Enclomiphene is not FDA-approved, so you cannot pick it up at a regular pharmacy the way you would a standard prescription. It is currently available only through compounding pharmacies, and you need a prescription from a licensed provider who is willing to prescribe it off-label. Getting it involves a medical evaluation, blood work confirming low testosterone, and a provider who works with a compounding pharmacy that stocks it.
Why Enclomiphene Isn’t at Your Local Pharmacy
Enclomiphene has never received approval from the FDA or the European Medicines Agency. Its manufacturer discontinued development in 2021, and the EMA previously reviewed a branded version called EnCyzix for low testosterone in men but declined to approve it. Without approval, no commercial drug product exists for pharmacies to dispense.
In 2023, the FDA’s Pharmacy Compounding Advisory Committee voted 8 to 4 against adding enclomiphene citrate to the official list of bulk drug substances that compounding pharmacies can freely use under section 503A of federal law. Several committee members cited a lack of clinical efficacy evidence. Despite that vote, some compounding pharmacies still prepare enclomiphene under existing regulatory pathways, and providers continue prescribing it off-label. The legal landscape is gray, not black and white, and availability can shift as the FDA updates its enforcement priorities.
The Prescription Process
You cannot buy enclomiphene over the counter or without a prescription. To get one, you need a consultation with a healthcare provider, either in person or through a telehealth platform. The provider will order blood work to confirm that your testosterone levels are genuinely low. They also need to determine that you have secondary hypogonadism, meaning the problem originates in the brain’s signaling to the testes rather than in the testes themselves. Enclomiphene does not help men whose testes cannot produce testosterone (primary hypogonadism), and it is not intended for men with normal testosterone levels or those seeking athletic performance enhancement.
Typical screening includes a total testosterone test drawn in the morning, when levels peak, along with measurements of luteinizing hormone (LH) and follicle-stimulating hormone (FSH). These two hormones tell the provider whether your brain is sending adequate signals to your testes. Low or inappropriately normal LH and FSH alongside low testosterone points toward secondary hypogonadism, the scenario where enclomiphene can help. Providers may also check estradiol levels, a complete blood count, and liver function before writing a prescription. A history of blood clots generally rules you out as a candidate.
Where Prescriptions Are Filled
Once you have a prescription, it goes to a compounding pharmacy rather than a chain like CVS or Walgreens. Compounding pharmacies prepare medications from raw ingredients to order, which means quality and pricing vary between pharmacies. Some telehealth platforms that prescribe enclomiphene have partnerships with specific compounding pharmacies and handle the process end to end: you complete your consultation, get lab work, and the medication ships to your door if you qualify.
Because compounding pharmacies are not selling a standardized FDA-approved product, there is no universal price. Out-of-pocket costs typically range from roughly $50 to $150 per month depending on the pharmacy, the dose, and whether you’re going through a telehealth service that bundles consultation fees. Insurance almost never covers compounded enclomiphene since it lacks FDA approval.
How Enclomiphene Works
Enclomiphene blocks estrogen receptors in the brain, specifically in the hypothalamus and pituitary gland. Normally, estrogen signals those areas to slow down production of LH and FSH. When enclomiphene blocks that feedback loop, your brain ramps up LH and FSH output, and your testes respond by producing more testosterone. The key advantage over testosterone replacement therapy (injections, gels, or patches) is that your testes stay active. Testosterone replacement shuts down your body’s own production and can reduce sperm counts, sometimes to zero. Enclomiphene preserves or even improves fertility.
You may have heard of clomiphene (Clomid), which doctors have prescribed off-label for male low testosterone for years. Clomiphene is actually a mix of two mirror-image molecules: enclomiphene (the trans isomer) and zuclomiphene (the cis isomer). Enclomiphene acts as a pure estrogen blocker. Zuclomiphene does the opposite in some tissues, partially activating estrogen receptors and lingering in the body much longer due to a slower elimination rate. Isolating enclomiphene removes that contradictory activity. In clinical studies, the 25 mg dose produced significantly higher LH levels than lower doses, consistent with stronger estrogen blockade at the brain level.
What to Expect on Treatment
Enclomiphene is taken as a daily oral capsule or tablet. Most providers start with a dose in the range of 12.5 to 25 mg per day and adjust based on follow-up blood work. Testosterone levels typically begin rising within the first few weeks, though the full hormonal effect and noticeable symptom improvement (energy, libido, mood) often take one to two months to develop. Your provider will recheck labs after four to six weeks to see how your levels have responded and whether the dose needs adjustment.
Ongoing monitoring matters. Providers track not just testosterone but also estradiol, hematocrit (a measure of red blood cell concentration), and liver enzymes. Because enclomiphene increases the hormonal signals that drive testosterone production, estradiol can rise alongside testosterone since the body naturally converts some testosterone into estrogen.
Side Effects and Risks
The most commonly reported side effects are headache, nausea, and dizziness. Because the drug increases gonadotropin output and can raise estradiol, there is a theoretical increase in blood viscosity, the thickness of the blood. This mechanism is linked to a higher likelihood of clotting events. Reported vascular risks with clomiphene-class drugs include deep vein thrombosis and pulmonary embolism, though these events are uncommon.
Vision changes deserve special attention. Cases of decreased vision, light sensitivity, double vision, and blind spots have been documented with clomiphene use. In at least one published case, a patient developed damage to the optic nerve likely caused by reduced blood flow in the small arteries supplying the eye, a condition called non-arteritic anterior ischemic optic neuropathy. If you notice any change in your vision while taking enclomiphene, that warrants prompt evaluation. Other less common but reported effects include breast tenderness, elevated triglycerides, and elevated blood pressure.
Because enclomiphene never completed the full FDA approval process, long-term safety data beyond a few years is limited. This is one of the trade-offs of using a compounded, unapproved medication, and it is worth discussing with your provider before starting.
Who Should Not Take Enclomiphene
Enclomiphene is not appropriate for everyone with low testosterone. Men with primary hypogonadism, where the testes themselves are damaged or absent, will not benefit because the drug works by telling the testes to produce more. If the testes cannot respond, boosting the signal does nothing. Men with a history of blood clots, stroke, or clotting disorders face elevated risk from any drug that increases blood viscosity. Significant liver disease, hormone-sensitive cancers, and uncontrolled cardiovascular conditions are also reasons providers typically decline to prescribe it.