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What to ask before you start testosterone or peptides

A dozen questions that separate real treatment from a subscription, and the ones the sales-first clinics hate answering.

By Cal Brennan · Body6 min read

Write the questions down before the appointment. Take the list in with you. If you're sitting on a video call with a clinic that sells the drug it's about to diagnose you as needing, a piece of paper is the only thing standing between you and a monthly charge you'll still be paying in four years.

That's not a knock on hormone therapy. Testosterone replacement is legitimate medicine for men with genuine hypogonadism, and menopausal hormone therapy has helped an enormous number of women sleep through the night again. The problem isn't the drugs. It's the distance between "I'm tired at 43" and a lifelong prescription, and how many businesses have set up shop in that gap.

Ask these. Get the answers in writing where you can.

What exactly are we treating, and how will we both know it worked?

Make the clinician name the condition and the endpoint. Not "optimization." Not "getting you dialed in." A symptom you can describe to your wife, and a date by which it should have changed.

Morning erections. Falling asleep before 11. Not needing a nap on Saturday. Lifting the same weight for more reps. Whatever it is, say it out loud at the start, because six months in you'll have no reliable memory of how you felt in March.

If nobody can tell you what success looks like, nobody can tell you when to stop.

What's my baseline, and did we measure it more than once?

Total testosterone swings through the day and from week to week. Standard practice is an early-morning draw, and a repeat on a separate day before anyone concludes anything. Ask whether your diagnosis rests on one number or two.

Ask what else got measured alongside it. LH and FSH tell a different story than testosterone alone — they help distinguish a testicular problem from a pituitary one, and that changes the treatment. A prolactin level and a thyroid panel belong in the conversation. So does a complete blood count and a metabolic panel, because you'll want the before picture.

A clinic that diagnoses you off a single afternoon blood draw is not being careful with you.

What else could explain how I feel?

This is the question that saves people the most money.

Untreated sleep apnea tanks testosterone and makes a man feel a decade older. So does carrying an extra thirty pounds. So does drinking four nights a week, chronic under-sleeping, iron deficiency, unmanaged depression, and a thyroid that's quietly drifted.

Ask directly: before we medicate this, what should we rule out? A good clinician will already have a list. Some of them will send you for a sleep study before they'll write anything, and that's a sign you're in the right place.

Is this FDA-approved for what you're prescribing it for?

Testosterone is an approved drug with approved indications. Most of the peptides marketed for recovery, fat loss, tendon healing and "longevity" are not approved for those uses, and several have been restricted from compounding. Some are sold as research chemicals with a label saying they're not for human use, which tells you the seller isn't standing behind anything.

So ask three things. Is this approved, off-label, or neither? If it's compounded, which pharmacy, and is it a licensed 503A or 503B facility? And what's the actual evidence in humans, as opposed to in mice or in a podcast?

You're allowed to ask a doctor to show their work.

What does this do to my fertility?

Exogenous testosterone suppresses your body's own production, and that includes sperm production. For a lot of men on therapy it drops to near zero. Some recover after stopping. Recovery can take many months, and it isn't guaranteed.

If you're thirty-four and you and your wife aren't finished having children, this is the single most important question in the appointment. Ask about a semen analysis before you start. Ask about banking sperm. Ask whether there are approaches — clomiphene, hCG, others — that raise your own production instead of replacing it, and whether you're a candidate.

I've watched a man find this out eighteen months in, from the internet, because the clinic never raised it. Don't be him.

What happens if I stop?

For most men, testosterone replacement is not a course of treatment. It's a commitment. Your own production shuts down while you're on it, and if you quit, you spend a stretch of time feeling worse than you did before you started, possibly a long stretch.

Ask what the exit looks like. Ask whether there's a taper or a restart protocol. Ask what happens if you lose your job, or the clinic closes, or you move somewhere the prescription is harder to fill. The honest answer is often "you'd need to plan for that," and honest is what you want.

What's the monitoring plan, and who reads the results?

Testosterone can raise your red blood cell count, and that needs watching. Blood pressure, lipids and prostate health all belong in a follow-up schedule. Women starting hormone therapy have a different but equally real list, and it starts with a personal and family history conversation about breast cancer and clotting risk.

Ask for the schedule in months, not vibes. Ask which clinician reviews the labs and how you'll hear from them. "We'll flag anything abnormal" is not a monitoring plan if nobody can tell you who "we" is at nine o'clock on a Tuesday.

What's the total annual cost, including labs?

Medication, consults, bloodwork, supplies, membership fee. One number, for twelve months. Then ask what happens to that number if you need extra labs or a dose change.

Ask, too, how the person prescribing gets paid. Not to be adversarial — just to know. A clinician on salary at a practice that doesn't sell the drug has a different set of incentives than one whose income tracks refills. Both can be good. You should know which one you're talking to.

Will you send this to my regular doctor?

Fragmented care is how things get missed. Whoever manages your blood pressure and your cholesterol should have the hormone protocol in the chart. If the clinic resists sending records to your primary care physician, that's information.

Red flags, plainly

  • Diagnosis from one blood draw, or from a symptom questionnaire alone
  • Nobody asks about fertility, and you're of an age to care
  • "Optimal" numbers pushed to the top of the range or past it, for everybody
  • The consult is ten minutes and ends with a cart
  • Pressure to add peptides, ancillaries and supplements on the first visit
  • No named physician you could call

The ninety days before any of this

If you're tired and thickening around the middle and you haven't yet slept seven hours a night for three straight months, you don't have a hormone question. You have a life question wearing a hormone costume.

Sleep. Two full-body lifting sessions a week. Protein at breakfast. Alcohol down to something you'd say out loud. Walking with the kids after dinner. Ninety days of that is free, it's good for you regardless, and it will make the labs mean something.

And if you do all of it and you're still flat, you walk into that appointment with a much better case and a much clearer head.

Bring your wife to the consultation. Not for permission. Because she'll ask the question you were too polite to ask, and she'll remember the answer.

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Cal Brennan

Body

Strength coach. Trains fathers, tradesmen and desk workers, which means programmes that survive a bad week.