Oral Testosterone Pills: Jatenzo vs Kyzatrex vs Tlando

For decades, the only way to do testosterone replacement therapy (TRT) was a needle, a patch, or a smelly gel. Old-school testosterone pills had a dark history. They were toxic to the liver and got pulled from the market. Then, starting in 2019, the FDA approved a new generation of oral testosterone capsules that route around the liver problem. Three of them now sit on pharmacy shelves: Jatenzo, Kyzatrex, and Tlando.

They all use the same active drug. They all promise the same thing: normal testosterone, no injections. But they dose differently, they cost differently, and they carry a serious boxed warning about blood pressure that you need to understand before you swallow the first capsule.

This guide breaks down how the three compare on efficacy, dosing, and cardiovascular risk, using FDA labels and peer-reviewed trial data.

Quick Answer

• All three are the same molecule (testosterone undecanoate) in different oil-based softgels. They bypass the liver by absorbing through the lymph system, which is why the modern versions aren't liver-toxic like the old oral testosterone pills.
• Efficacy is close. In their pivotal trials, about 80% to 88% of men reached a normal testosterone range: Kyzatrex 88%, Jatenzo ~87%, Tlando 80%.
• Blood pressure is the big catch. All three carry an FDA boxed warning that they can raise blood pressure and increase heart attack and stroke risk. Kyzatrex showed the smallest average rise (~1.7 to 1.8 mmHg systolic); Jatenzo and Tlando showed larger increases (roughly 4 to 5 mmHg).
• Dosing differs. Jatenzo and Kyzatrex need blood tests and dose titration. Tlando is a fixed 225 mg twice daily with no titration. All three are taken twice a day, with food, and are Schedule III controlled substances.

What Are Jatenzo, Kyzatrex, and Tlando?

All three are brand names for oral testosterone undecanoate, a softgel capsule you swallow twice a day. Testosterone undecanoate is testosterone with a long fatty-acid chain attached. That chemistry matters. The long chain lets the drug ride into your body through the intestinal lymphatic system instead of going straight to the liver.

This is the whole trick. Plain oral testosterone (like methyltestosterone) passes through the liver first and can cause serious liver damage. The undecanoate ester sidesteps that path. The FDA labels for these new capsules do not carry the liver-toxicity boxed warning that sank the old pills.

Here's the lineup:

Jatenzo came first, in 2019. It was the first oral testosterone medicine approved in the United States in more than 60 years (Clarus Therapeutics, 2019). Tlando and Kyzatrex followed in 2022. A 2025 comparative review in the journal Medicines lays out the three side by side and notes there are no large head-to-head trials that pit one against another (Comparative Review, 2025, PMID 41562957). So every comparison here, including this one, stitches together separate trials. Keep that in mind.

All three are approved for the same thing: men with low testosterone caused by a medical condition (hypogonadism), either from a problem with the testicles (primary) or a problem with the brain signals that drive them (secondary). They are not approved for age-related low testosterone alone, the FDA is clear about that.

How Do the Three Oral Testosterone Pills Compare on Efficacy?

Efficacy for TRT is simple to measure. Does the drug get your testosterone back into the normal range? Each brand ran a single-arm trial (everyone got the drug, no placebo group) and counted how many men hit a normal level.

The catch: each trial used a slightly different "normal" range and a slightly different way of measuring. So the percentages aren't perfectly apples-to-apples. But they land in the same ballpark.

Kyzatrex. Its phase III trial enrolled 155 men, with 139 in the efficacy analysis. After dose titration, about 88% of men reached a 24-hour average testosterone within the normal range of 222–800 ng/dL (Kyzatrex Phase III Trial, Therapeutic Advances in Urology, 2024, PMID 38606384).

Jatenzo. Its pivotal study published in the Journal of Clinical Endocrinology & Metabolism showed about 87% of men reaching the eugonadal range after titration (Jatenzo Trial, JCEM, 2020, PMID 32382745).

Tlando. Its trial in 95 men used a fixed dose with no titration. About 80% of men reached a 24-hour average testosterone in the normal range of 300–1080 ng/dL (Comparative Review, 2025, PMID 41562957).

