Drug & supplement interaction

Methylsynephrine + Romosozumab-Aqqg

Romosozumab-Aqqg brand name: Evenity.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Methylsynephrine and Romosozumab-Aqqg 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. Additionally, although there is no interaction, the label for Romosozumab-Aqqg states a food rule worth keeping to.

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Interaction report

Methylsynephrine and Romosozumab-Aqqg

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 Romosozumab-Aqqg and Methylsynephrine 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.

Methylsynephrine safety at a glance

Methylsynephrine overall Avoid It is a stimulant drug not approved as a supplement and has been tied to serious cardiovascular events.
Pregnancy Avoid Stimulant with unknown safety; should not be used during pregnancy.
Breastfeeding Avoid No safety data; avoid while breastfeeding.

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

Still wondering about combining Romosozumab-Aqqg and Methylsynephrine? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
Keep it in perspective

Methylsynephrine Does Interact With Other Medications

Methylsynephrine has 191 moderate known drug interactions in our database — Romosozumab-Aqqg isn’t one of them. If you take anything else, check it against the full list below.

Moderate 191 No known interaction 2,639 (incl. Romosozumab-Aqqg)
Taking anything else?

Check Another of Your Medications Against Methylsynephrine

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

What to actually watch for

What Methylsynephrine Itself Has Been Linked To

This is not an interaction — nothing below involves Romosozumab-Aqqg. It is the side-effect record for Methylsynephrine on its own, from the licensed Natural Medicines monograph. If something new turns up after you add Methylsynephrine, this list is the first place to look. 3 entries are worth acting on rather than waiting out — marked below.

  • An irregular heartbeat Worth acting on Additional detail

    “There is currently a limited amount of information available about the adverse effects of methylsynephrine. Orally, it has been reported to cause increased blood pressure, palpitations, and arrhythmia.”

    Methylsynephrine · Natural Medicines adverse-effect record, reported in arrhythmia.

    2 sources cited
    1. 94386. 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
    2. 99910. Cohen PA, Avula B, Venhuis B, Travis JC, Wang YH, Khan IA. Pharmaceutical doses of the banned stimulant oxilofrine found in dietary supplements sold in the USA. Drug Test Anal. 2017;9(1):135-142. PubMed
  • Chest pain Worth acting on Additional detail

    “Orally, methylsynephrine has been reported to cause increased blood pressure, palpitations, and arrhythmias.

    In the Netherlands, the supplement dexaprine was removed from the market because of reported cases of tachycardia, palpitations, chest pain, and a single report of cardiac arrest. As little as half a tablet was associated with these adverse effects, which occurred within one hour of ingestion.”

    Methylsynephrine · Natural Medicines adverse-effect record, reported in arrhythmia.

    3 sources cited
    1. 94386. 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
    2. 99910. Cohen PA, Avula B, Venhuis B, Travis JC, Wang YH, Khan IA. Pharmaceutical doses of the banned stimulant oxilofrine found in dietary supplements sold in the USA. Drug Test Anal. 2017;9(1):135-142. PubMed
    3. 99913. Venhuis B, Keizers P, van Riel A, de Kaste D. A cocktail of synthetic stimulants found in a dietary supplement associated with serious adverse events. Drug Test Anal. 2014;6(6):578-81. PubMed
  • Raised blood pressure Worth acting on Additional detail

    Recorded for Methylsynephrine in the same Natural Medicines adverse-effect record shown under An irregular heartbeat above.

  • A fast or pounding heartbeat Additional detail

    Recorded for Methylsynephrine in the same Natural Medicines adverse-effect record shown under An irregular heartbeat above.

  • Vomiting / Nausea Additional detail

    “In the Netherlands, the supplement dexaprine was removed from the market following reported cases of nausea and vomiting. As little as half a tablet was associated with these adverse effects, which occurred within one hour of ingestion. Dexaprine was found to contain methylsynephrine, synephrine, deterenol, yohimbine, caffeine, theophylline, and possibly beta-methyl-beta-phenylethylamines.”

    Methylsynephrine · Natural Medicines adverse-effect record, reported in nausea and vomiting.

    1 source cited
    1. 99913. Venhuis B, Keizers P, van Riel A, de Kaste D. A cocktail of synthetic stimulants found in a dietary supplement associated with serious adverse events. Drug Test Anal. 2014;6(6):578-81. PubMed

Everything above comes from the Natural Medicines adverse-effect record for Methylsynephrine — expand a row for the licensed statement it rests on. We read the ADVERSE REACTIONS section of Romosozumab-Aqqg’s FDA label too, and the two lists don’t meaningfully overlap — which is why no Romosozumab-Aqqg column appears here.

How to take them

Some Romosozumab-Aqqg Products Have a Food Rule — Methylsynephrine Should Not Break It

At least one FDA label for a product containing Romosozumab-Aqqg says to take it on an empty stomach. Most supplements — Methylsynephrine included — are taken with a meal, so the easy mistake is swallowing both together at breakfast. Where that rule applies, keep Romosozumab-Aqqg on its own and move Methylsynephrine to a meal later in the day.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Romosozumab-Aqqg products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

Allow EVENITY to sit at room temperature for at least 30 minutes before injecting.

