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Dietary supplement

SAM-e Ingredients & Drug Interactions

by Douglas Laboratories

SAM-e label
See full label image
Tablet Or Pill Category: Non-nutrient/non-botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 23, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking SAM-e against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

SAM-e is a dietary supplement by Douglas Laboratories with 1 active ingredient. Its ingredients are commonly taken for depression, osteoarthritis joint pain, liver conditions.Based on those ingredients, 189 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are S-Adenosylmethionine. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against SAM-e by Douglas Laboratories

Ask about any prescription or over-the-counter medication and we check it for interactions with SAM-e by Douglas Laboratories — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of SAM-e by Douglas Laboratories

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: S-Adenosylmethionine, commonly called SAMe. SAMe is a compound your body makes naturally and uses in many chemical reactions, including some that affect mood, joint health, and liver function.

The tablet also contains several inactive ingredients — microcrystalline cellulose, mannitol, croscarmellose sodium, and others — that help form and preserve the tablet.

Does it work?

Strong evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed

This product doesn't appear to be marketed for a specific use, so we graded Same's overall clinical evidence instead.

Strong

Strong clinical evidence supports Same for:

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.
  • Since the label doesn't commit to one use, we graded the ingredient's overall clinical evidence instead.
  • On file: Osteoarthritis — rated "Likely Effective" (Natural Medicines).
  • On file: Cholestasis — rated "Possibly Effective" (Natural Medicines).
  • On file: Depression — rated "Possibly Effective" (Natural Medicines).

SAMe is likely effective for osteoarthritis, meaning there's solid evidence it may help reduce joint pain and improve function. For depression, the evidence is less certain — it's rated possibly effective, so some people may benefit, but we can't yet guarantee it'll work for everyone.

For liver cholestasis (a bile-flow disorder), it's also possibly effective. For Alzheimer disease and ADHD, we don't have enough reliable evidence yet to say whether it works.

The evidence, ingredient by ingredient Same

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

SAMe is generally well tolerated when you take it at typical doses, though side effects become more common at higher amounts. The most frequent ones are stomach upset — nausea, diarrhea, constipation, or dizziness — along with headache, insomnia, and dry mouth.

One important caution: SAMe may trigger or worsen mania if you have bipolar disorder, so talk to your doctor or pharmacist before taking it if that's your situation. Because long-term safety isn't as well established, use this supplement only under the guidance of your healthcare provider.

There's no pregnancy or breastfeeding safety data on file for SAMe, so discuss it with your doctor if you're pregnant, nursing, or planning to become pregnant.

Side effects, ingredient by ingredient Same

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Same.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: Parkinson's medications.
  • For scale: 189 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before you take SAMe, double-check with your pharmacist if you're on serotonergic drugs — antidepressants (SSRIs, SNRIs, tricyclics), certain pain relievers, migraine drugs, and others that work on serotonin — or if you take levodopa for Parkinson disease. Both carry Moderate risks with this product.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with strong clinical evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.

SAMe may be worth considering if you have osteoarthritis or depression and want to explore a natural option alongside your doctor's guidance. If you take any antidepressants, serotonin-related medications, or levodopa, check with your pharmacist first.

Anyone with bipolar disorder should avoid it. Always talk to your pharmacist before starting.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Mar 24, 2016.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about SAM-e, straight from the product label.

Brand Douglas Laboratories
Barcode (UPC) 310539005705
Net contents 30 Enteric Coated Tablet(s)
Market status On market
Date entered into DSLD Mar 24, 2016
DSLD ID 57532
Product type Non-nutrient/non-botanical
Supplement form Tablet Or Pill
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years), Gluten Free, Dairy Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for SAM-e by Douglas Laboratories, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Tablet(s)
Maximum serving Sizes:
1 Tablet(s)
Servings per container
30
UPC/BARCODE
310539005705
IngredientAmount% DV
S-Adenosylmethionine200 mg--

Other ingredients: Microcrystalline Cellulose, Mannitol, Croscarmellose Sodium, Glycerol Behenate, Vegetable Stearate, Methacrylic Acid Copolymer, Glycerol Palmitostearate, Medium Chain Triglycerides, Titanium Dioxide, Silica, Talc, Triethyl Citrate, Yellow Iron Oxide

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formulation

This product contains NO yeast, wheat, gluten, soy, milk/dairy, corn, or genetically modified organisms (GMOs).

