Drug & supplement interaction

Propionyl-l-carnitine + Pramlintide

Pramlintide brand name: Symlin.

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 Propionyl-l-carnitine and Pramlintide 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 two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

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Interaction report

Propionyl-l-carnitine and Pramlintide

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 Pramlintide and Propionyl-l-carnitine 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.

Propionyl-l-carnitine safety at a glance

Propionyl-l-carnit... overall Use caution Generally well tolerated for short-term use, but talk to a healthcare provider first.
Pregnancy Avoid Safety has not been established, so it is best avoided during pregnancy.
Breastfeeding Avoid Not enough safety data is available, so avoid use while breastfeeding.

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

Still wondering about combining Pramlintide and Propionyl-l-carnitine? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Pramlintide

Interactions in our licensed database are recorded against drug classes, not just single drug names. Pramlintide is filed under a single classification — antidiabetes drugs. Propionyl-l-carnitine has documented interactions with 3 drug classes — the most serious being acenocoumarol (sintrom) (moderate), thyroid hormone (moderate) and warfarin (coumadin) (moderate) — and none of Pramlintide’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

Propionyl-l-carnitine Does Interact With Other Medications

Propionyl-l-carnitine has 19 moderate known drug interactions in our database — Pramlintide isn’t one of them. If you take anything else, check it against the full list below.

Moderate 19 No known interaction 2,811 (incl. Pramlintide)
Taking anything else?

Check Another of Your Medications Against Propionyl-l-carnitine

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

What to actually watch for

No Interaction Found — But Data Suggests Propionyl-l-carnitine and Pramlintide May Share Several of the Same Side Effects

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do.

  • Nausea / Vomiting reported in 8.8% of FDA reports for Pramlintide Additional detail

    Propionyl-l-carnitine

    “Orally, nausea, vomiting, diarrhea, and gastric pain have been reported with propionyl-L-carnitine use.”

    Propionyl-l-carnitine · Natural Medicines adverse-effect record, reported in diarrhea.

    6 sources cited
    1. 1579. Cherchi A, Lai C, Onnis E, et al. Propionyl carnitine in stable effort angina. Cardiovasc Drugs Ther 1990;4:481-6. PubMed
    2. 1580. Bartels GL, Remme WJ, den Hartog FR, et al. Additional anti-ischemic effects of long-term L-propionylcarnitine in anginal patients treated with conventional antianginal therapy. Cardiovasc Drugs Ther 1995;9:749-53.
    3. 1582. Caponnetto S, Canale C, Masperone MA, et al. Efficacy of L-propionylcarnitine treatment in patients with left ventricular dysfunction. Eur Heart J 1994;15:1267-73. PubMed
    4. 12682. Gentile V, Vicini P, Prigiotti G, et al. Preliminary observations on the use of propionyl-L-carnitine in combination with sildenafil in patients with erectile dysfunction and diabetes. Curr Med Res Opin 2004;20:1377-84. PubMed
    5. 94439. Brass EP, Koster D, Hiatt WR, Amato A. A systematic review and meta-analysis of propionyl-L-carnitine effects on exercise performance in patients with claudication. Vasc Med 2013;18:3-12.
    6. 94443. Hiatt WR, Creager MA, Amato A, Brass EP. Effect of propionyl-L-carnitine on a background of monitored exercise in patients with claudication secondary to peripheral artery disease. J Cardiopulm Rehabil Prev 2011;31:125-32. PubMed

    Pramlintide

    Listed in the ADVERSE REACTIONS section of the FDA label for Pramlintide, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›

Reported for Propionyl-l-carnitine but not commonly for Pramlintide: back pain and diarrhea.

Effects for Pramlintide come from the ADVERSE REACTIONS section of its FDA label; effects for Propionyl-l-carnitine come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 102 voluntary FDA FAERS reports for Pramlintide that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Everything else you take

See Every Supplement That Interacts With Pramlintide

This page covers Propionyl-l-carnitine only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Pramlintide page lists 239 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Siberian Cocklebur (major), Acai (moderate), African Wild Potato (moderate), Agaricus Mushroom (moderate) and Agmatine (moderate).

By severity: 1 major · 208 moderate · 30 minor.

From our pharmacist’s overview on the Pramlintide page

“The single entry rated major on the pramlintide (Symlin) list is Siberian cocklebur, which has caused severe hypoglycemia in humans, not just in lab studies. That matters more than usual here because pramlintide is injected at mealtimes alongside insulin, and a dangerous low is already the main hazard of that pairing.”

Reviewed by 2 · Jul 18, 2026

Open the Pramlintide interaction page

One more smart check

Taking Propionyl-l-carnitine as Part of a Dietary Supplement Product? Check It for Interactions

We hold 57 real supplement products containing Propionyl-l-carnitine, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Propionyl-l-carnitine. Even though Propionyl-l-carnitine itself has no known interaction with Pramlintide, 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 Propionyl-l-carnitine and Pramlintide 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 Propionyl-l-carnitine
Steady interest

#1,251 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Pramlintide
Steady interest

#1,851 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 Propionyl-l-carnitine reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Propionyl-l-carnitine and Pramlintide records this page draws on were last updated July 11, 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 Propionyl-l-carnitine

What is Propionyl-l-carnitine?

  • Peripheral artery disease and leg pain
  • Heart and circulation support
  • Energy and exercise performance
  • Erectile dysfunction
  • Diabetic nerve pain

Propionyl-l-carnitine is a form of the amino acid derivative carnitine that the body uses to help turn fat into energy, and it is studied mostly for circulation problems like peripheral artery disease. Some evidence suggests it may help walking distance in people with poor leg circulation, but results are mixed and it is not a substitute for standard medical care. Talk to a pharmacist or doctor before using it, especially if you have a medical condition or take other medicines.

