'FDA-registered' is not 'FDA-approved'

This section is first because it is the thing most likely to change what you buy. Three phrases get printed on device packaging in the same font, and they mean radically different things.

FDA-approved
Reserved for drugs and for the highest-risk class of devices. The FDA reviewed evidence of safety and effectiveness and licensed the product. Sildenafil is FDA-approved. No constriction ring is.
FDA-cleared
A device the FDA reviewed — usually by showing equivalence to something already on the market, or through De Novo for a genuinely new category — and authorised for a specific claim. Eroxon is cleared this way. So are medical-grade vacuum devices.
FDA-registered
The company told the FDA the establishment and the product exist, and paid the annual fee. There is no review of safety, no review of effectiveness, and no FDA endorsement of any kind. The FDA says so explicitly and warns firms against implying otherwise.

None of this makes Eddie a bad product. A constriction device does not need FDA clearance to work, any more than a pair of crutches does — the physics is not in doubt. It makes the *claim* misleading, and it means the burden of proof falls entirely on evidence the company has chosen to publish. Which brings us to the evidence.

What the evidence actually shows

There are two bodies of evidence worth separating: evidence that constriction works, which is solid, and evidence that *this* device is the best way to do it, which is not.

Constriction as an approach

Well established. If your erection arrives normally and then fades within a minute or two, the failing step is not getting blood in — it is holding it there. That is venous leak, and a band at the base that slows outflow addresses precisely that mechanism. Constriction rings appear in the AUA's erectile dysfunction guideline, they are standard alongside vacuum devices, and they are the one intervention on this site with no drug interactions at all. See our constriction ring guide for the full picture.

Evidence for Eddie specifically

Thinner. The headline '95% of men reported overall positive results' comes from testing the company commissioned and reports itself. That is not automatically wrong — plenty of company-run studies are honest — but it has not been peer-reviewed, the protocol is not available to scrutinise, and 'reported overall positive results' is a softer endpoint than the erectile function scores used in drug trials.

The randomised comparison, presented to the sexual medicine literature
MeasureEddie by GiddyFirmTech
Would recommend the device53.1%79.6%
Statistical significancep = 0.0026 in favour of FirmTech
Preferred for comfort, adjustability and stretchNoYes, significantly
A separate analysis of men with EDSuggested an advantage for firmness
From a randomised survey study comparing two medical-grade penile constriction devices. Both devices had usability issues. The firmness finding in the ED subgroup is the one result that went Eddie's way, and it is arguably the most relevant one if you have ED rather than are using a ring recreationally.

Using it safely — the thirty-minute rule

  1. Measure before you buy. Sizing is the difference between a device that works and one that hurts or slides. Use the manufacturer's guide rather than guessing.
  2. Apply it before or during arousal, positioned at the base with the channel oriented along the underside so the urethra is not compressed.
  3. Start the timer. Thirty minutes.
  4. Remove it immediately if there is numbness, colour change, coldness or pain. None of those are things to push through.
  5. Combine it, do not substitute. A ring works alongside medication or a pump. If you cannot achieve an erection at all, a ring alone will not help — that is what a vacuum device is for.

Is the premium worth it?

A conventional constriction ring costs $10 to $60. Eddie costs roughly $160 to $190 for a two-pack. So the fair question is what the extra $130 buys, and there is a real answer.

  • The oval cross-section. A plain circular ring compresses everything uniformly, including the urethra, which is what makes ejaculation uncomfortable or blocked for some men. Eddie's shape is designed to leave that channel open.
  • Getting it off. Solid rings have to be stretched over an erection to remove — unpleasant at best, and genuinely the reason many men stop using them. Eddie's band arrangement makes this far easier, and the two-pack means you always have a clean one.
  • Sizing. Multiple sizes with a guide, rather than the one-size assumption most cheap rings make.
  • Materials and finish. Medical-grade, latex- and phthalate-free, easy to clean.

That is a real product improvement rather than a branding exercise, and if a cheap ring has already put you off the category it is a reasonable second attempt. What it is not is a different mechanism, a stronger effect, or a regulator's endorsement. You are buying better ergonomics on a physical principle that costs almost nothing to implement.

Products

Reviewed individually

Eddie by Giddy sells several different things, and they are not equivalent — some are FDA-approved generics, some are brand-name originals, and some are compounded formulations that have not been through FDA review. Each is reviewed separately, with the retail price of the same molecule shown alongside.

FAQ

Frequently asked questions

Is Eddie by Giddy FDA approved?
No. It is FDA-registered as a Class II device, which means the company filed a listing with the agency and paid a fee. The FDA did not review whether it is safe or whether it works, and it does not endorse registered products. Marketing that describes it as 'FDA-approved' is inaccurate, and the distinction is worth knowing before you treat the label as evidence.
Does Eddie by Giddy actually work?
The mechanism works — restricting venous outflow does hold an erection that would otherwise fade, and it is a recognised approach in the AUA guideline. Whether this specific device is the best implementation is less clear: the '95% effective' figure is company-run and unpublished, and in the one published randomised comparison, 53% of participants recommended Eddie against 80% for FirmTech.
Who is it right for?
Men whose erection starts firm and then fades within a minute or two. That pattern points to venous leak, which is exactly what a constriction device addresses. If you cannot achieve an erection in the first place, a ring will not help — a vacuum device or medication is the relevant option.
How long can I wear it?
Thirty minutes, maximum, no exceptions. Beyond that you are restricting blood flow that tissue needs and risking injury. Set a timer, and never wear one to sleep.
Can I use it with Viagra or Cialis?
Yes — they address different steps and combining them is common. Medication helps you achieve the erection, the ring helps you keep it. There is no drug interaction because there is no drug.
Is it safe if I take nitrates?
Yes. It is a mechanical device with no pharmacology, so the nitrate contraindication that rules out every PDE5 inhibitor does not apply. That makes rings and vacuum devices the main options for men with angina on nitrate therapy.
How does it compare to a cheap ring from Amazon?
Better shape, much easier removal, proper sizing and better materials — for roughly four to ten times the price. The physical principle is identical. If you have never tried constriction at all, a $15 ring will tell you whether the approach helps you before you spend $190 on a better one.
How much does Eddie cost?
Around $160 to $190 for a two-pack, depending on retailer and any discount. It is a one-off purchase with nothing recurring — no subscription and nothing to cancel.
Sources

What this is based on

We link to primary sources — clinical guidelines, regulator publications and peer-reviewed research — wherever possible. Links open on third-party sites we do not control.

  1. [01]U.S. Food and Drug Administration. Device registration and listing — what it does and does not mean.
  2. [02]American Urological Association. Erectile Dysfunction: AUA Guideline (2018).
  3. [03]National Library of Medicine. PubMed — search the primary literature.
  4. [04]National Institute of Diabetes and Digestive and Kidney Diseases. Treatment for Erectile Dysfunction.
  5. [05]Federal Trade Commission. Health Products Compliance Guidance.