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Medication

Enclomiphene

Written by the Verra clinical team · Medical review pending · Last updated Oct 4, 2026

Quick answer

Enclomiphene is a selective estrogen receptor modulator that signals the brain to increase the body's own testosterone production. It is used off-label for low testosterone, particularly in men who want to preserve fertility. It is not FDA-approved and requires lab monitoring.

Key takeaways

  • Raises natural testosterone rather than replacing it.
  • May help preserve sperm production.
  • Needs baseline and follow-up labs.

What it is

An isomer of clomiphene.

How it works

It blocks estrogen feedback in the brain, increasing LH and FSH.

Forms and doses we offer

Oral capsules, compounded.

Common side effects

Headache, hot flashes, mood changes and rarely vision changes.

Who should not take it

People with liver disease, uncontrolled thyroid or adrenal problems, or a history of blood clots should discuss with a provider.

Interactions to discuss

Other hormone therapies.

Verra treatments containing enclomiphene

A licensed provider decides whether a treatment is appropriate after your visit.

Questions

What is enclomiphene, and how does it work?

Enclomiphene is a selective estrogen receptor modulator, or SERM. It changes estrogen signals to the brain, which can increase signals that tell the testes to make testosterone. Results vary. Enclomiphene is not FDA-approved. A physician must review your symptoms, health history, and lab results before deciding whether it is appropriate.

Is enclomiphene FDA-approved for low testosterone?

No. Enclomiphene is not FDA-approved for low testosterone or any other use. Calling it off-label can be misleading because that term usually describes an approved drug used for an unapproved purpose. Compounded medications are prepared by a licensed pharmacy for one patient and are not FDA-approved.

Who may be considered for enclomiphene treatment?

Enclomiphene may be considered for some adult men with symptoms and confirmed low testosterone when the brain's hormone signals are low or not high enough. It is not suitable for every cause of low testosterone. A licensed physician in your state decides whether it is appropriate after reviewing your health and labs.

Can enclomiphene preserve fertility while treating low testosterone?

Enclomiphene may support testosterone production without suppressing sperm production in the way testosterone replacement can. Results vary. It does not guarantee preserved fertility or pregnancy. If having children matters to you, discuss semen testing and a fertility evaluation with your physician before starting any treatment for low testosterone.

What lab tests are needed before and during enclomiphene treatment?

Enclomiphene requires lab monitoring before and during treatment. Your physician will usually confirm low testosterone with separate morning tests and may check other hormones, blood counts, and related health markers. The exact tests and timing depend on your symptoms, medical history, fertility goals, and response to treatment.

How should I take enclomiphene, and what if I miss a dose?

Take enclomiphene exactly as your prescription label and physician direct. There is no FDA-approved enclomiphene dosing schedule. Do not increase your dose or copy someone else's plan. If you miss a dose, ask your pharmacist for instructions specific to your prescription. Do not double doses unless your prescriber directs it.

What side effects and warning signs should I watch for with enclomiphene?

Reported side effects of enclomiphene include headache, hot flashes, and nausea. Its long-term safety is not fully established. New vision changes need prompt medical advice before another dose. Seek emergency care for chest pain, sudden shortness of breath, stroke symptoms, or swelling of the face or throat.

Can enclomiphene interact with testosterone, other medicines, or supplements?

Enclomiphene needs a full medication review because interaction data are limited. Tell your physician about testosterone, fertility drugs, other hormone treatments, and all supplements. Do not combine these products on your own. A licensed physician in your state must decide whether your full treatment plan is appropriate.

How soon might I notice results from enclomiphene?

There is no reliable timeline for symptom improvement with enclomiphene. Hormone levels may change before you notice any difference in how you feel. Results vary. Follow-up labs and symptom checks help your physician assess treatment. Do not increase your dose because you have not noticed a quick change.

What happens if I stop enclomiphene or switch to testosterone treatment?

After stopping enclomiphene, testosterone may return toward its earlier level if the underlying cause remains. Symptoms may also return. Results vary. Talk with your physician before stopping or switching treatments. Testosterone replacement can reduce sperm production, so discuss fertility goals before making a change to your treatment plan.

Related reading

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Sources

This page is general information, not medical advice. Results vary. Compounded medications are not FDA-approved. Our editorial policy

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