Capsules, tablets, oral powder

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

Propionyl-l-carnitine: dosing

There is no single official dose of PLC for supplement use, and the right amount can depend on the condition being studied and the specific product. They can help you decide whether PLC is appropriate for you and what amount makes sense.Do not assume more is better. Higher doses raise the chance of side effects without guaranteeing more benefit.

From our Propionyl-l-carnitine monograph — the full record covers uses, side effects and every documented interaction.

Read the full Propionyl-l-carnitine monograph & all interactions
Medication

About Pramlintide Injection

What Is Pramlintide Injection Used For?

Brand name: Symlin

SymlinPen (pramlintide) is used as an add-on treatment for adults with type 1 or type 2 diabetes who already use mealtime insulin but still haven't reached their target blood sugar levels — even with optimal insulin therapy.

It is not a replacement for insulin. It works alongside insulin, given right before major meals, to reduce the spike in blood sugar that happens after eating.

See full Pramlintide Injection drug information
Keep checking

Other Drugs & Propionyl-l-carnitine

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

0Major
19Moderate
0Minor
2,810No known interaction
19 Moderate 2,810 No interaction
Moderate

19 interactions

No interaction 2,810 drugs checked — show the list

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

Showing the 60 most looked-up of 2,810 medications checked with no known interaction — see the full Propionyl-l-carnitine list.

See the full Propionyl-l-carnitine interactions page
See every supplement checked against Pramlintide, ranked by severity
Evidence & sources

Propionyl-l-carnitine References

The 12 references that drive our Propionyl-l-carnitine 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. Cherchi A, Lai C, Onnis E, et al. Propionyl carnitine in stable effort angina. Cardiovasc Drugs Ther 1990;4:481-6. PubMed
  2. Bartels GL, Remme WJ, den Hartog FR, et al. Additional anti-ischemic effects of long-term L-propionylcarnitine in anginal patients treated with conventional antianginal therapy. Cardiovasc Drugs Ther 1995;9:749-53.
  3. Caponnetto S, Canale C, Masperone MA, et al. Efficacy of L-propionylcarnitine treatment in patients with left ventricular dysfunction. Eur Heart J 1994;15:1267-73. PubMed
  4. Benvenga S, Ruggeri RM, Russo A, et al. Usefulness of L-carnitine, a naturally occurring peripheral antagonist of thyroid hormone action, in iatrogenic hyperthyroidism: a randomized, double-blind, placebo-controlled clinical trial. J Clin Endocrinol Meta
  5. Martinez E, Domingo P, Roca-Cusachs A. Potentiation of acenocoumarol action by L-carnitine. J Intern Med 1993;233:94.
  6. Bachmann HU, Hoffmann A. Interaction of food supplement L-carnitine with oral anticoagulant acenocoumarol. Swiss Med Wkly 2004;134:385. PubMed
  7. Gentile V, Vicini P, Prigiotti G, et al. Preliminary observations on the use of propionyl-L-carnitine in combination with sildenafil in patients with erectile dysfunction and diabetes. Curr Med Res Opin 2004;20:1377-84. PubMed
  8. 12761 Benvenga S, Amato A, Calvani M, Trimarchi F. Effects of carnitine on thyroid hormone action. Ann N Y Acad Sci 2004;1033:158-67. PubMed
  9. Brass EP, Koster D, Hiatt WR, Amato A. A systematic review and meta-analysis of propionyl-L-carnitine effects on exercise performance in patients with claudication. Vasc Med 2013;18:3-12.
  10. Hiatt WR, Creager MA, Amato A, Brass EP. Effect of propionyl-L-carnitine on a background of monitored exercise in patients with claudication secondary to peripheral artery disease. J Cardiopulm Rehabil Prev 2011;31:125-32. PubMed
  11. Jacobs PL, Goldstein ER, Blackburn W, et al. Glycine propionyl-L-carnitine produces enhanced anaerobic work capacity with reduced lactate accumulation in resistance trained males. J Int Soc Sports Nutr 2009;6:9. PubMed
  12. Jacobs PL, Goldstein ER. Long-term glycine propionyl-l-carnitine supplementation and paradoxical effects on repeated anaerobic sprint performance. J Int Soc Sports Nutr 2010;7:35.

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 Propionyl-l-carnitine and Pramlintide Together: Common Questions

Is it safe to take Propionyl-l-carnitine with Pramlintide?
We do not list a known interaction between Propionyl-l-carnitine and Pramlintide. 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.
Do Propionyl-l-carnitine and Pramlintide have any of the same side effects?
Yes — our sources link each of them separately to 2 of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
How was the Propionyl-l-carnitine and Pramlintide combination checked?
Interactions in our licensed database are recorded against drug classes. Pramlintide is filed under 1 classification, and Propionyl-l-carnitine has documented interactions with 3 drug classes — none of Pramlintide'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 Propionyl-l-carnitine interact with any other medications?
Yes. Propionyl-l-carnitine has 19 documented drug interactions in our database — Pramlintide 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 Pramlintide interact with any supplements?
Yes. Pramlintide has documented interactions with 239 supplements in our database — Propionyl-l-carnitine is not one of them. The Pramlintide 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

Propionyl-l-carnitine monograph Uses, safety profile, and every drug interaction in one place Pramlintide Injection drug information The full plain-English guide to this medication Pramlintide supplement interactions Every supplement checked against Pramlintide, 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 12 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Pramlintide and Propionyl-l-carnitine?

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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.