Suggested/Recommended/Usage/Directions

Suggested Usage: As a dietary supplement, adults take 1 tablet daily or as directed by your healthcare professional.

Precautions

KEEP OUT OF REACH OF CHILDREN.

Tamper resistant package, do not use if outer seal is missing.

Storage

For optimal storage conditions, store in a cool, dry place. (59(0)-77(0)F/15(0)-25(0)C) (35-65% relative humidity)

General

Formula #98304

FDA Statement of Identity

A Dietary Supplement

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

SAM-e by Douglas Laboratories label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

SAM-e label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in SAM-e by Douglas Laboratories

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Tablet(s) Dosage formTablet Or Pill Servings per container30 Amounts shown are per serving.

S-Adenosylmethionine

Interacts with
189 drugs
200 mg per serving Form: S-Adenosylmethionine Disulfate Tosylate

SAM-e is a compound your body makes naturally that is sold as a supplement, most often for depression and osteoarthritis. Some research suggests it ma...

S-Adenosylmethionine monograph & interactions

Other (inactive) ingredients: Microcrystalline Cellulose, Mannitol, Croscarmellose Sodium, Glycerol Behenate, Vegetable Stearate, Methacrylic Acid Copolymer, Glycerol Palmitostearate, Medium Chain Triglycerides, Titanium Dioxide, Silica, Talc, Triethyl Citrate, Yellow Iron Oxide. These complete the product’s ingredient list but are not active constituents.

Interaction report

SAM-e by Douglas Laboratories Drug Interactions

Want to check YOUR meds against SAM-e?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
189Drugs
189 Moderate

Ingredients driving the most interactions

S-Adenosylmethionine 189

Individual Drug Interactions

The ingredients in SAM-e interact with 189 drugs. Click any drug to see the details.

1 of the 1 ingredient in SAM-e interact with drugs. Each result below shows which ingredient is responsible. S-Adenosylmethionine

Each ingredient & the kinds of drugs it affects

For each ingredient in SAM-e with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

S-Adenosylmethionine2 drug types · 189 drugs

Levodopa

SAMe might reduce the effectiveness of levodopa.
SAMe methylates levodopa, which might reduce its effectiveness for treating Parkinson disease.

Likelihood Possible Evidence D
Serotonergic Drugs

Taking SAMe with serotonergic drugs might increase the risk of serotonin syndrome and other serotonergic side effects.
SAMe has serotonergic effects. Theoretically, combining serotonergic drugs with SAMe might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders. In one case report, SAMe 100 mg intramuscularly was given daily with clomipramine (Anafranil) 25 mg per day. When the clomipramine dose was increased to 75 mg per day the patient experienced serotonin syndrome about 48-72 hours later, requiring hospitalization.

Likelihood Possible Evidence D
S-Adenosylmethionine full monograph & interactions
The maker

Brand information

Manufacturer and brand details for SAM-e, from the product label.

Douglas Laboratories

See all Douglas Laboratories products
Name
Douglas Laboratories
Street Address
600 Boyce Road
City
Pittsburgh
State
PA
ZipCode
15205
Phone Number
1.800.245.440
Pharmacist Counseling Corner

SAM-e by Douglas Laboratories: Common Questions

Does SAM-e by Douglas Laboratories interact with any medications?
Yes. Based on its ingredients, SAM-e has a known interaction with 189 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
SAM-e contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
What is SAMe, and what's it supposed to do?
SAMe is a compound your body naturally produces and uses in chemical reactions throughout your cells. It's studied mainly for joint health and mood support. Research shows it's likely to help with osteoarthritis pain, and there's some evidence it may help with depression, though that evidence is weaker.
Can SAMe cause stomach problems?
Yes — nausea, diarrhea, constipation, and stomach upset are common side effects, especially at higher doses. Most people tolerate typical doses okay, but if your stomach is sensitive, start low and talk to your pharmacist about how to minimize this.
Is SAMe safe if I have bipolar disorder?
No — SAMe may trigger or worsen mania in people with bipolar disorder. Avoid it, or use only under close supervision from your doctor.
Can I take SAMe while pregnant or breastfeeding?
We don't have enough safety data on file to say whether SAMe is okay in pregnancy or while nursing. Talk to your doctor or pharmacist for personalized advice before taking it.
What inactive ingredients are in this tablet?
The tablet contains microcrystalline cellulose, mannitol, croscarmellose sodium, glycerol behenate, vegetable stearate, and several others that help form and stabilize the tablet. These are common excipients and don't provide therapeutic benefit.
Does SAMe interact with blood thinners or pain relievers?
We've documented a Moderate interaction between SAMe and serotonergic drugs (which includes certain pain relievers and antidepressants). If you take a blood thinner or pain reliever, check the specific medication with your pharmacist or the search tool on this page to be sure.

