Clomiphene for men: raising testosterone while keeping fertility
Clomiphene citrate is an FDA-approved fertility drug for women, used off-label in some men to raise their own testosterone production. Enclomiphene, one of its two isomers, is not FDA-approved at all. The evidence is real but small, and Dr. Miranda decides whether it fits you after your history and labs.
Information current as of November 10, 2026. Educational only. Confirm everything here with your own clinician before starting, stopping or changing any medication.
At a glance
Drug class
Selective estrogen receptor modulator (SERM). Not a controlled substance.
How it is taken
A daily tablet. The label dosing is for women. Men’s dosing is off-label and set by the physician.
Approval status
Clomiphene is FDA-approved for ovulatory dysfunction in women who want to become pregnant. Use in men is off-label. Enclomiphene is not FDA-approved.
Who it is for
Men with low testosterone and a pituitary signal that can still respond, often when fertility matters.
Main cautions
Visual symptoms, mood changes, breast tenderness, and a rise in estradiol. Evidence is short-term and limited.
What it is
What clomiphene does in a man
Clomiphene blocks estrogen receptors in the brain. The hypothalamus and pituitary then read your estrogen as low and send out more LH and FSH. Those signals tell the testes to make more testosterone and to keep making sperm. The body is making more of its own hormone, rather than receiving it from outside.
That is the main reason some men and physicians consider it. Standard testosterone therapy does the opposite for sperm: the outside hormone shuts down LH and FSH. Our men’s page says that clomiphene and hCG are options that keep your own production going. This page explains what that means and where the evidence stops.
Clomiphene is a mixture of two isomers: enclomiphene and zuclomiphene. Enclomiphene is the part thought to drive the rise in testosterone. Zuclomiphene stays in the body much longer, and it is thought to add to side effects. Pure enclomiphene has been studied in trials but is not FDA-approved. Compounded versions are not evaluated by the FDA for safety, effectiveness or quality.
Label and off-label
The approved use, and why men’s use is off-label
The FDA label for clomiphene citrate lists one use: ovulatory dysfunction in women who want to become pregnant. It says nothing about men. Prescribing it to a man is legal and common in urology and men’s health clinics, but it is off-label, meaning the FDA has not reviewed it for that purpose and no manufacturer has sought approval for it.
The label also carries warnings that apply to anyone taking it. Visual symptoms such as blurred vision or seeing spots or flashes can occur. The label advises stopping the drug and having an eye exam if they appear. Contraindications include pregnancy, liver disease, uncontrolled thyroid or adrenal problems, and an intracranial lesion such as a pituitary tumor. Your physician will review all of these with you.
Evidence
What the trials actually show
The studies are small, short and mostly measure lab values, not pregnancies or long-term health. Trials in different populations are not directly comparable, and much of the controlled data is for enclomiphene rather than clomiphene.
- Kaminetsky 2013 (12 men): a small trial in men with secondary hypogonadism who had previously used topical testosterone. After six months, testosterone had risen on both enclomiphene and gel. Sperm counts rose in all men on enclomiphene who were measured. The gel did not raise counts above 20 million per mL in the five men who used it at three months.
- Wiehle 2014: a phase II trial. Enclomiphene raised morning testosterone, estradiol and LH to levels similar to a topical gel in men with secondary hypogonadism, with sperm preserved.
- Kim 2016: two phase III trials in overweight men aged 18 to 60 with low or low-normal testosterone and low or normal LH, run for 16 weeks. Testosterone rose in every group. LH and FSH rose with enclomiphene and fell with the gel. The report’s title says sperm counts were preserved with enclomiphene, unlike with gel.
- Helo 2015 (26 men): a 12-week randomized trial in infertile men with low testosterone, comparing clomiphene 25 mg daily with anastrozole 1 mg daily. Testosterone rose in both groups. Estradiol rose with clomiphene and fell with anastrozole.
- Krzastek 2019 (400 men): a retrospective review at two centers, averaging 25.5 months on clomiphene, with 120 men treated longer than three years. Among those, 88% reached normal testosterone and 77% reported better symptoms. About 8% reported side effects, mostly mood changes, blurred vision and breast tenderness. It had no control group.
A 2025 meta-analysis of randomized trials found that SERMs raised total testosterone by an average of 273.76 ng/dL compared with placebo (95% CI 191.87 to 355.66), with high variation between studies. It found no significant difference in testosterone compared with testosterone gel, and higher LH and FSH than with gel. These results show clomiphene can raise testosterone. They do not show it improves symptoms, fertility rates or long-term health in a given man. Individual results vary.
Side effects
Side effects and warnings in plain words
- Visual symptoms: blurring, spots or sensitivity to light. Stop and call if this happens, and expect an eye check.
- Mood changes: irritability, anxiety or low mood were among the most reported effects in the long retrospective series.
- Estradiol rise: testosterone and estradiol both rose in the trials, so breast tenderness is possible. This is a lab you follow.
- Other: the label also lists headache and hot flashes, mostly from use in women. Reports in men vary between studies.
Long-term safety data are limited. The large cardiovascular trial in this field, TRAVERSE, tested testosterone gel, not clomiphene, so it cannot be applied here. If a visual or mood change feels wrong, that is a reason to call, not to push through.
