Enclomiphene dosage and evidence
Written by Aaron CuhaReviewed Sep 2026
The short answer
Enclomiphene is one half of the fertility drug clomiphene. Men get it off-label from compounding pharmacies to raise their own testosterone while keeping sperm production. The FDA has never approved it on its own and has turned it down more than once.
Evidence grade for Enclomiphene: Preliminary. The rule: studied in people, but no published study has had people take it. The sum on this page: 1 human study where nobody was given it. A grade counts how much has been done to people, not whether it works.
- People given it
- 0
- Human studies
- 0
- Found nothing
- 0
Dose
No human dose established
No published study on this page has given this compound to people and reported a result.
1 human study where nobody was given it
6 effects reported, 4 unwanted, 2 wanted, by people using it, not a trial
Goal pages: Hormones and growth hormone
In plain English
In plain English, from Aaron
This is how I would explain it to a friend. The evidence, with the numbers, is further down the page.
Enclomiphene is a pill that makes your own body produce more testosterone. It works by tricking the brain into thinking estrogen is low. Unlike testosterone shots, it keeps sperm production going. The FDA has never approved it, so it comes from compounding pharmacies.
What people take it for
- Raising low testosterone without shutting down fertility.
- An alternative to testosterone replacement.
- Keeping fertility while on testosterone therapy.
What studies in people showed
In a mid-sized trial, men took enclomiphene or testosterone gel. The enclomiphene group ended up with more testosterone and kept their sperm counts. Gel tends to push sperm counts down. A 2025 review that pooled the studies found testosterone went up across them. The FDA turned it down because nobody showed that raising testosterone this way made men healthier. There is no long-term data on bones, heart attacks or strokes.
What people report
Reports, not study results
The good
- Testosterone and the two brain hormones that drive it climb fast on blood work, sometimes within two to four weeks.
- Less irritability, less brain fog and more drive. Several people say this fades over time.
The bad
- The top complaint: blood work looks great, but libido and erections do not improve. It is the most common reason people stop.
- Trouble sleeping, sore nipples and worry about breast growth, chills and hot flashes, low mood and anxiety.
- Restarting after testosterone takes three to six months, and forum moderators say only a minority truly restart.
- No long-term data on broken bones, heart attacks or strokes.
Where these come from: Forum patterns from ExcelMale threads on dosing and restarts, as summed up on this page. Those are self-reports. The trial results come from the trial and review on this page.
My bottom line
If you want kids someday and your testosterone is low, this is a real conversation to have with a doctor. Get full hormone blood work first. Better numbers do not always mean you feel better, and plenty of users find that out the hard way.
An opinion, not a finding. I am a coach, not a doctor.
What it has been measured to do
Measured in people
Goals Enclomiphene has been tested for in people, biggest studies first. We count only what the studies on this page say, so the real numbers may be higher.
- Testosterone and male hormonesno headcount stated · 1 study
What people using it report
Real people telling you what happened to them. Nobody checked it, and the people who post are not a fair sample, so it cannot prove anything works. It is still the best guide on this page to what people actually do with Enclomiphene, what they expect, and what goes wrong. The full account, including the negative reports, is below.
32 of the 36 indexed goals have no study of any kind behind Enclomiphene
No study in people, animals or cells on this page reports a result for these. That does not prove Enclomiphene does nothing for them. It does mean anything you have heard about Enclomiphene and one of these did not come from a study cited here.
Show full evidence
What is Enclomiphene?
Enclomiphene is one half of the fertility drug clomiphene. Men get it off-label from compounding pharmacies to raise their own testosterone while keeping sperm production. The FDA has never approved it on its own and has turned it down more than once.
Enclomiphene blocks estrogen signals in the brain. The pituitary gland answers by releasing more of the hormones LH and FSH, which tell the testes to make more testosterone. In trials against testosterone gel, men on enclomiphene ended up with higher testosterone and kept their sperm counts. A 2025 review that pooled the studies backs up the hormone effect. The FDA declined to approve it as Androxal, most recently in 2015. It questioned whether raising testosterone this way made people healthier. So it is only available as a compounded prescription. Online clinics built around it launched in 2026. There is no long-term data on broken bones, heart attacks or strokes.
How does Enclomiphene work?
It blocks estrogen receptors in the part of the brain that controls hormones. The brain answers by sending more of the signals that tell the testes to make testosterone.
What do people who took Enclomiphene report?
This is what real people say happened to them, good and bad. Nobody measured it. A report cannot tell a real effect from the lift people get just from expecting it to work, from a diet or training change made at the same time, or from what was really in the vial. We still put it near the top. It is the next best thing to a study in people: what happens when real people use it, including what goes wrong.
- Described amounts cluster at 12.5 mg, taken either daily or every other day, with 25 mg daily appearing in restart attempts. Every other day is what people suggest to each other when side effects show up, on the reasoning that daily exposure accumulates.
- The most consistent pattern in the whole discussion is a gap between blood work and symptoms. Testosterone and the two brain hormones that drive it, LH and FSH, are described as climbing quickly, sometimes within two to four weeks and in some accounts from very low figures to the top of the range over months, while libido and erectile symptoms are repeatedly described as not following. That disconnect is the single most cited reason people give for stopping, including some who ran it close to two years with good numbers throughout.
- Improvements people do describe are mood related: less irritability, less brain fog, more willingness to do things. Several describe those effects diminishing over time.
- Side effects described include insomnia, nipple sensitivity and worry about gynecomastia, temperature dysregulation with alternating chills and short hot flashes, low mood, anxiety and skin sensitivity. In restart contexts these are described as lasting two to three months before easing.