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

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Ask a pharmacist

Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

SAM-e label
Go deeper

The Full Monographs Behind SAM-e’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Same

Interacts with 189 drugs

SAM-e is a compound your body makes naturally that is sold as a supplement, most often for depression and osteoarthritis. Some research suggests it may help with these conditions, but the qu...

Read the full Same monograph →
Sources

Sources & How We Checked

SAM-e's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 31 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Same 31 references
  1. Perna AF, Castaldo P, Ingrosso D, et al. Homocysteine, a new cardiovascular risk factor, is also a powerful uremic toxin. J Nephrol 1999;12:230-40.
  2. Mato JM, Camara J, Fernandez de Paz J, et al. S-adenosylmethionine in alcoholic liver cirrhosis: a randomized, placebo-controlled, double-blind, multicenter clinical trial. J Hepatol 1999;30:1081-9. PubMed
  3. Iruela LM, Minguez L, Merino J, Monedero G. Toxic interaction of S-adenosylmethionine and clomipramine. Am J Psychiatry 1993;150:522. PubMed
  4. Bradley JD, Flusser D, Katz BP, et al. A randomized, double blind, placebo controlled trial of intravenous loading with S-adenosylmethionine (SAM) followed by oral SAM therapy in patients with knee osteoarthritis. J Rheumatol 1994;21:905-11.
  5. Berlanga C, Ortega-Soto HA, Ontiveros M, Senties H. Efficacy of S-adenosyl-L-methionine in speeding the onset of action of imipramine. Psychiatry Res 1992;44:257-62. PubMed
  6. Kagan BL, Sultzer DL, Rosenlicht N, Gerner RH. Oral S-adenosylmethionine in depression: a randomized, double-blind, placebo-controlled trial. Am J Psychiatry 1990;147:591-5. PubMed
  7. Rosenbaum JF, Fava M, Falk WE, et al. The antidepressant potential of oral S-adenosyl-l-methionine. Acta Psychiatr Scand 1990;81:432-6. PubMed
  8. Domljan Z, Vrhovac B, Durrigl T, Pucar I. A double-blind trial of ademetionine vs naproxen in activated gonarthrosis. Int J Clin Pharmacol Ther Toxicol 1989;27:329-33.
  9. Konig B. A long-term (two years) clinical trial with S-adenosylmethionine for the treatment of osteoarthritis. Am J Med 1987;83:89-94. PubMed
  10. Lipinski JF, Cohen BM, Frankenburg F, et al. Open trial of S-adenosylmethionine for treatment of depression. Am J Psychiatry 1984;141:448-50.
  11. Almasio P, Bortolini M, Pagliaro L, Coltorti M. Role of S-adenosyl-L-methionine in the treatment of intrahepatic cholestasis. Drugs 1990;40:111-23. PubMed
  12. Friedel HA, Goa KL, Benfield P. S-adenosyl-L-methionine. A review of its pharmacological properties and therapeutic potential in liver dysfunction and affective disorders in relation to its physiological role in cell metabolism. Drugs 1989;38:389-416. PubMed
  13. Bottiglieri T, Hyland K, Reynolds EH. The clinical potential of ademetionine (S-adenosylmethionine) in neurological disorders. Drugs 1994;48:137-52. PubMed
  14. Frezza M, Centini G, Cammareri G, et al. S-adenosylmethionine for the treatment of intrahepatic cholestasis of pregnancy. Results of a controlled clinical trial. Hepatogastroenterology 1990;37:122-5.
  15. Singhal AB, Caviness VS, Begleiter AF, et al. Cerebral vasoconstriction and stroke after use of serotonergic drugs. Neurology 2002;58:130-3. PubMed
  16. Charlton CG, Crowell B Jr. Parkinson's disease-like effects of S-adenosyl-L-methionine: effects of L-dopa. Pharmacol Biochem Behav 1992;43:423-31..
