Enclomiphene Side Effects in Men: What Trials and Sellers Report

This guide gathers what the trials and the sellers say about side effects, whether enclomiphene works, its FDA status, and its price. We list prices only, never doses. Every enclomiphene and testosterone price we track is on our testosterone price page.

What enclomiphene is

Enclomiphene citrate is a pill for men with low testosterone. It does not add testosterone to the body. Instead, it blocks estrogen's feedback at the brain, so the brain sends more of the hormones LH and FSH. Those hormones tell the testes to make testosterone and sperm.

Enclomiphene is one half of an older drug. Clomiphene (Clomid) is a mix of two forms. The clomiphene label says it "is a mixture of two geometric isomers Z (or cis) and E (or trans)" (DailyMed: clomiphene citrate label, read 14 November 2026). An isomer is a mirror-like version of the same molecule. Enclomiphene is the E form. The label adds: "Some data suggest that zuclomiphene has greater estrogenic activity than enclomiphene." Our enclomiphene vs clomiphene guide covers that difference.

Enclomiphene side effects in men: the sellers' lists

With no FDA label, the most detailed lists come from the programs that sell it. Each one says its list is not complete.

Strut Health lists, for its Mojo capsule: "Headache, visual symptoms (blurring, spots, flashes), abdominal or pelvic bloating, hot flashes, nausea, dizziness, mood changes, and acne from Enclomiphene" (Strut Mojo, read 14 November 2026).

Maximus says "In clinical studies, reported side effects were generally infrequent and can include headache, nausea, dizziness, hot flashes, or mild GI symptoms." (Maximus enclomiphene, read 14 November 2026) GI symptoms means stomach and gut upset.

Rugiet lists "GI upset, headache, and increased estrogen levels" for its enclomiphene with tadalafil (Rugiet Enclomiphene+, read 14 November 2026).

Maximus also lists a rare, serious risk on the same page: "Blood clots in the leg or lung (deep vein thrombosis or pulmonary embolism)". Leg swelling, chest pain or sudden shortness of breath need urgent care.

Visual symptoms: the one to take seriously

Blurring, spots or flashes appear on Strut's list. The clomiphene label, for the parent drug, explains why they matter. It says "blurring or other visual symptoms such as spots or flashes (scintillating scotomata) may occasionally occur" (DailyMed: clomiphene citrate label). It adds that "The visual disturbances may be irreversible, especially with increased dosage or duration of therapy."

That label was written for women taking clomiphene, not for men taking enclomiphene. Still, the two drugs are close relatives. If your vision changes, stop and tell the prescriber the same day.

Estrogen and mood

Rugiet names higher estrogen as a common effect. In a 2014 trial, enclomiphene raised estradiol, the main estrogen in men, along with testosterone. The authors reported "increased morning serum T, E2, and LH levels similar to those obtained with a topical T gel" (Fertility and Sterility, 2014). E2 is estradiol.

A 2024 study at one US clinic compared men who used clomiphene and later switched to enclomiphene. Side effects were less common on enclomiphene, "including decreased libido (P=0.001), reduced energy (P=0.044), and mood changes (P=0.03)" (Translational Andrology and Urology, 2024). The study looked back at 66 patients' records, so it is weaker evidence than a trial that assigns treatment by chance.

Does enclomiphene work?

For raising testosterone in the right men, the trials say yes. Two phase III trials, the large final-stage kind, compared it with testosterone gel over 16 weeks. The authors wrote: "Enclomiphene citrate consistently increased serum TT, LH and FSH, restoring normal levels of serum TT." (BJU International, 2016) TT is total testosterone.

The same paper found a difference from the gel on sperm. "Enclomiphene citrate treatment maintained sperm concentrations in the normal range," while the gel group's sperm counts were not kept up. That is the main reason men who want children ask about it.

Two limits matter. First, the trials measured blood levels over a few months, not long-term outcomes. Second, it only works if your testes can respond. Rugiet's page says enclomiphene "is not effective for men who have a diagnosis of primary hypogonadism", where the testes themselves are the problem. Only labs can tell which kind you have.

Is enclomiphene FDA-approved?

No. No enclomiphene product is FDA-approved, and we found none listed in Drugs@FDA on 14 November 2026. Programs that sell it say theirs is compounded, which means a pharmacy mixes it for each patient.

Maximus says so plainly: "Compounded medications are not approved or evaluated for safety, efficacy, or quality by the FDA." (Maximus enclomiphene) In plain words, nobody outside the pharmacy checked how well it works or how it is made. The parent drug, clomiphene, is FDA-approved, but only for women's fertility.

Enclomiphene for men: what it costs online

Prices come from each seller's own page, with the date we read it. Several need labs or a membership on top.

Our ranked list of online low testosterone programs scores each seller. If you want enclomiphene and an ED drug in one product, our enclomiphene and tadalafil guide lists who sells the combination.