Drug & supplement interaction

Adenosine + Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine

Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine brand name: Theracaps.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Adenosine and Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine 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

Adenosine and Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine

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 Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine and Adenosine 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.

Adenosine safety at a glance

Adenosine overall Use caution Oral supplement evidence is limited; the prescription injectable form is powerful and must only be given by medical professionals.
Pregnancy Avoid There is not enough safety information for supplement use, so it is best avoided.
Breastfeeding Avoid Safety has not been established, so avoid supplement use while breastfeeding.

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

Still wondering about combining Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine and Adenosine? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine

Interactions in our licensed database are recorded against drug classes, not just single drug names. Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine is filed under 17 classifications — including phenylpropanolamine, cytochrome p450 2e1 (cyp2e1) substrates, glucuronidated drugs. Adenosine has documented interactions with 3 drug classes — the most serious being dipyridamole (persantine) (major), carbamazepine (tegretol) (moderate) and methylxanthines (minor) — and none of Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Adenosine Does Interact With Other Medications

Adenosine has 2 major, 1 moderate, 44 minor known drug interactions in our database — Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine isn’t one of them. If you take anything else, check it against the full list below.

Major 2 Moderate 1 Minor 44 No known interaction 2,783 (incl. Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine)
Taking anything else?

Check Another of Your Medications Against Adenosine

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

What to actually watch for

What Adenosine Itself Has Been Linked To

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

  • A heart attack / An irregular heartbeat / Chest pain Worth acting on Additional detail

    “Intravenously, adenosine causes chest pain, palpitations, hypotension, and supraventricular tachycardia (15,9148). Intravenous adenosine has also been associated with arrhythmias, fatal or nonfatal cardiac arrest, ventricular tachycardia, and myocardial infarction (15). Intravenously, adenosine triphosphate (ATP) causes chest pain, particularly at doses greater than 50 mcg/kg per minute.”

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

    3 sources cited
    1. 15. McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
    2. 9148. Agteresch HJ, Dagnelie PC, van den Berg JW, Wilson JH. Adenosine triphosphate: established and potential clinical applications. Drugs 1999;58:211-32.. PubMed
    3. 9154. Haskell CM, Mendoza E, Pisters KM, et al. Phase II study of intravenous adenosine 5'-triphosphate in patients with previously untreated stage IIIB and stage IV non-small cell lung cancer. Invest New Drugs 1998;16:81-5.. PubMed
  • Seizures Worth acting on Additional detail

    “Rapid intravenous injection of adenosine can cause headache, lightheadedness, insomnia, and anxiety. New onset seizures, including tonic-clonic seizures, have also occurred (15). Intrathecally, adenosine has been reported to cause headache.”

    Adenosine · Natural Medicines adverse-effect record, reported in anxiety.

    6 sources cited
    1. 9148. Agteresch HJ, Dagnelie PC, van den Berg JW, Wilson JH. Adenosine triphosphate: established and potential clinical applications. Drugs 1999;58:211-32.. PubMed
    2. 9151. Agteresch HJ, Dagnelie PC, van der Gaast A, et al. Randomized clinical trial of adenosine 5'-triphosphate in patients with advanced non-small-cell lung cancer. J Natl Cancer Inst 2000;92:321-8.. PubMed
    3. 9152. Haskell CM, Wong M, Williams A, Lee LY. Phase I trial of extracellular adenosine 5'-triphosphate in patients with advanced cancer. Med Pediatr Oncol 1996;27:165-73.. DOI
    4. 9154. Haskell CM, Mendoza E, Pisters KM, et al. Phase II study of intravenous adenosine 5'-triphosphate in patients with previously untreated stage IIIB and stage IV non-small cell lung cancer. Invest New Drugs 1998;16:81-5.. PubMed
    5. 9158. Agteresch HJ, Dagnelie PC, Rietveld T, et al. Pharmacokinetics of intravenous ATP in cancer patients. Eur J Clin Pharmacol 2000;56:49-55.. PubMed
    6. 15. McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
  • Shortness of breath / An allergic reaction Worth acting on Additional detail

    Recorded for Adenosine in the same Natural Medicines adverse-effect record shown under A heart attack / An irregular heartbeat / Chest pain above.

  • Flushing Additional detail

    “Intravenously, adenosine causes flushing in up to 44% of patients in clinical research (15). Topically, folliculitis and pruritus can occur after application of adenosine to the scalp.”

    Adenosine · Natural Medicines adverse-effect record, reported in pruritus.

    2 sources cited
    1. 15. McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
    2. 93689. Faghihi G, Iraji F, Rajaee Harandi M, et al. Comparison of the efficacy of topical minoxidil 5% and adenosine 0.75% solutions on male androgenic alopecia and measuring patient satisfaction rate. Acta Dermatovenerol Croat 2013;21(3):155-9.
  • A fast or pounding heartbeat / Low blood pressure Additional detail

    Recorded for Adenosine in the same Natural Medicines adverse-effect record shown under A heart attack / An irregular heartbeat / Chest pain above.

  • Numbness or tingling Additional detail

    Recorded for Adenosine in the same Natural Medicines adverse-effect record shown under A heart attack / An irregular heartbeat / Chest pain above.

Showing the 10 most notable of 16 recorded effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

Everything above comes from the Natural Medicines adverse-effect record for Adenosine — expand a row for the licensed statement it rests on. We haven’t matched Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine to its FDA label in our system yet, so we can’t compare its own side-effect list here — the leaflet that comes with your prescription is the authoritative list for Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine.

