Testosterone is a Schedule III controlled substance in the United States, which means you need a valid prescription from a licensed medical provider to obtain it legally. The process starts with blood work, moves through a clinical evaluation, and ends with a prescription if you meet diagnostic criteria. Here’s how each step works.
What Qualifies You for a Prescription
A prescription for testosterone requires two things: a blood level below a specific threshold and symptoms that match. The American Urological Association sets the diagnostic cutoff at a total testosterone level below 300 ng/dL. But a low number alone isn’t enough. You also need to have symptoms like fatigue, reduced sex drive, erectile difficulty, loss of muscle mass, depressed mood, or difficulty concentrating. If your levels are low but you feel fine, most providers won’t prescribe treatment.
Certain medical conditions will disqualify you from receiving testosterone even if your levels are low. These include a history of breast or prostate cancer, uncontrolled heart failure, a heart attack or stroke within the past six months, untreated obstructive sleep apnea, or a red blood cell concentration (hematocrit) above 50%. If you’re actively trying to have children, testosterone is also off the table, since it suppresses sperm production and can cause infertility.
The Blood Test Process
Your provider will order a blood draw to measure your total testosterone. This test needs to happen in the morning, ideally before 10 a.m., because testosterone levels peak shortly after waking and decline throughout the day. An afternoon test could give a falsely low reading. You’ll typically need to fast for 8 to 12 hours beforehand, so most people schedule the draw first thing in the morning after sleeping through most of the fast. Avoid gum, smoking, and exercise before the test, as all of these can affect results.
If your first result comes back below 300 ng/dL, expect to repeat the test on a separate day. A single low reading isn’t considered sufficient for diagnosis because testosterone fluctuates naturally. When total testosterone falls in the borderline range of roughly 230 to 317 ng/dL, your provider may also check free testosterone to get a clearer picture. Below 231 ng/dL, free testosterone testing generally doesn’t add diagnostic value.
Which Doctors Prescribe Testosterone
Several types of doctors can diagnose low testosterone and write a prescription. Primary care physicians, urologists, and endocrinologists all treat the condition. Research comparing these specialties at a large academic medical center found that urologists followed diagnostic and treatment guidelines most consistently, particularly those specializing in male infertility. That said, many men start with their primary care doctor and only get referred to a specialist if the case is complicated or initial treatment doesn’t work well.
Telehealth is another option. Federal telemedicine flexibilities, extended through 2026, currently allow providers to prescribe controlled substances like testosterone without requiring an in-person visit first. Several online men’s health clinics use this pathway. The prescription still must be issued for a legitimate medical purpose by a licensed practitioner, and you’ll need the same blood work regardless of whether your appointment is virtual or in person.
Delivery Methods and What They Cost
Once you have a prescription, you’ll choose from several FDA-approved formats. The most common options are:
- Injections: Typically testosterone cypionate or enanthate, injected weekly at doses of 100 to 200 mg. Many men learn to self-inject at home. Cost runs $30 to $150 per month without insurance.
- Topical gels: Applied daily to the skin, usually the shoulders or upper arms. These maintain steadier hormone levels than weekly injections but cost significantly more: $200 to $500 per month without insurance.
- Implantable pellets: Small crystalline pellets placed under the skin during a brief office procedure. A typical implant of 10 to 14 pellets targets testosterone levels of 500 to 800 ng/dL and lasts three to six months.
These prices cover the medication itself. Initial consultations, lab work, and ongoing monitoring can add $100 to $500 depending on the provider, so factor that into your budget. Insurance coverage varies widely. Some plans cover testosterone for a confirmed diagnosis of hypogonadism, while others require prior authorization or limit coverage to certain formulations. Injections are almost always the cheapest route.
Monitoring After You Start
Getting the prescription isn’t the end of the process. Testosterone therapy requires regular follow-up blood work to make sure the treatment is working safely. At a minimum, you’ll have your hematocrit checked at baseline, again at three to six months, and then annually. Testosterone can thicken your blood by boosting red blood cell production, and a hematocrit climbing above 50% means treatment may need to be paused or adjusted.
Men aged 55 to 69, or those at higher risk for prostate cancer (including men with a first-degree relative who had it), should have a PSA level and digital rectal exam before starting therapy, again at 3 to 12 months, and then on a schedule aligned with standard prostate cancer screening guidelines. Your provider will also recheck your testosterone levels to confirm the dose is putting you in the target range.
Why Skipping the Prescription Is Risky
Testosterone purchased without a prescription, whether from overseas pharmacies, underground labs, or gym contacts, carries serious health and legal risks. Possessing a Schedule III controlled substance without a prescription is a federal crime. Beyond legality, products obtained outside regulated pharmaceutical channels may have uncertain composition and purity. You have no reliable way to verify the dose, sterility, or contents of what you’re injecting.
Unsupervised use also means no blood monitoring. Without regular hematocrit checks, dangerously thickened blood can go undetected. Oral forms of testosterone and related compounds, particularly those modified to survive digestion (known as 17-alpha-alkylated androgens), carry a risk of liver damage that ranges from cholestasis to liver tumors. Research on men using testosterone outside medical supervision has found abnormal semen results in 79% of cases and outright infertility in 18%. Other common side effects of unmonitored use include severe acne on the trunk and breast tissue growth.
The supervised medical route exists specifically to catch these problems early. The blood tests, dose adjustments, and regular check-ins aren’t bureaucratic hurdles. They’re the difference between a treatment that improves quality of life and one that quietly causes harm.