The takeaway: efficacy is a near-tie. All three reliably restore testosterone in roughly 4 out of 5 to 9 out of 10 men. The bigger differences are in how you dose them and what they do to your blood pressure.

How Is Each One Dosed?

This is where the brands split. Two of them require lab-guided titration. One is fixed.

Jatenzo starts at 237 mg twice a day. Your doctor checks a blood level 6 hours after your morning dose and adjusts between 158 mg and 396 mg twice daily (Comparative Review, 2025, PMID 41562957).

Kyzatrex starts at 200 mg twice daily, with the widest dosing flexibility of the three. It can be titrated anywhere from 100 mg once a day up to 400 mg twice a day. The blood test happens 3 to 5 hours after the morning dose (Comparative Review, 2025, PMID 41562957).

Tlando is the odd one out: a fixed 225 mg twice a day, taken as two 112.5 mg capsules, no titration and no follow-up blood draw to adjust the dose (Comparative Review, 2025, PMID 41562957). That's simpler. But it also means there's no way to dial the dose up if you fall short or down if you run high.

The food rule matters for all three. These drugs absorb through fat. You must take them with a meal that contains some fat, or your testosterone won't rise the way it should. Swallow them on an empty stomach and you may underdose yourself without knowing it.

Compared to a once-weekly testosterone injection or a daily gel, twice-daily pills are a different rhythm. If you're weighing pills against other formats, our guide on TRT delivery methods walks through injections, creams, pellets, and nasal gel. And if you're comparing injectable esters, see testosterone cypionate vs enanthate vs propionate.

What's the Deal With the Blood Pressure Boxed Warning?

This is the single most important thing to know about oral testosterone undecanoate. All three carry a boxed warning — the FDA's strongest type of safety alert — for raising blood pressure.

The warning says these drugs can increase blood pressure, which raises the risk of heart attack, stroke, and cardiovascular death. The risk is greater if you already have heart disease or risk factors for it.

• Jatenzo's boxed warning states the drug can cause blood pressure to rise, increasing the risk of heart attack, stroke, and cardiovascular death (Drugs.com / FDA, 2019).
• Kyzatrex's boxed warning: it "can increase blood pressure, which can increase the risk of having a heart attack or stroke" (Marius Pharmaceuticals, 2022).
• Tlando's boxed warning covers blood pressure increases that raise the risk of major adverse cardiovascular events, including non-fatal heart attack, non-fatal stroke, and cardiovascular death (Lipocine / Antares, 2022).

So the warning is identical in spirit across all three. But the size of the average blood pressure bump differs, and this is where Kyzatrex separates from the pack.

How Much Does Blood Pressure Actually Rise?

Each trial used 24-hour ambulatory blood pressure monitoring (a cuff that takes readings all day) to measure the change. Here's what they found.

Kyzatrex showed the smallest average increase: about 1.7 mmHg systolic at 4 months and 1.8 mmHg at 6 months (Kyzatrex Phase III Trial, 2024, PMID 38606384). The diastolic change wasn't statistically significant.

Tlando showed a mean systolic increase of about 3.8 mmHg (95% confidence interval 1.7–6.0) (Narrative Review, PMC9835814, 2023).

Jatenzo showed the largest signal in its data: a mean 24-hour systolic increase of about 4.9 mmHg compared to just 0.2 mmHg with topical testosterone (Narrative Review, 2023). In the comparative review, roughly 7% of Jatenzo users needed to start or escalate blood pressure medication (Comparative Review, 2025, PMID 41562957).

A few mmHg may sound small. Across a population, it isn't nothing. A sustained few-point rise in systolic pressure measurably raises cardiovascular risk over years. That's exactly why the FDA put these warnings in a black box.

What this means for you: If your blood pressure already runs high, oral testosterone undecanoate is a riskier choice than other TRT formats, and Kyzatrex would be the gentler option within the class. Your prescriber should check your blood pressure before you start and again about 3 weeks after starting or after any dose change. If it climbs and won't come down, the label says to stop the drug.

Are These Pills Safe for Your Heart? What the TRAVERSE Trial Says

The boxed warning is about blood pressure. But the bigger question men ask is: does TRT itself cause heart attacks?

