The best medicine to boost testosterone is the one that matches why your level is low. For a man with confirmed low testosterone who is not trying to have children, testosterone replacement therapy has the strongest evidence. For a man whose brain signals are low, or who wants to protect his fertility, a medicine that helps the testes make their own testosterone, such as enclomiphene, clomiphene or hCG, may fit better.
Over-the-counter testosterone boosters are a different category. They are sold as supplements, the evidence behind them is thin, and some have been found to contain undeclared drugs. Below, each option is compared by how it works, who it suits and what it risks.
No medicine should be chosen before the diagnosis is confirmed. The American Urological Association recommends two early-morning total testosterone tests, with a level below 300 ng/dL as a reasonable cutoff, before low testosterone is diagnosed.
| Option | Best fit | Fertility | FDA status |
|---|---|---|---|
| 1. Testosterone replacement (injection) | Confirmed low T, no near-term plans for children | Lowers sperm production | FDA-approved for hypogonadism |
| 2. Enclomiphene | Secondary low T, fertility goals | Sperm usually maintained in trials | Not FDA-approved; compounded |
| 3. Clomiphene citrate | Secondary low T, fertility goals | Generally maintained | Approved for women; off-label in men |
| 4. hCG | Low LH, fertility, or alongside TRT | Supports sperm production | FDA-approved for this use in men |
| 5. Aromatase inhibitors | Selected men with high estradiol | Specialist use | Off-label in men |
| 6. OTC boosters and supplements | Not a treatment for diagnosed low T | Varies | Not reviewed by FDA before sale |
| 7. Weight loss, sleep and exercise | Almost every man | Neutral to positive | No prescription needed |
In this article
Is there any medicine to boost testosterone?
Yes. Several prescription medicines raise testosterone, but they work in two different ways. Testosterone therapy adds the hormone from outside the body. Selective estrogen receptor modulators and hCG instead push the testes to produce more of their own, which matters for men who want to keep their fertility.
Which route makes sense depends on whether the problem starts in the testes (primary hypogonadism) or in the brain’s signaling (secondary hypogonadism). LH and FSH results help a clinician tell the two apart, which is why the labs come before any prescription.
1. Testosterone replacement therapy
Testosterone replacement therapy (TRT) is the most direct way to raise a low level, because it supplies the hormone itself. Injectable testosterone cypionate is one of the most widely used forms, and testosterone products are FDA-approved for men with hypogonadism confirmed by symptoms and repeated low morning levels.
The trade-off is fertility. Testosterone from outside the body signals the brain to slow LH and FSH, so the testes make less of their own testosterone and fewer sperm. The AUA advises against prescribing testosterone to men who are currently trying to conceive. Monitoring matters too:
- Testosterone levels, timed to the dose
- Hematocrit, because red blood cell counts can rise
- Blood pressure, which the FDA now flags across testosterone products
- PSA and prostate symptoms, depending on age and risk
In 2025 the FDA updated testosterone labeling after the TRAVERSE trial found no increase in major cardiovascular events in men treated for hypogonadism, while adding a class-wide warning about blood pressure increases. A guide to TRT monitoring covers which blood tests follow-up usually includes.
2. Enclomiphene
Enclomiphene is an oral selective estrogen receptor modulator. It blocks estrogen feedback at the brain, which raises LH and FSH and lets the testes make more of their own testosterone. Because the body keeps producing sperm, it is often discussed for men with secondary hypogonadism who want to stay fertile.
In phase III trials published in BJU International, enclomiphene raised total testosterone in overweight men with secondary hypogonadism while keeping sperm concentrations in the normal range, whereas topical testosterone lowered them. The important caveat is that enclomiphene by itself is not FDA-approved for any use. It is prescribed as a compounded medicine, and it does not help when the testes themselves cannot respond.
Enclomiphene and clomiphene are also illegal as dietary supplement ingredients, so a “booster” that lists either one is a red flag rather than a shortcut.
3. Clomiphene citrate
Clomiphene is the older parent drug, a mix of enclomiphene and a second isomer, zuclomiphene. It is FDA-approved to induce ovulation in women and is used off-label in men. Systematic reviews report that it raises total testosterone in men with secondary hypogonadism, and some men stay on it for years under monitoring.
Side effects can include mood changes, breast tenderness and visual symptoms, which need prompt review. Zuclomiphene lingers in the body much longer than enclomiphene, one reason some clinicians prefer the single isomer.
4. hCG (human chorionic gonadotropin)
hCG acts like LH and stimulates the testes directly. Chorionic gonadotropin products are FDA-approved for hypogonadotropic hypogonadism in males and to stimulate sperm production in that setting. Clinicians also use it alongside testosterone to help preserve testicular function.
It is given by injection, it requires monitoring of testosterone and estradiol, and it is not a fix for primary testicular failure.