Everything else you take

See Every Supplement That Interacts With Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine

This page covers Adenosine only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine page lists 282 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Asarabacca (major), Beer (major), Ephedra (major) and Grapefruit (major).

By severity: 14 major · 223 moderate · 45 minor.

From our pharmacist’s overview on the Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine page

“Of everything on this page, ephedra worries me most for anyone using Theracaps (acetaminophen, dextromethorphan, phenylpropanolamine, and pyrilamine), because the decongestant in this cold formula is itself a stimulant. Adding ephedra or any of the 44 stimulant entries can push blood pressure and heart rate to unsafe levels.”

Reviewed by 2 · Jul 18, 2026

Open the Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine interaction page

One more smart check

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

We hold 66 real supplement products containing Adenosine, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Adenosine. Even though Adenosine itself has no known interaction with Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine, 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 Adenosine and Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine 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 Adenosine
Top half

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

29 days ago today
Medication Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine
Top half

#1,315 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 Adenosine reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Adenosine and Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine 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 Adenosine

What is Adenosine?

Adenosine
  • Energy and cellular function support
  • Athletic performance and muscle energy
  • Circulation support
  • General wellness

Adenosine is a natural building block your body uses for energy and cell signaling, and a prescription injectable version is used by doctors to treat certain fast heart rhythms. As an over-the-counter supplement (often sold as AMP or ATP), there is little strong evidence that swallowing it boosts energy or performance, and quality can vary. Talk to your pharmacist before using adenosine supplements, especially if you have a heart condition.

Naturally occurring purine nucleoside found in all body cells; supplement forms are made synthetically · Tablets, capsules, sublingual tablets, powders (often as AMP or ATP); prescription injectable form (separate from supplements)

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

Adenosine: dosing

There is no established standard dose for adenosine supplements. Products vary widely in form (AMP, ATP, or adenosine) and in the amounts they contain.If you choose to use a supplement, follow the directions on the product label and do not take more than recommended. Because supplements are not tightly regulated, quality and actual content can differ between brands; choosing products that have been independently tested can help.The prescription injectable dose is determined and given by a doctor and does not apply to supplement use.

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

Read the full Adenosine monograph & all interactions
Keep checking

Other Drugs & Adenosine

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

2Major
1Moderate
44Minor
2,782No known interaction
2 Major 1 Moderate 44 Minor 2,782 No interaction
Major

2 interactions

Moderate

1 interaction

Minor

44 interactions

No interaction 2,782 drugs checked — show the list

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

Showing the 60 most looked-up of 2,782 medications checked with no known interaction — see the full Adenosine list.

See the full Adenosine interactions page
See every supplement checked against Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine, ranked by severity
Evidence & sources

Adenosine References

The 10 references that drive our Adenosine 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. McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
  2. Agteresch HJ, Dagnelie PC, van den Berg JW, Wilson JH. Adenosine triphosphate: established and potential clinical applications. Drugs 1999;58:211-32.. PubMed
  3. Agteresch HJ, Dagnelie PC, van der Gaast A, et al. Randomized clinical trial of adenosine 5'-triphosphate in patients with advanced non-small-cell lung cancer. J Natl Cancer Inst 2000;92:321-8.. PubMed
  4. Haskell CM, Wong M, Williams A, Lee LY. Phase I trial of extracellular adenosine 5'-triphosphate in patients with advanced cancer. Med Pediatr Oncol 1996;27:165-73.. DOI
  5. Haskell CM, Mendoza E, Pisters KM, et al. Phase II study of intravenous adenosine 5'-triphosphate in patients with previously untreated stage IIIB and stage IV non-small cell lung cancer. Invest New Drugs 1998;16:81-5.. PubMed
  6. Eisenach JC, Curry R, Hood DD. Dose response of intrathecal adenosine in experimental pain and allodynia. Anesthesiology 2002;97:938-42.. PubMed
  7. Agteresch HJ, Dagnelie PC, Rietveld T, et al. Pharmacokinetics of intravenous ATP in cancer patients. Eur J Clin Pharmacol 2000;56:49-55.. PubMed
  8. Underwood DA. Which medications should be held before a pharmacologic or exercise stress test? Cleve Clin J Med 2002;69:449-50. PubMed
  9. Litmann L, Anderson JD, Monroe MH. Adenosine and Aggrenox: A hazardous combination. Ann Intern Med 2002;137:E-76. PubMed
  10. Faghihi G, Iraji F, Rajaee Harandi M, et al. Comparison of the efficacy of topical minoxidil 5% and adenosine 0.75% solutions on male androgenic alopecia and measuring patient satisfaction rate. Acta Dermatovenerol Croat 2013;21(3):155-9.

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 Adenosine and Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine Together: Common Questions

Is it safe to take Adenosine with Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine?
We do not list a known interaction between Adenosine and Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine. 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.
How was the Adenosine and Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine combination checked?
Interactions in our licensed database are recorded against drug classes. Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine is filed under 17 classifications, and Adenosine has documented interactions with 3 drug classes — none of Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.
Does Adenosine interact with any other medications?
Yes. Adenosine has 47 documented drug interactions in our database — Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.
Does Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine interact with any supplements?
Yes. Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine has documented interactions with 282 supplements in our database — Adenosine is not one of them. The Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine interaction page linked on this page lists every one, ranked by severity.

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

Where next

Keep Exploring

Adenosine monograph Uses, safety profile, and every drug interaction in one place Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine supplement interactions Every supplement checked against Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine, 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 10 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine and Adenosine?

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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.