From the Dosage and Administration section of the FDA label we read for Romosozumab-Aqqg — where that label names a specific product, the instruction is that product's. See the Romosozumab-Aqqg drug page ›

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

One more smart check

Taking Methylsynephrine as Part of a Dietary Supplement Product? Check It for Interactions

We hold 55 real supplement products containing Methylsynephrine, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Methylsynephrine. Even though Methylsynephrine itself has no known interaction with Romosozumab-Aqqg, 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 Methylsynephrine and Romosozumab-Aqqg 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 Methylsynephrine
Top half

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

29 days ago today
Medication Romosozumab-Aqqg
Top half

#1,012 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 Methylsynephrine reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Methylsynephrine and Romosozumab-Aqqg records this page draws on were last updated July 10, 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 .
Supplement

About Methylsynephrine

What is Methylsynephrine?

  • Weight loss and fat burning
  • Boosting energy
  • Athletic and workout performance
  • Appetite control

Methylsynephrine (also called oxilofrine) is a synthetic stimulant sometimes added to weight-loss and pre-workout products, but it is not a legal or approved dietary ingredient in the United States. It has been linked to serious heart and blood pressure problems, and there is no good evidence it is safe or effective for these uses, so it is best avoided.

Synthetic compound (also reported in some Citrus species) · Capsules, tablets, powders (mostly in weight-loss and pre-workout supplements)

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

Methylsynephrine: dosing

There is no established safe or approved dose of methylsynephrine for use as a dietary supplement, and we will not suggest one. It is not a legal supplement ingredient in the United States.Supplement labels may list it under different names (such as oxilofrine or methylsynephrine) and amounts can be inconsistent or unreliable. The safest choice is to avoid products that contain it.

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

Read the full Methylsynephrine monograph & all interactions
Medication

About Romosozumab-aqqg Injection

What Is Romosozumab-aqqg Injection Used For?

Brand name: Evenity

Evenity (romosozumab-aqqg) is approved to treat osteoporosis in postmenopausal women who are at high risk for breaking a bone. That includes women who have already had an osteoporotic fracture, have multiple risk factors for fractures, or have not responded to — or cannot tolerate — other osteoporosis treatments.

Treatment with Evenity is limited to 12 monthly doses. If continued bone protection is needed after that course, a prescriber will typically recommend switching to a different type of osteoporosis medication called an anti-resorptive agent.

See full Romosozumab-aqqg Injection drug information
Keep checking

Other Drugs & Methylsynephrine

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

0Major
191Moderate
0Minor
2,638No known interaction
191 Moderate 2,638 No interaction
Moderate

191 interactions

Showing 60 of 191 moderate interactions — see all 191 on the Methylsynephrine page.

No interaction 2,638 drugs checked — show the list

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

Showing the 60 most looked-up of 2,638 medications checked with no known interaction — see the full Methylsynephrine list.

See the full Methylsynephrine interactions page
See every supplement checked against Romosozumab-Aqqg, ranked by severity
Evidence & sources

Methylsynephrine References

The 3 references that drive our Methylsynephrine 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.

  1. 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
  2. Cohen PA, Avula B, Venhuis B, Travis JC, Wang YH, Khan IA. Pharmaceutical doses of the banned stimulant oxilofrine found in dietary supplements sold in the USA. Drug Test Anal. 2017;9(1):135-142. PubMed
  3. Venhuis B, Keizers P, van Riel A, de Kaste D. A cocktail of synthetic stimulants found in a dietary supplement associated with serious adverse events. Drug Test Anal. 2014;6(6):578-81. PubMed

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 Methylsynephrine and Romosozumab-Aqqg Together: Common Questions

Is it safe to take Methylsynephrine with Romosozumab-Aqqg?
We do not list a known interaction between Methylsynephrine and Romosozumab-Aqqg. 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.
Should I take Methylsynephrine and Romosozumab-Aqqg at the same time of day?
At least one FDA label for a product containing Romosozumab-Aqqg says to take it on an empty stomach, and supplements are usually taken with a meal — so taking them together at breakfast is the easy mistake. Where that applies, keep Romosozumab-Aqqg on its own and move Methylsynephrine to a meal later in the day. Food instructions belong to the product rather than the ingredient, so check the directions on your own box. This is about absorption, not an interaction.
Does Methylsynephrine interact with any other medications?
Yes. Methylsynephrine has 191 documented drug interactions in our database — Romosozumab-Aqqg 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

Methylsynephrine monograph Uses, safety profile, and every drug interaction in one place Romosozumab-aqqg Injection drug information The full plain-English guide to this medication Romosozumab-Aqqg supplement interactions Every supplement checked against Romosozumab-Aqqg, 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 3 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

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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.