Drug & supplement interaction

N-methyltyramine + Recombinant Parathyroid Hormone

Recombinant Parathyroid Hormone brand name: Natpara.

No Known Interaction

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated June 2026 · Pair last verified Sep 13, 2026

The bottom line No known interaction

We found no known interaction between N-methyltyramine and Recombinant Parathyroid Hormone in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first.

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Interaction report

N-methyltyramine and Recombinant Parathyroid Hormone

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Recombinant Parathyroid Hormone and N-methyltyramine in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

N-methyltyramine safety at a glance

N-methyltyramine overall Use caution Human safety data are limited, and as a stimulant-like amine it may raise heart rate or blood pressure.

Pregnancy Avoid There is no reliable safety information, so it is best avoided during pregnancy.

Breastfeeding Avoid There is no reliable safety information, so it is best avoided while breastfeeding.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Recombinant Parathyroid Hormone and N-methyltyramine? Ask Dr. Brian Staiger, PharmD, BCPS directly ›

Keep it in perspective

N-methyltyramine Does Interact With Other Medications

N-methyltyramine has 344 minor known drug interactions in our database — Recombinant Parathyroid Hormone isn’t one of them. If you take anything else, check it against the full list below.

Minor 344 No known interaction 2,486 (incl. Recombinant Parathyroid Hormone)

Taking anything else?

Check Another of Your Medications Against N-methyltyramine

Covers the 2,830 medications we’ve checked against N-methyltyramine. Pick one to open its full report.

One more smart check

Taking N-methyltyramine as Part of a Dietary Supplement Product? Check It for Interactions

We hold 213 real supplement products containing N-methyltyramine, each one broken down to its full ingredient list — and combination products often carry several ingredients besides N-methyltyramine. Even though N-methyltyramine itself has no known interaction with Recombinant Parathyroid Hormone, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where N-methyltyramine and Recombinant Parathyroid Hormone Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement N-methyltyramine

Top half

#494 of 1,452 supplements looked up here in the last 7 days

29 days ago today

Medication Recombinant Parathyroid Hormone

Top 25%

#335 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?

Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every N-methyltyramine reference on this page ↓
Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The N-methyltyramine and Recombinant Parathyroid Hormone records this page draws on were last updated June 22, 2026.
What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.

Data structure & sourcing designed and verified by Dr. Brian Staiger, PharmD, BCPS.

Supplement

About N-methyltyramine

What is N-methyltyramine?

Weight loss and fat burning
Energy and pre-workout supplements
Sports performance
Appetite control

N-methyltyramine is a natural compound related to tyramine that is found in bitter orange, barley, and other plants, and it is often added to weight-loss and pre-workout supplements. Solid human research on its safety and effectiveness is very limited, and because it may stimulate the body like other amines, people with heart problems or high blood pressure should be especially careful. Talk to a pharmacist or doctor before using any product that contains it.

Found naturally in citrus fruits (especially bitter orange), barley, and certain plants; also produced synthetically · Capsules, tablets, and powders (usually as part of pre-workout, fat-burner, or weight-loss blends)

An interaction check asks whether these two react with each other — it does not ask whether N-methyltyramine is a good idea for someone in your situation. Here is what our N-methyltyramine record says about it on its own.

N-methyltyramine: dosing

There is no established or standardized dose for N-methyltyramine. It has not been studied enough in humans to know a safe or effective amount, and it is usually found as one ingredient in a blended product rather than sold alone.If you choose to use a product that contains it, follow the directions on the label and do not exceed them. Avoid stacking it with other stimulants like caffeine or synephrine unless a healthcare professional says it is okay.

From our N-methyltyramine monograph — the full record covers uses, side effects and every documented interaction.

Read the full N-methyltyramine monograph & all interactions

Medication

About Parathyroid Hormone Injection

What Is Parathyroid Hormone Injection Used For?

Brand name: Natpara

Parathyroid hormone injection is used along with calcium and vitamin D to treat low levels of calcium in the blood in people with certain types of hypoparathyroidism (condition in which the body does not produce enough parathyroid hormone [PTH; a natural substance needed to control the amount of calcium in the blood].) Parathyroid hormone injection should not be used to treat low levels of calcium in the blood in people whose condition can be controlled by calcium and vitamin D alone. Parathyroid hormone injection is in a class of medications called hormones. It works by causing the body to absorb more calcium into the blood.

See full Parathyroid Hormone Injection drug information

Keep checking

Other Drugs & N-methyltyramine

Browse every other medication we’ve checked against N-methyltyramine — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major

0Moderate

344Minor

2,485No known interaction

344 Minor 2,485 No interaction

Minor

344 interactions

Showing 60 of 344 minor interactions — see all 344 on the N-methyltyramine page.

No interaction 2,485 drugs checked — show the list

We also checked N-methyltyramine against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,485 medications checked with no known interaction — see the full N-methyltyramine list.

See the full N-methyltyramine interactions page

See every supplement checked against Recombinant Parathyroid Hormone, ranked by severity

Evidence & sources

N-methyltyramine References

The 2 references that drive our N-methyltyramine monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

Pawar RS, Grundel E. Overview of regulation of dietary supplements in the USA and issues of adulteration with phenethylamines (PEAs). Drug Test Anal 2017;9:500-517. PubMed
Stohs SJ, Hartman MJ. A review of the receptor binding and pharmacological effects of N-methyltyramine. Phytother Res. 2015;29(1):14-6.

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking N-methyltyramine and Recombinant Parathyroid Hormone Together: Common Questions

Is it safe to take N-methyltyramine with Recombinant Parathyroid Hormone?

We do not list a known interaction between N-methyltyramine and Recombinant Parathyroid Hormone. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.

Does N-methyltyramine interact with any other medications?

Yes. N-methyltyramine has 344 documented drug interactions in our database — Recombinant Parathyroid Hormone is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Where next

Keep Exploring

N-methyltyramine monograph Uses, safety profile, and every drug interaction in one place Parathyroid Hormone Injection drug information The full plain-English guide to this medication Recombinant Parathyroid Hormone supplement interactions Every supplement checked against Recombinant Parathyroid Hormone, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 2 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Recombinant Parathyroid Hormone and N-methyltyramine?

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.