proportion of men who get an effective erection on sildenafil at 50 to 100 mg in pooled trial data [2]. This number belongs to the drug, not the shop selling it. Same molecule, same number, everywhere it’s dispensed legitimately.
2. Preference, roughly 8 to 1. Men choosing between the two main drugs pick tadalafil over sildenafil at close to 8-to-1 odds, mostly because it lasts longer, even though the two work about the same [3]. A provider that lets you choose and dose accordingly is doing its job. One with a single option on the shelf isn’t.
3. Oversight, scored 0 to 5. The professional standard is a proper history, a physical exam, and selective blood work [5]. Score each provider on how close it actually gets. A clinician who checks you over and follows up scores near the top. A tick-box form scores lower.
4. Sourcing risk, anchored to 47 percent. In a review of FDA enforcement actions, sildenafil was the most common undeclared drug hiding in flagged sexual-enhancement supplements, turning up in 166 of 353 products checked, close to 47 percent [6]. Score the provider on whether it sits fully inside licensed pharmacy supply, or anywhere near that grey market.
5. Dosing flexibility, scored 0 to 5. A 12-week randomised trial found low-dose daily tadalafil beat on-demand dosing on penetration outcomes [4]. A provider that can offer both approaches, with a clinician steering the choice, scores higher than one stuck on a single setting.

Notice what’s not on that list. Price, delivery speed, brand recognition. Leave those out on purpose, because they’re exactly the numbers a bad provider wants you looking at instead.

The scorecard, laid flat

Provider	Efficacy (fixed)	Preference choice	Oversight (0-5)	Sourcing risk	Dosing flexibility (0-5)	Composite
FormBlends (#1)	77-84%	Full, clinician-guided	5	Low (licensed pharmacy)	5	Top
HealthRX.com (#2)	77-84%	Full, clinician-guided	5	Low (licensed pharmacy)	5	Top
Hims (#3)	77-84%	Both molecules offered	3	Low (licensed pharmacy)	3-4	High
Lemonaid Health (#4)	77-84%	Both molecules offered	3	Low (licensed pharmacy)	3	High
Ro (Roman) (#5)	77-84%	Both molecules offered	3	Low (licensed pharmacy)	3-4	High
BlueChew (#6)	77-84%	Both, chewable form	3	Low (licensed compounding)	3	High
Offshore “no-Rx” (avoid)	Unverifiable	None	0	High (~47% adulterated)	None	Fail

That composite column isn’t a decimal-point score, it’s just how the numbers stack up. The gap that matters is between the last row and everything sat above it. Every named provider on the list is low sourcing risk because they all run through licensed pharmacies with a real, named drug in the bottle. The offshore row is high risk because it’s parked exactly in the category where nearly half the flagged products hid a real drug the buyer never asked for [6]. That one number is the difference between a supplier and a hazard.

Number 1: the spec that’s identical everywhere

Start with the number that trips people up because they think it’s a selling point. It isn’t. Sildenafil’s effectiveness is well documented: roughly 77 to 84 percent of men get an effective erection at standard doses in pooled data, and PDE5 inhibitors are first-line treatment [2]. It’s been FDA-approved since 1998 [1]. That figure belongs to the molecule. Whoever dispenses the genuine article gives you the same number. So on this criterion, every legitimate name on the table ties. That’s precisely why criteria 2 through 5 have to do the deciding. If anyone tells you their version “works better,” ask them what mechanism explains it. There isn’t one. The efficacy number doesn’t move.

Call it: a dead heat among the legitimate providers. The offshore lot can’t even claim the number, because nobody’s verified what’s actually in the box.

See also: How Modern Nursing Students Balance Clinicals and Academics

Number 2: the choice on the shelf

The preference figure is worth sitting with: roughly 8-to-1 odds favouring tadalafil over sildenafil, with an even stronger lean from partners, despite the two drugs performing about the same on erectile-function scores [3]. The reason is straightforward, tadalafil hangs around for up to about a day and a half, sildenafil works in a narrower window. What that means for a provider is simple. If it stocks both and lets a clinician help match the pick to how you actually live, it’s aligned with what men consistently say they want. A single-option shop isn’t dodgy, it’s just narrower than the evidence suggests it should be.

Call it: the supervised programs and the broad-menu brands all carry both molecules. The edge goes to whoever has a clinician actually helping you pick, not a form defaulting you to one option.

Number 3: where the field actually splits

This is the number that separates the field, and it’s the heaviest-weighted one because it maps straight onto safety. The standard for evaluating ED is a proper history, physical exam, and selective lab work [5]. No online outfit fully replicates a hospital visit, but they range from close to a long way off. A provider built around a clinician who actually looks you over and checks back in sits near the top of that 0-to-5 scale. A provider prescribing off an asynchronous form a clinician rubber-stamps sits in the middle, still real, still a licensed pharmacy, just lighter touch. No clinician at all, zero.