Compared with testosterone
How it compares with testosterone for fertility
Testosterone therapy suppresses sperm production because it silences LH and FSH. Clomiphene does the reverse by raising them. That is why the trials above found preserved or raised sperm counts on enclomiphene while gel users did not keep them. Guidelines from the Endocrine Society and AUA advise against starting testosterone if you plan a pregnancy soon, and the AUA has separate statements for men who want fertility preserved.
Clomiphene works only if the testes and pituitary can respond. A man whose testes have failed (high LH and FSH at baseline) is unlikely to benefit. Other tools exist as well. hCG mimics LH directly and is used off-label to keep the testes active. Anastrozole blocks estrogen formation and is also off-label in men. Which of these, if any, fits depends on your labs and goals.
Monitoring
Monitoring and what happens if you stop
Before starting, labs usually include two morning total testosterone results, LH, FSH, estradiol and, when fertility matters, a semen analysis. After starting, testosterone, LH, estradiol and symptoms are rechecked, typically within the first few months, and the semen analysis is repeated if conception is the aim. Any visual symptom gets a pause and an eye check.
If you stop, your testosterone tends to drift back toward where it started if the underlying cause is still there. If the low level was driven by something reversible, such as excess weight, poor sleep or a medication, treating that cause matters more than any drug.
Summit’s role
What Summit does with clomiphene
Dr. Miranda decides whether this fits you after your history and labs. Clomiphene and enclomiphene use in men is off-label, and the decision comes after a physician evaluation. Nothing here promises that a particular medicine, or any hormone treatment, will be offered to you.
If fertility matters to you, say so in your application. See the pricing page for what care includes.
Common questions
Questions people ask
Is clomiphene FDA-approved for men?
No. Clomiphene citrate is FDA-approved to help women with ovulatory dysfunction become pregnant. Using it in men to raise testosterone is off-label. Enclomiphene is not FDA-approved for any use.
Will clomiphene keep my sperm count up?
That is the reason it is considered. In small trials, enclomiphene preserved or raised sperm counts while testosterone gel did not. The trials were short, and results do not promise a pregnancy and do not apply to every man.
What are the side effects of clomiphene in men?
Reported effects include blurred vision or other visual symptoms, mood changes, breast tenderness and a rise in estradiol. In a retrospective review of 400 men, about 8% reported side effects. Visual symptoms mean stop and call your physician.
How is clomiphene different from testosterone therapy?
Testosterone replaces the hormone from outside and suppresses sperm production. Clomiphene raises LH and FSH so the testes make more testosterone on their own. It only works if the pituitary and testes can respond, and it has far less long-term evidence.
How is my progress checked?
With labs for testosterone, LH, estradiol and sometimes FSH, with a semen analysis if fertility matters, and with symptom review. The physician decides the schedule.
Sources
Where this comes from
All retrieved November 10, 2026.
- Krzastek SC, et al. Long-term safety and efficacy of clomiphene citrate for the treatment of hypogonadism. J Urol 2019. https://pubmed.ncbi.nlm.nih.gov/31216250/
- Helo S, et al. A randomized prospective double-blind comparison trial of clomiphene citrate and anastrozole in raising testosterone in hypogonadal infertile men. J Sex Med 2015. https://pubmed.ncbi.nlm.nih.gov/26176805/
- Kaminetsky J, et al. Oral enclomiphene citrate stimulates the endogenous production of testosterone and sperm counts in men with low testosterone: comparison with testosterone gel. J Sex Med 2013. https://pubmed.ncbi.nlm.nih.gov/23530575/
- Wiehle RD, et al. Enclomiphene citrate stimulates testosterone production while preventing oligospermia: a randomized phase II clinical trial comparing topical testosterone. Fertil Steril 2014. https://pubmed.ncbi.nlm.nih.gov/25044085/
- Kim ED, et al. Oral enclomiphene citrate raises testosterone and preserves sperm counts in obese hypogonadal men, unlike topical testosterone: restoration instead of replacement. BJU Int 2016. https://pubmed.ncbi.nlm.nih.gov/26496621/
- Hohl A, et al. Clomiphene or enclomiphene citrate for the treatment of male hypogonadism: a systematic review and meta-analysis of randomized controlled trials. Arch Endocrinol Metab 2025. https://pubmed.ncbi.nlm.nih.gov/41066380/
- DailyMed. Clomiphene citrate tablets prescribing information. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=79f64995-7425-44c6-9f44-f7d20daeff65
- Bhasin S, et al. Testosterone Therapy in Men With Hypogonadism: An Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab 2018. https://pubmed.ncbi.nlm.nih.gov/29562364/
- Mulhall JP, et al. Evaluation and Management of Testosterone Deficiency: AUA Guideline. J Urol 2018. https://pubmed.ncbi.nlm.nih.gov/29601923/
Confirm with your provider. This page is general education, not medical advice, and it does not diagnose or treat anything. Every medication carries risks and is not right for everyone. Medication is prescribed only after a physician evaluation determines it is appropriate for you. Individual results vary and no outcome is guaranteed. Information current as of November 10, 2026.
Next step
Talk it through with a physician
Apply and Dr. Miranda reviews your history and labs first. He decides whether any hormone treatment fits you, and which one.