What Is Natesto? Uses, Dosage, and What You Need to Know in 2026

Natesto is a brand-name prescription testosterone gel that is applied inside the nose — making it unlike any other testosterone replacement therapy on the market. If you or someone you know has been prescribed Natesto, or if you are exploring options for treating low testosterone (hypogonadism), this guide covers everything you need to know.

What Is Natesto?

Natesto (testosterone nasal gel) is the only FDA-approved intranasal testosterone product in the United States. It was approved by the FDA in 2014 and is manufactured by Acerus Pharmaceuticals Corporation. It contains 5.5 mg of testosterone per pump actuation in a slightly yellow gel formula.

Natesto is classified as an androgen — a male sex hormone — and is a Schedule III controlled substance under the Controlled Substances Act due to its potential for misuse. It is not available over the counter and requires a valid prescription from a licensed provider.

What Is Natesto Used For?

Natesto is FDA-approved for testosterone replacement therapy in adult males with conditions associated with a deficiency or absence of endogenous testosterone, specifically:

Primary hypogonadism (congenital or acquired) — Caused by testicular failure (e.g., Klinefelter syndrome, bilateral torsion, orchitis, vanishing testes syndrome, chemotherapy).

Hypogonadotropic hypogonadism (congenital or acquired) — Caused by a problem with brain signaling to the testicles (e.g., idiopathic gonadotropin deficiency, pituitary conditions, Kallmann syndrome).

Important limitation: The FDA states that the safety and efficacy of Natesto in men with "age-related hypogonadism" (i.e., low T caused solely by aging, without a specific medical cause) have not been established. Natesto is also not approved for use in women or children under 18.

How Is Natesto Different From Other Testosterone Therapies?

Natesto is unique in several key ways:

Nasal delivery. Applied inside the nostrils, not on the skin. There is no risk of accidentally transferring testosterone to a partner or child through skin contact.

Rapid onset. Testosterone peaks in the bloodstream approximately 40 minutes after application — faster than topical gels, which can take hours.

Three-times-daily dosing. Applied morning, afternoon, and evening (at least 6–8 hours apart). This mimics the body's natural pulsatile testosterone release pattern.

May preserve fertility. Natesto's pulsatile pharmacokinetics appear to suppress the HPG axis less completely than injectable testosterone, which may help maintain FSH, LH, and sperm production. This makes it a consideration for hypogonadal men with fertility goals.

Natesto Dosage: How to Take It

The recommended dose of Natesto is 11 mg of testosterone (2 pump actuations: 1 per nostril) applied intranasally three times daily, for a total daily dose of 33 mg.

Timing: morning, afternoon, and evening — approximately 6–8 hours apart, preferably at the same times each day.

Each pump dispenser contains 60 actuations, which is approximately a 10-day supply at the full three-times-daily dose.

After applying: do not blow your nose or sniff for 1 hour after each dose.

Gently blow your nose and clear your nostrils before applying each dose.

The new dispenser must be primed before first use: invert and press pump 10 times over a sink, discarding any gel dispensed.

How Is Natesto Monitored?

Your prescriber will check your serum testosterone levels starting at 1 month after you begin Natesto. The target range is 300–1050 ng/dL. If your levels consistently exceed 1050 ng/dL, Natesto must be discontinued. If they remain below 300 ng/dL consistently, a different therapy may be recommended.

Is Natesto Available as a Generic?

No. As of 2026, there is no FDA-approved generic version of Natesto. It remains a brand-name-only product. The average retail price is approximately $1,047 per monthly supply, but significant discounts are available through the Natesto Savings Card, Cash Option Program, and GoodRx coupons. See our guide on saving money on Natesto for a full breakdown.

Who Should Not Take Natesto?

Men with known or suspected prostate cancer or breast cancer

Pregnant or breastfeeding women (testosterone is teratogenic)

Patients with chronic nasal conditions (polyps, chronic rhinosinusitis, mucosal inflammatory disorders)

Patients with recent nasal or sinus surgery (within the past 6 months) or a deviated anterior nasal septum

Once prescribed, finding Natesto at a pharmacy near you can take some effort. medfinder helps by calling pharmacies in your area to find which ones have it in stock today, with results delivered to your phone by text.