5. Aromatase inhibitors
Anastrozole and letrozole reduce the conversion of testosterone to estradiol, which can raise testosterone in selected men, often men with obesity and a low testosterone-to-estradiol ratio. The AUA lists aromatase inhibitors among the options for men with low testosterone who want to maintain fertility.
They are off-label in men, and pushing estradiol too low can harm bone density, mood and libido. This is a specialist tool, not a general booster.
6. Over-the-counter testosterone boosters
Products sold as testosterone boosters are dietary supplements, so the FDA does not review them for safety or effectiveness before they are sold. A 2021 systematic review in Advances in Nutrition found the most consistent signals for fenugreek and ashwagandha extracts, but most trials were small, short and done in young, healthy men.
The bigger risk is what may be inside. The Department of Defense’s Operation Supplement Safety warns that testosterone and sexual-enhancement products are prone to contamination, including hidden sildenafil, tadalafil and anabolic steroids. Zinc and vitamin D tend to help mainly when a true deficiency exists.
Ayurvedic and homeopathic testosterone boosters
Ashwagandha is the main Ayurvedic herb with randomized trial data, and its effect on testosterone is modest. Homeopathic products have no reliable evidence of raising testosterone. Herbal blends can also interact with prescription medicines and have been linked to liver injury, so they belong on the medicine list a clinician reviews.
7. Weight loss, sleep and strength training
Excess body fat lowers testosterone, partly by converting it to estradiol and partly through insulin resistance, and meaningful weight loss is consistently linked with higher levels. Short or broken sleep and untreated sleep apnea lower it too.
- Lose weight if you carry excess abdominal fat
- Aim for 7 to 9 hours of sleep, and ask about snoring or apnea
- Lift weights two to three times a week
- Limit alcohol and review medicines such as opioids
These steps cost nothing and help whatever else is chosen.
How to choose the right testosterone medicine
Start with a properly timed testosterone blood test, then a repeat morning test if the first result is low. LH, FSH, estradiol, prolactin and hematocrit help sort out the cause and the safest route.
- Planning children in the next year or two: a fertility-preserving option such as enclomiphene, clomiphene or hCG is usually discussed first
- Primary testicular failure: testosterone replacement is the realistic option
- High estradiol or obesity: weight loss and, in selected cases, an aromatase inhibitor
- Normal testosterone with symptoms: look for another cause before any hormone
Through Atlas HRT, an independent Florida-licensed physician reviews your labs and decides whether testosterone cypionate, enclomiphene or neither fits, and a licensed partner pharmacy dispenses any prescription.
We think “best” is the wrong first question. Most men searching for a testosterone booster need two morning blood tests before they need any product. Once the cause is clear, the choice between replacing testosterone and helping the body make its own usually becomes obvious, and fertility plans often decide it.
Common questions
What is the strongest medicine to increase testosterone?
Testosterone replacement raises levels most directly and predictably. It also suppresses sperm production, so it is not the right first choice for a man trying to conceive.
Is there a pill that boosts testosterone?
Yes. Enclomiphene and clomiphene are oral medicines that raise the body’s own testosterone, and oral testosterone undecanoate capsules replace it directly. All require a prescription and monitoring.
Do over-the-counter testosterone boosters work?
The evidence is weak and inconsistent, and some products contain undeclared drugs. They are not a treatment for diagnosed low testosterone.
Can you buy testosterone-boosting medicine without a prescription?
No. Testosterone, enclomiphene, clomiphene and hCG all require a prescription in the U.S. Products that claim to contain them without one are being sold illegally.
What are the side effects of testosterone booster medicines?
They depend on the drug. TRT can raise hematocrit and blood pressure and lower sperm counts; enclomiphene and clomiphene can cause mood changes and visual symptoms; aromatase inhibitors can affect bone density. A clinician sets the monitoring plan.
Atlas HRT Team
Reviewed by · Last reviewed September 2026Atlas HRT specializes in testosterone replacement therapy and enclomiphene for men in Florida.
Sources
- American Urological Association. Evaluation and Management of Testosterone Deficiency (2018; validity confirmed 2024)
- U.S. Food and Drug Administration. FDA issues class-wide labeling changes for testosterone products (February 2025)
- Kim ED, McCullough A, Kaminetsky J. Oral enclomiphene citrate raises testosterone and preserves sperm counts in obese hypogonadal men, unlike topical testosterone. BJU International, 2016
- Huijben M, et al. Clomiphene citrate for men with hypogonadism: a systematic review and meta-analysis. Andrology, 2022
- Chorionic gonadotropin for injection (Novarel) prescribing information
- Smith SJ, et al. Examining the effects of herbs on testosterone concentrations in men: a systematic review. Advances in Nutrition, 2021
- Operation Supplement Safety, U.S. Department of Defense. Clomiphene and enclomiphene: drugs, not dietary supplements
- Operation Supplement Safety, U.S. Department of Defense. Testosterone-booster and sexual-enhancement dietary supplements