- For restarts the timeline described is long, with three to six months given as the minimum before judging anything and longer still for fertility markers. Forum moderators put the share who achieve a genuine restart at a minority, and at least one detailed account describes a strong pituitary response with the testes not following.
- Sourcing discussion centres on compounding pharmacies, on regulatory action against compounded versions, and on markup between suppliers, with availability treated as an open question.
Sources: Enclomiphene dosing, restart and experience threads on ExcelMale, found by site-restricted search and read directly, September 2026. Nothing above is attributed to any specific post and no post is reproduced.
The evidence, in charts
Fig. 1a · how many people
1study in people cited, but none says how many people took part
number of people not stated
We do not draw a total, because none of the studies in people on this page gives one. Read the sources below for what each study measured.
We read the number of people from the source lines on this page. Where a line gives no number, we count nothing for it. We do not guess.
Fig. 1b · evidence mix
1 of 2 sources here is a study in people. The rest is not.
- Study in people · done in people150%
- Review of studies · sums up other studies150%
Counted from the list of sources on this page. It counts only what we cite, so there may be more studies out there. A review counts once, however many studies it sums up.
Fig. 2 · evidence over time
Sources here come from just two years, 2014 and 2025.
Too few different years on this page to draw a timeline.
Fig. 3 · legal status at a glance
US
Not approved
UK
Not approved
AU
Not approved
CA
Not approved
Not approved in any of the four countries shown. This is what the law says, not a verdict on the science. See Legal status below for the full text and any notes.
Fig. 4 · how much does what
Nobody has tested different amounts in people
This chart would show how the effect changes as the amount goes up. For this compound, nobody has measured that in people. So we leave it empty. We will not borrow an animal chart and pretend it works the same in people.
Fig. 5 · what the molecule is
- Kind of compound
- Small molecule
- Molecule weight
- 406.0 Da
- Half-life
- Stated in words, not a numbersee the exact wording below
- Chain length
- None on file
No amino acid sequence is on file for Enclomiphene, which is expected: a small molecule is not built from amino acids.
The studies we cite
- Study in people2014Enclomiphene citrate stimulates testosterone production while preventing oligospermia: a randomized phase II clinical trial comparing topical testosterone
Enclomiphene raised testosterone without flattening sperm counts, which is the whole point of it. In a mid-sized trial it was compared with testosterone gel rubbed on the skin. Men on enclomiphene ended up with more testosterone and kept their sperm counts. Testosterone treatment itself tends to push sperm counts down.
Raised testosterone while preserving sperm concentration.
- Review of studies2025Enclomiphene for male hypogonadism: systematic review and meta-analysis
A 2025 review that pooled the studies. Testosterone went up across them. There is little data on long-term health results.
Consistent testosterone increase; limited long-term outcome data.
Where to buy Enclomiphene
5 sellers list Enclomiphene in our latest read. They are ranked by trust score, then by archive rating, then by certificate tier, then by the lowest price per milligram. Archive evidence is counted before source-backed. Each path is out of 4, and the two are not added. A higher price does not raise the score. The letter is the certificate chip. 0 of them have a published certificate that names Enclomiphene.
Some seller links may pay this site when you buy through them. A payment never changes a seller's tier or rank, and no seller has a say in any page.
| Seller | Trust score | Vial sizes | From, per mg | Certificate for Enclomiphene | Seller link |
|---|---|---|---|---|---|
| Pivot Labs Global | 53 FairSource-backed 2 of 4. Archive evidence 1 of 4.C | 12.5 mg | $11.2 | None found for Enclomiphene | View |
| Triantex | 49 WeakSource-backed 3 of 4. Archive evidence 2 of 4.A | 12.5 mg, 25 mg | $3.00 | None found for Enclomiphene | View |
| USA Peptide Science Shop | 45 WeakSource-backed 2 of 4. Archive evidence 1 of 4.B | 25 mg | $7.16 | None found for Enclomiphene | View |
| PeptiMed | 41 WeakSource-backed 1 of 4. Archive evidence 1 of 4.C | 25 mg | $11.2 | None found for Enclomiphene | View |
| Modern Aminos | 28 InsufficientSource-backed 1 of 4. Archive evidence 0 of 4.C | 6.25 mg, 12.5 mg | $6.72 | None found for Enclomiphene | View |
- LC Lab-confirmed: the issuing laboratory echoed this certificate back
- A Current certificate, independent laboratory named, laboratory not yet checked
- B Certificate published, but no laboratory link, older than a year, or the laboratory did not recognise the published lookup
- C No certificate could be read
Every listing and vial size for Enclomiphene · How the trust score is counted
Sellers named on the price pages are ranked by certificate tier, then price, and any affiliate income is disclosed there. Naming a seller is not a recommendation to buy or use anything.
Common questions
Has Enclomiphene been tested in people?
Not in a completed trial cited here. 1 human study where nobody was given it. Enclomiphene is one half of the fertility drug clomiphene. Men get it off-label from compounding pharmacies to raise their own testosterone while keeping sperm production. The FDA has never approved it on its own and has turned it down more than once.
What is the Enclomiphene dosage?
No human dose established. No published study on this page has given this compound to people and reported a result. 1 human study where nobody was given it
Is Enclomiphene FDA-approved?
Not FDA-approved (the FDA turned down its applications with 'complete response' letters); available on prescription, made up by compounding pharmacies
Enclomiphene or TRT?
Enclomiphene raises your own testosterone and keeps fertility. TRT replaces testosterone from outside and shuts down sperm production. Which one fits you is a medical decision with trade-offs. Neither this page nor a seller can make it for you.
Why is it not FDA-approved?
The FDA sent rejection letters on the Androxal application. It questioned whether raising testosterone in these men was shown to make them healthier.