The best evidence comes from TRAVERSE, a large randomized trial of more than 5,000 middle-aged and older men with low testosterone and existing heart risk. Published in the New England Journal of Medicine in 2023, it found that testosterone therapy was not inferior to placebo for major cardiac events — meaning it did not raise the overall rate of heart attack, stroke, or cardiovascular death (Lincoff et al., TRAVERSE, NEJM, 2023, PMID 37326322).

That's reassuring for TRT broadly. But two caveats matter here:

1. TRAVERSE used a testosterone gel, not oral capsules. The blood-pressure signal seen specifically with oral undecanoate is a separate concern the trial didn't test.
2. TRAVERSE did find more cases of atrial fibrillation, kidney injury, and pulmonary embolism in the testosterone group. So "not worse for heart attacks" isn't the same as "no cardiovascular risk at all."

We cover this trial in depth in our guide on TRT and heart health. The short version: TRT in the right patient is reasonably heart-safe, but oral capsules add a blood-pressure variable you have to watch closely.

What Are the Other Side Effects and Monitoring Needs?

Beyond blood pressure, oral testosterone undecanoate shares the side-effect profile of TRT in general. Key issues to track:

Hematocrit is the one that catches people off guard. All forms of TRT can raise your red blood cell count, and oral undecanoate is no exception. If it climbs too high, your blood gets thick and your clot risk goes up. The Tlando label, for example, calls for checking hematocrit about every 3 months in the first year, then every 6 months. Our guide on high hematocrit on TRT explains how to manage it.

Estrogen management comes up too. As testosterone rises, some converts to estradiol. Most men don't need to do anything about it, but some clinics reach for anastrozole. The evidence there is mixed — see our breakdown of the anastrozole debate before you let anyone add it to your protocol.

Fertility is a real consideration. Like all TRT, oral testosterone shuts down your body's own testosterone and sperm production. If you want to have kids, talk to your doctor about alternatives first. Enclomiphene and HCG can raise testosterone while preserving fertility — our enclomiphene vs TRT guide covers the trade-offs.

For the full panel of labs you should run on TRT and how often, see our TRT blood work and monitoring schedule.

What Does Oral Testosterone Cost?

Oral testosterone undecanoate is a brand-name drug. There's no generic. That makes it one of the more expensive ways to do TRT, often far pricier than a vial of generic testosterone cypionate, which can run as little as $20–$50 a month at a cash pharmacy.

Branded oral capsules typically cost several hundred dollars a month without insurance, and coverage varies a lot by plan. Manufacturer savings cards can cut the price for eligible commercially insured patients, but they don't help if you're on Medicare or paying cash.

Because prices shift and depend on dose, pharmacy, and insurance, we don't list a fixed number here. Run your own estimate with our TRT cost calculator, which compares telehealth, in-person clinic, and insurance routes. For the broader picture on what TRT costs across formats, see how much does TRT cost.

The honest framing: if cost is your top priority, injections are almost always cheaper. Oral capsules are for men who'll pay a premium to avoid needles and who don't have a blood pressure problem.

Who Should Consider Oral Testosterone — and Who Shouldn't?

These pills aren't for everyone. They solve one specific problem (needle avoidance) and create another (blood pressure risk). Here's a clear-eyed breakdown.

A reasonable fit if you:

• Have a real diagnosis of hypogonadism (low testosterone confirmed on more than one morning blood test, plus symptoms)
• Strongly prefer pills over injections, gels, or pellets
• Have normal or well-controlled blood pressure
• Will reliably take a capsule twice a day, with food
• Can afford a brand-name drug or have coverage for it

A poor fit if you:

• Have uncontrolled or borderline-high blood pressure
• Have established heart disease or multiple cardiovascular risk factors
• Want the cheapest option (injections win)
• Want to preserve fertility (look at enclomiphene or HCG instead)
• Tend to forget twice-daily medication

Diagnosis comes first, always. If you're not even sure you have low testosterone, start with our guide on do I need TRT and how it's diagnosed. The Endocrine Society's clinical practice guideline recommends diagnosing hypogonadism only in men with both consistent symptoms and unequivocally low morning testosterone confirmed on repeat testing (Bhasin et al., Endocrine Society Guideline, JCEM, 2018, PMID 29562364). Don't start any TRT, oral or otherwise, off a single borderline lab.

