Enclomiphene vs TRT: which is right for you?

Enclomiphene is a daily pill that signals your body to make more of its own testosterone, while TRT gives you testosterone from outside and switches much of your own production off. If keeping your fertility matters, enclomiphene has the better case; if you want the most established treatment with an FDA-approved option, TRT does. Online, enclomiphene starts at $98 a month and injectable TRT at $79.

The trade-off is evidence. Testosterone has decades of use and FDA-approved products. Enclomiphene is not an FDA-approved drug, and the trials behind it are short. This guide walks through how each works, what the studies show and where they stop, and which online programs offer each.

How each one works

Your brain controls testosterone through two signaling hormones, LH and FSH. LH tells the testes to make testosterone; FSH supports sperm production. Estrogen feeds back to the brain and turns that signal down.

Enclomiphene blocks that estrogen feedback, so the brain sends out more LH and FSH and the testes make more testosterone themselves. It is one of the two isomers that make up clomiphene, a fertility drug (Saffati et al., 2024). In the phase III trials, LH and FSH went up on enclomiphene and down on testosterone gel (Kim et al., BJU Int 2016).

TRT replaces testosterone directly, by injection, gel, cream or capsule. The brain senses the added hormone and lowers LH and FSH. Testosterone rises in the blood, but the testes are told to do less.

That difference is why the two behave so differently on fertility.

Fertility: the main reason men choose enclomiphene

The FDA label for Xyosted, an approved testosterone injection, states that large doses of testosterone can suppress sperm production, that reduced fertility is seen in some men on TRT, and that "the impact on fertility may be irreversible" (Xyosted label).

Enclomiphene was built to avoid that. In two randomized, placebo-controlled phase III trials in overweight men aged 18 to 60 with secondary hypogonadism, enclomiphene kept sperm concentration in the normal range over 16 weeks, while the testosterone gel group showed "a marked reduction in spermatogenesis" (Kim et al., BJU Int 2016). Testosterone rose in every treatment group.

The American Urological Association guideline covers counseling and treatment for men who want to keep their fertility (AUA guideline). If you plan to have children, raise it with the clinician before you start anything, not after.

What the evidence shows, and where it is thin

The evidence that enclomiphene raises testosterone is reasonably consistent. The evidence on everything else is limited.

Three gaps stand out:

• Duration. The main trials ran 16 weeks. There are no long-term outcome trials of enclomiphene on heart health, bone or prostate. The authors of the 2024 review say more research is needed on long-term effects.
• Who was studied. The phase III trials enrolled men with secondary hypogonadism, meaning the testes work but the brain's signal is low. They tell you nothing about men whose testes are the problem.
• Symptoms. The trials measured hormone levels and sperm counts. A higher testosterone number is not the same as feeling better, and the abstracts we read report lab values, not symptom outcomes.

The case report is one patient and cannot show that enclomiphene caused the arrhythmia. Its authors note that enclomiphene's cardiovascular safety "remains poorly characterised." That is a fair summary of the wider picture.

Testosterone has its own risks, and its label is long. In 2025 the FDA removed boxed-warning language on heart attack and stroke risk after the TRAVERSE trial found no increase in adverse cardiovascular outcomes, and added a class-wide warning about higher blood pressure (FDA).

FDA status: enclomiphene is not an approved drug

No enclomiphene product is FDA-approved. A company called Repros filed for approval under the name Androxal, and the FDA issued a Complete Response Letter in late 2015 saying "the design of enclomiphene Phase 3 studies is no longer adequate to demonstrate clinical benefit" and recommending more phase III studies (BioSpace). We found no later approval.

What online programs sell is compounded enclomiphene, made by a pharmacy. The FDA's list of bulk substances nominated for compounding, updated May 14, 2026, places enclomiphene citrate in Category 1, "Bulk Drug Substances Under Evaluation" (FDA list). In other words, the FDA has not decided on it. The FDA also states that compounded drugs are not FDA-approved and that it does not verify their safety, effectiveness or quality before they are marketed (FDA).

Testosterone is different: FDA-approved products exist, including Xyosted injections and Kyzatrex capsules, alongside compounded versions. Testosterone is also a Schedule III controlled substance (Xyosted label), so online prescribing depends on a DEA telemedicine rule that runs through December 31, 2026 (Federal Register).

Small print worth reading: Taurus Meds' enclomiphene page lists "Access to FDA approved medications" in its comparison table (taurusmeds.com). That line does not mean enclomiphene itself is FDA-approved.

Which online programs offer each

From the programs we track, checked October 26, 2026. Prices for every plan are on our price table.

Hone lists enclomiphene alongside testosterone and cream on its TRT page (honehealth.com), and Hims sells enclomiphene, compounded injections and Kyzatrex from one page (hims.com).

How to decide

Enclomiphene is the more reasonable first option if:

• You want children now or in the next few years.
• Your labs show low testosterone with low or normal LH, the pattern the trials studied.
• You prefer a pill and accept that the drug is compounded and the long-term data are thin.

TRT is the more reasonable option if:

• Fertility is not a concern.
• Your testes do not respond to LH, so stimulating them will not help.
• You want an FDA-approved product with decades of use behind it.

Either way, a legitimate program will test you first. The AUA guideline says a man is a candidate for testosterone therapy only with both low levels and symptoms or signs (AUA guideline).

FAQ

Enclomiphene vs TRT: which is right for you?

If keeping your fertility matters and your testes still respond to the brain's signal, enclomiphene is the option designed for that. If fertility is not a concern or you want an FDA-approved product, TRT is the established choice. A clinician should decide using your labs.

Is enclomiphene FDA-approved?

No. The FDA issued a Complete Response Letter in 2015 instead of approving it, and the versions sold online are compounded. The FDA lists enclomiphene citrate as a compounding substance still under evaluation.

Does enclomiphene work as well as testosterone?

On testosterone levels, the trials and a 2025 meta-analysis found results similar to testosterone gel. On symptoms and long-term outcomes, there is not enough data to say.

Will TRT make me infertile?

It can. The Xyosted label says testosterone can suppress sperm production and that the effect on fertility may be irreversible. Some programs add hCG; ask before you start.

Can I switch from TRT to enclomiphene?

Some men do, but there are no large trials of switching. Discuss it with the prescribing clinician and expect new lab work.

See which programs offer enclomiphene and TRT at what price on our TRT price table, or compare the top programs on best TRT programs.