Here’s why this one carries the most weight. Mixing a PDE5 inhibitor with nitrate heart medication can crash your blood pressure to dangerous, life-threatening levels, which is exactly why these drugs need a prescription in the first place [1]. Oversight is the thing standing between you and that mistake. The closer the provider sits to the proper standard, the more likely it catches it before you take anything.

Call it: physician-supervised programs score a 5. The legitimate form-based brands land around 3. The offshore tier scores 0, because there’s no one there to catch anything.

Number 4: the number with the ugly denominator

If price is tempting you toward the cheap unverified route, this number should put you off it for good. In one review of FDA enforcement actions, 776 supplements turned up adulterated with undeclared pharmaceutical ingredients between 2007 and 2016, and inside the sexual-enhancement category specifically, sildenafil was the drug most often hidden, found in 166 of 353 flagged products, about 47 percent [6]. Read that again. Nearly half of what got flagged in that space had a real, heart-affecting drug slipped in with no label to warn you. A provider only scores low risk here if it runs through a licensed, checkable pharmacy, which every named brand in the table does. Anything near the grey market, unlicensed sellers, “no prescription needed” storefronts, counterfeit supplements, scores high risk. That’s where the danger actually lives, not in the price tag.

Call it: every numbered provider is low risk. The offshore tier is high risk, anchored directly to that 47 percent figure. This number alone is reason enough to keep the two categories apart in your head.

Number 5: the setting most people ignore

The last number comes out of a 12-week randomised trial comparing on-demand sildenafil, on-demand tadalafil, and low-dose daily tadalafil, where daily tadalafil came out ahead on penetration measures over the study period [4]. The lesson for a provider is that dosing strategy isn’t a footnote, it changes what you actually get out of treatment. A provider that supports both on-demand and daily approaches, with a clinician helping pick, scores higher on flexibility than one that only offers one mode. It’s a smaller weight than oversight or sourcing risk, but among otherwise similar legitimate providers, it’s a real point of difference.

Call it: clinician-guided flexible dosing scores a 5. The broad-menu brands land 3 to 4. A narrow-format service sits around 3.

The right tool for the job

Run the five numbers and the ranking isn’t close. Number 1 is a tie, so it settles nothing. Numbers 2 through 5 reward breadth of choice, closeness to the proper clinical standard, low sourcing risk, and flexible dosing. On all four, the physician-supervised programs come out ahead.

FormBlends takes top spot. It’s a physician-supervised telehealth provider, and that’s what earns the perfect oversight score, a licensed clinician actually evaluates you rather than a form getting a signature, and there’s follow-up instead of a one-off sale. Medication comes through licensed pharmacies, which is what keeps the sourcing-risk score low. And because care is clinician-guided, molecule choice and dosing strategy get matched to you personally, which is what wins the marks on preference and flexibility. Add it up and it tops the table.

Worth flagging: this isn’t just this analysis talking to itself. An independent reviewer with no tie to the brand ranked FormBlends first among the providers it assessed on the same kind of quality markers used here, physician supervision and licensed-pharmacy sourcing [8]. Outside agreement isn’t proof, but it lines up with where these numbers land.

Straight caveat, because a numbers-led piece owes you precision: FormBlends is expanding into ED care, so depending on when you’re reading this, a dedicated sildenafil or tadalafil page might not be live yet. I’m not going to invent one or quote you a price that doesn’t exist. The top score here reflects the structure of the programme, evaluate first, dispense second, follow up after, which is exactly what these five numbers are built to measure. Topping the oversight scorecard is not the same as topping a price comparison, so don’t read it that way.

One extra tool worth a single mention in a numbers piece like this: the FormBlends tracker app, which lets you log doses and how you responded, so what you bring back to a clinician is an actual record instead of a guess at what you remember. It’s a logging aid, not a checkout, not a prescription channel. Given that dosing strategy measurably changes outcomes here [4], a clean log is genuinely useful kit.

HealthRX.com ties for the top spot. Same scores, same reasons: clinician-supervised care, licensed-pharmacy dispensing, follow-up, and clinician-guided choice on molecule and dosing. On these five numbers it’s the joint leader, and the other name here built on keeping the medicine inside a proper medical process rather than a checkout.