Once you've got a diagnosis, picking the right prescriber matters as much as picking the right drug. A good TRT provider will run proper labs, monitor your blood pressure and hematocrit, and not just hand you a prescription. Compare your options on our providers directory, weigh telehealth against in-person care with our how to choose a TRT provider guide, or run a head-to-head on our compare page.

Jatenzo vs Kyzatrex vs Tlando: The Bottom Line

Here's the whole comparison in one place.

No single brand wins on every measure. Kyzatrex has the best blood-pressure profile and the most flexible dosing. Tlando is the simplest (no titration, no follow-up dose adjustment) but showed the lowest efficacy and a middling BP rise. Jatenzo has the longest track record but the largest blood-pressure signal of the three.

For most men picking within this class, the blood-pressure data points toward Kyzatrex. But the real comparison isn't between these three pills. It's between oral testosterone and the cheaper, well-studied injectable and topical options. Oral undecanoate makes sense when needle avoidance is worth a premium price and you don't have a blood-pressure problem. For everyone else, talk to a qualified provider about whether an injection or gel fits you better.

Frequently Asked Questions

Is oral testosterone safe for your liver? The modern capsules (Jatenzo, Kyzatrex, Tlando) are designed to be. They use testosterone undecanoate, which absorbs through the lymphatic system and largely bypasses the liver. That's the key difference from old oral testosterone pills like methyltestosterone, which were liver-toxic and pulled off shelves. The new versions don't carry a liver-damage boxed warning. They do carry a blood-pressure boxed warning, which is the real safety issue to watch.

Which oral testosterone has the lowest blood pressure risk? Based on the trial data, Kyzatrex showed the smallest average systolic blood pressure increase (about 1.7 to 1.8 mmHg), compared to roughly 3.8 mmHg for Tlando and about 4.9 mmHg for Jatenzo. All three still carry an identical FDA boxed warning, so none is "safe" for someone with uncontrolled hypertension. But within the class, Kyzatrex has the most favorable blood-pressure profile.

Do you have to take oral testosterone with food? Yes, for all three. These drugs absorb through dietary fat, so taking a capsule on an empty stomach can leave your testosterone too low even at the right dose. Take each dose with a meal that contains some fat, twice a day, morning and evening.

Are oral testosterone pills as effective as injections? For raising testosterone into the normal range, roughly 80% to 88% of men in the trials hit target — similar in spirit to other TRT formats. No large head-to-head trial directly compares oral capsules to injections. The main trade-offs are convenience (pills, no needles), cost (pills are pricier, with no generic), and the blood-pressure risk that's specific to the oral form.

How often do you need blood tests on oral testosterone? Expect a baseline panel before starting, then follow-up labs to check your testosterone level (and to titrate the dose for Jatenzo and Kyzatrex). Beyond testosterone, you'll monitor hematocrit (around 3 months, then every 6 to 12 months), blood pressure (about 3 weeks after starting or any dose change, then periodically), and PSA. See our full TRT blood work guide for the schedule.

Related Guides

• TRT Delivery Methods: Injections vs Cream vs Pellets vs Nasal
• Testosterone Cypionate vs Enanthate vs Propionate: Which Ester Is Best?
• TRT and Heart Health: What the TRAVERSE Trial Says
• High Hematocrit on TRT: Why It Happens and How to Lower It
• Enclomiphene vs TRT: A Fertility-Friendly Alternative
• How Much Does TRT Cost? Telehealth vs Clinic vs Insurance
• Compare providers on the providers directory and compare pages, or estimate your spend with the TRT cost calculator.

Medical disclaimer: This article is for general education only and is not medical advice. Testosterone replacement therapy is a prescription treatment with real risks, including the blood-pressure and cardiovascular warnings described above. Do not start, stop, or change any medication based on this article. Talk to a licensed physician about your own diagnosis, lab results, and treatment options. Oral testosterone undecanoate is a Schedule III controlled substance available only by prescription.