  17. Goren JL, Stoll AL, Damico KE, et al. Bioavailability and lack of toxicity of S-adenosyl-L-methionine (SAMe) in humans. Pharmacotherapy 2004;24:1501-7. PubMed
  18. Arnold O, Saletu B, Anderer P, et al. Double-blind, placebo-controlled pharmacodynamic studies with a nutraceutical and a pharmaceutical dose of ademetionine (SAMe) in elderly subjects, utilizing EEG mapping and psychometry. Eur Neuropsychopharmacol 2005; PubMed
  19. Nelson JC. S-adenosyl methionine (SAMe) augmentation in major depressive disorder. (Editorial). Am J Psychiatry 2010;167:889-91.
  20. Kim J, Lee EY, Koh EM, et al. Comparative clinical trial of S-adenosylmethionine versus nabumetone for the treatment of knee osteoarthritis: an 8-week, multicenter, randomized, double-blind, double-dummy, Phase IV study in Korean patients. Clin Ther 2009; PubMed
  21. Manzillo G, Piccinino F, Surrenti C, et al. Multicentre double-blind placebo-controlled study of intravenous and oral S-adenosyl-L-methionine (SAMe) in cholestatic patients with liver disease. Drug Invest 1992;4 (Suppl 4):90-100. DOI
  22. Carrieri PB, Indaco A, Gentile S, et al. S-adenosylmethionine treatment of depressioin in patients with Parkinson's disease: a double-blind, crossover study versus placebo. Curr Ther Res 1990;48(1):154-60.
  23. Pancheri P, Scapicchio P, Delle Chiaie R. A double-blind, randomized parallel-group, efficacy and safety study of intramuscular S-adenosyl-L-methionine 1,4-butanedisulphonate (SAMe) versus imipramine in patients with major depressive disorder. Int J Neuro PubMed
  24. Medici V., Virata M. C., Peerson J. M., Stabler S. P., French S. W., Gregory J. F. III, Albanese A., Bowlus C. L., Devaraj S., Panacek E. A., Richards J. R., Halsted C. H. S-adenosyl-L-methionine treatment for alcoholic liver disease: a double-blinded, ra
  25. Chitiva, H., Audivert, F., and Alvarez, C. Suicide attempt by self-burning associated with ingestion of S-adenosylmethionine: a review of the literature and case report. J.Nerv.Ment.Dis. 2012;200(1):99-101. PubMed
  26. Carney, M. W., Edeh, J., Bottiglieri, T., Reynolds, E. M., and Toone, B. K. Affective illness and S-adenosyl methionine: a preliminary report. Clin Neuropharmacol. 1986;9(4):379-385. PubMed
  27. Miccoli, L., Porro, V., and Bertolino, A. Comparison between the antidepressant activity and of S- adenosylmethionine (SAMe) and that of some tricyclic drugs. Acta Neurol (Napoli) 1978;33 (3):243-255.
  28. Bacci, Ballerini F., Lopez, Anguera A., Alcaraz, P., and Hernandez, Reyes N. [SAMe in the management of postconcussional syndrome]. Medicina Clinica (Barc.) 1983;80(4):161-164.
  29. Muscettola G, Galzenati M, Balbi A. SAMe versus placebo: a double blind comparison in major depressive disorders. Advances in Biochemical Psychopharmacology 1982;32:151-6.
  30. Capretto C, Cremona C, and Canaparo L. A double-blind controlled study of S-adenosylmethionine (SAMe) v. ibuprofen in gonarthrosis, coxarthrosis and spondylarthrosis. Clin Trials J 1985;22(1):15-24.
  31. Ancarani E, Biondi B, Bolletta A, et al. Major depression complicating hemodialysis in patients with chronic renal failure: a multicenter, double-blind, controlled clinical trial of S-adenosyl-L-methionine versus placebo. Curr Ther Res 1993;54(6):680-6. DOI

See these in context on the Same monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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