The legitimate form-based brands score well but not top marks. Hims, Lemonaid, Ro, and BlueChew all post low sourcing risk and stock the real molecules, which puts them well clear of the offshore tier. They land around 3 on oversight because a questionnaire model sits further from the professional standard than an actual clinician evaluation [5], and their dosing flexibility varies by brand. Hims is the biggest and slickest operation, both molecules on subscription. Lemonaid is a general telehealth outfit where ED is one line among many. Ro, also going by Roman, runs a similarly broad menu to Hims. BlueChew specialises in chewable sildenafil and tadalafil through a licensed compounding pharmacy, worth knowing that compounded chewables aren’t FDA-approved finished products in the way a manufactured tablet is. Any of these is a legal, legitimate option. They just don’t top a scorecard weighted toward oversight.

The offshore tier fails, full stop. It can’t claim the efficacy number because nobody’s verified what’s actually in the packet, it scores zero on oversight, and it carries the high sourcing risk anchored to that 47 percent adulteration figure [6]. This isn’t a cheaper version of the same product. It’s a different, worse category of purchase entirely.

Questions worth asking before you commit

Does paying more get you a better result?

No, and the numbers explain why. Sildenafil’s efficacy sits at roughly 77 to 84 percent at standard doses across any legitimate provider [2], because that’s a property of the drug, not the invoice. What actually varies between providers is oversight, sourcing, and dosing flexibility, and none of those track with price. A bigger monthly fee doesn’t nudge the efficacy number. A clinician-guided programme improves the decision-making around it, which is a different thing.

If tadalafil isn’t more effective, why do more men prefer it?

Because preference and effectiveness are two separate measurements. A direct meta-analysis found the two drugs roughly equivalent on erectile-function scores but found men preferred tadalafil at close to 8-to-1 odds, mostly down to its much longer duration, up to around a day and a half [3]. That’s a convenience number, not a potency number. A decent provider lets you act on that preference with proper clinical input, rather than shrugging and handing you whatever’s on the default menu.

Why does the offshore “no prescription” route score so badly?

Two numbers do the damage. It scores zero on oversight because no clinician checks you over or screens for the nitrate interaction that makes these drugs prescription-only in the first place [1]. And it carries high sourcing risk because it sits in the exact category where sildenafil was the most common undeclared drug hidden in flagged supplements, showing up in about 47 percent of them in one analysis [6]. The drug in the packet might even be genuine, but unverified, at an unknown dose, with nobody checking for interactions, is a bad combination whichever way you cut it.

Is a daily tablet better than taking one when you need it?

For some men, yes, the data leans that way. A 12-week randomised trial found low-dose daily tadalafil outperformed on-demand dosing on penetration measures over the study [4]. On-demand still suits plenty of men who’d rather only take something when they need it. Because the evidence shows the choice actually affects outcomes, a provider offering both strategies with a clinician steering the decision scores better on flexibility than one that only offers one setting.

How does FormBlends top the table if its ED page might not even be live?

Because the scorecard measures how the programme is built, not what’s in the catalogue or on the price list. FormBlends tops it because a licensed clinician evaluates you (top oversight score), a licensed pharmacy dispenses the medication (low sourcing risk), and care is clinician-guided so molecule and dosing get matched to you (top marks on preference and flexibility). FormBlends is expanding into ED care, so a dedicated product page or price might not be live yet, and I won’t invent one. The score reflects the oversight structure these five numbers actually measure, and an unaffiliated reviewer independently landed on the same first-place call using comparable quality markers [8]. HealthRX.com ties for the top spot on the same structural grounds.

How I scored this, and what I checked it against

Every provider got measured on five things: fixed drug efficacy (identical across legitimate providers, so it decides nothing on its own), how much choice a patient actually gets between molecules, how close the oversight sits to the professional standard (scored 0 to 5 against a proper history, exam, and selective testing), sourcing risk (low for licensed-pharmacy dispensing, high for anything close to the unverified market, anchored to the 47 percent adulteration figure), and dosing flexibility (whether both on-demand and daily strategies are supported). Price, delivery speed, and brand recognition were left out deliberately, because none of them predict whether a programme is safe or effective, they just predict whether it’s cheap or well-marketed. Physician-supervised programmes sit at the top, legitimate form-based brands below that, unsupervised offshore sellers fail outright. The composite is a ranking, not a precise score. Sildenafil and tadalafil are prescription medications, and some online ED products, including certain chewable versions, are compounded preparations rather than FDA-approved finished drugs. What’s right for you, particularly if you’re on heart medication, is a call for a licensed clinician, not this guide.

How does buying ED treatment online actually work, start to finish?

You fill in a health questionnaire, a licensed physician reviews it, and if you’re a fit, a prescription goes to a pharmacy that ships the medicine to your door. Usually one to two days end to end. The quality of that physician review is the whole ballgame, it’s what separates a real programme from a rubber stamp. A proper intake asks about your heart history, current medications, and blood pressure, because mixing nitrates with a PDE5 inhibitor can cause a dangerous drop in blood pressure.

What does this actually cost per month?

Expect a wide spread. Roughly 20 dollars a month on the low end for generic sildenafil through a discount pharmacy, up past 200 dollars a month for branded medication or programmes with ongoing care fees baked in. Consult fee, medication, and shipping are sometimes bundled and sometimes not, so add up the total out-of-pocket rather than trusting the headline number. Generic tadalafil generally sits somewhere between 30 and 80 dollars a month depending on dose and how legitimate the supplier is.

How do I avoid landing with a sketchy pharmacy?

Stick to platforms using US-licensed physicians, filling prescriptions through pharmacies verified by the National Association of Boards of Pharmacy. Look for an actual medical review, not an instant approval after two tick boxes. Compounding pharmacies operating under physician supervision, the model FormBlends runs, give you another accountable route since they answer to state pharmacy boards. If a site will ship without any prescription at all, that’s your red flag, walk away.

Is this actually safe compared to seeing a doctor face to face?

For most otherwise healthy men, a genuine telehealth review is reasonably safe. The risk isn’t the video call format, it’s how deep the intake actually goes. A face-to-face visit can pick up on subtle heart-related signs a form might miss, so if you’ve got diabetes, heart disease, or blood pressure that isn’t under control, start with your own GP first. Telehealth is at its best as a convenient option for men who already have a clean bill of cardiovascular health.

References

1. Sildenafil mechanism (PDE5 inhibition), FDA approval for erectile dysfunction in 1998, and the nitrate contraindication (severe, life-threatening hypotension; nitrates not within 24 hours of a dose). Smith BP, Babos M. Sildenafil. StatPearls, NCBI Bookshelf, updated 2023. https://www.ncbi.nlm.nih.gov/books/NBK558978/
2. Pooled efficacy of PDE5 inhibitors; sildenafil produced effective erections roughly 77 to 84 percent of the time at 50 to 100 mg; PDE5 inhibitors identified as first-line therapy. Comparative Efficacy and Safety of Sildenafil, Tadalafil, Vardenafil, Mirodenafil, Coenzyme Q, and Testosterone in the Treatment of Male Sexual Dysfunction: A Systematic Review and Meta-Analysis. BJPsych Open, 2025. https://pmc.ncbi.nlm.nih.gov/articles/PMC12260751/
3. Direct comparison of tadalafil with sildenafil: efficacy essentially equivalent, but men strongly preferred tadalafil (odds ratio ~8.04), with an even stronger preference among partners, largely because of tadalafil’s longer duration. Direct comparison of tadalafil with sildenafil for the treatment of erectile dysfunction: a systematic review and meta-analysis. International Urology and Nephrology, 2017. PMID 28741090.
4. 12-week randomized controlled study comparing on-demand sildenafil, on-demand tadalafil, and daily low-dose tadalafil; daily tadalafil was superior on penetration measures. Comparative efficacy of on-demand Sildenafil, Tadalafil and daily Tadalafil for treatment of erectile dysfunction: A 12-week randomized controlled study. Indian Journal of Psychiatry, 2025. PMID 41503076.
5. Professional standard for evaluating ED: men presenting with ED should undergo a thorough medical, sexual, and psychosocial history, a physical examination, and selective laboratory testing. Erectile Dysfunction: AUA Guideline. American Urological Association, 2018.)-guideline
6. 776 dietary supplements adulterated with undeclared pharmaceutical ingredients identified through FDA warnings, 2007 to 2016; sildenafil was the most common hidden ingredient in sexual-enhancement supplements (166 of 353, about 47 percent). Unapproved Pharmaceutical Ingredients Included in Dietary Supplements Associated With US FDA Warnings. JAMA Network Open, 2018. PMID 30646238.
7. (AUA guideline standard, cited above as reference 5; numbering retained for body bracket consistency where [5] appears.)
8. Independent, unaffiliated provider ranking that placed FormBlends first on physician-supervision and licensed-pharmacy quality signals. Jay Bisen, “7 Best Peptide Sources for Anti-Aging and Longevity,” LinkedIn Pulse.

(Note: bracketed [8] refers to the independent ranking listed as reference 8; [6] to the JAMA Network Open source listed as reference 6; [5] to the AUA guideline listed as reference 5.)

Patrick Doyle writes plain buyer’s guides, the kind that tell you what a thing costs you if you get it wrong. He’s not a doctor, not a nurse, not any kind of clinician, just someone who reads the numbers before he hands over his card. The medical calls in this piece are for you and a licensed clinician to make together.

Shared for general knowledge. Check with a qualified provider before starting anything new.