Alpha-Lipoic Acid Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Alpha-Lipoic Acid 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
Alpha-Lipoic Acid is a dietary supplement by Douglas Laboratories with 1 active ingredient. Its ingredients are commonly taken for diabetic nerve pain (neuropathy), blood sugar support in diabetes, antioxidant support.Based on those ingredients, 263 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Alpha-Lipoic Acid. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Alpha-Lipoic Acid by Douglas Laboratories
Ask about any prescription or over-the-counter medication and we check it for interactions with Alpha-Lipoic Acid by Douglas Laboratories — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Alpha-Lipoic Acid 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.
What’s inside
Full disclosure
Alpha-Lipoic Acid by Douglas Laboratories contains one active ingredient: alpha-lipoic acid itself. The tablet also contains several inactive ingredients — microcrystalline cellulose, silica, croscarmellose sodium, stearic acid, a coating, and vegetable stearate — which are fillers and binders that help hold the tablet together.
Does it work?
Moderate evidence
The evidence for alpha-lipoic acid is modest. It's rated as possibly effective for diabetic nerve pain (neuropathy) and for high cholesterol and triglycerides (hyperlipidemia), as well as possibly effective for weight management.
That means there's some promising evidence, but it's not strong enough to call it proven. If you're considering this for one of those reasons, talk with your doctor about whether the evidence is compelling enough for your situation and whether it's a good fit alongside your other treatments.
How safe is it?
Well-documented data
Alpha-lipoic acid is generally well tolerated by most adults. The most common side effects when taken by mouth are headache, heartburn, nausea, and vomiting — usually mild.
Some people have reported dizziness, skin rash, or itching. Rare cases have raised concerns about insulin autoimmune syndrome, a condition where the body's immune system attacks insulin-producing cells, but this is uncommon.
One important note: alpha-lipoic acid can lower blood sugar, so it's best used under medical guidance, especially if you have diabetes. There isn't enough reliable safety information to recommend alpha-lipoic acid during pregnancy or while breastfeeding.
If you're pregnant, planning to become pregnant, or nursing, talk with your doctor or pharmacist before starting this supplement.
Meds to double-check
Moderate interaction found
Before taking Alpha-Lipoic Acid, double-check if you use alkylating agents or antitumor antibiotics (chemotherapy drugs) — the antioxidant may interfere with how they work. Also flag blood thinners or antiplatelet drugs like warfarin or aspirin (Moderate concern for increased bleeding), thyroid hormone replacement (Moderate concern it may reduce effectiveness), and diabetes medications (Minor concern for low blood sugar).
Use the search tool to verify your exact prescriptions.
The bottom line
Scorecard at a glanceFully disclosed formula with some supporting evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.
Alpha-Lipoic Acid may be worth considering if you have diabetic nerve pain, high cholesterol, or are working on weight management and want to explore what the evidence supports — but the evidence is modest. Check your medications with the tool on this page first, especially if you take blood thinners, thyroid hormone, diabetes drugs, or are undergoing chemotherapy.
If you're pregnant or breastfeeding, skip this until you've talked with your healthcare provider.
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 Oct 23, 2020.
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
General information
Key facts about Alpha-Lipoic Acid, straight from the product label.
| Brand | Douglas Laboratories |
|---|---|
| Barcode (UPC) | 745287021309 |
| Net contents | 60 Tablet(s) |
| Market status | On market |
| Date entered into DSLD | Oct 23, 2020 |
| DSLD ID | 237208 |
| Product type | Non-nutrient/non-botanical |
| Supplement form | Tablet Or Pill |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten Free |
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 Alpha-Lipoic Acid by Douglas Laboratories, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Alpha-Lipoic Acid | 100 mg | -- |
Other ingredients: Microcrystalline Cellulose, Silica, Croscarmellose Sodium, Stearic Acid, Coating, Vegetable Stearate
Tap any ingredient to jump to its full detail below.
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.
Suggested/Recommended/Usage/Directions
Suggested Usage: As a dietary supplement, adults take 1 tablet, 1-2 times daily, or as directed by your health professional.
Precautions
Warning: If you are pregnant or nursing, or if you are taking prescription medications, consult your health professional before using this supplement.
Keep out of the reach of children.
Use only if safety seal is intact.
Storage
Store in a cool, dry place.
Formulation
Gluten free, Non-GMO
Healthy blood sugar and nerve support
FDA Disclaimer Statement
This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
General Statements
Scan to learn about our manufacturing excellence Contents may not fill package in order to accommodate required labeling. Please rely on stated quantity.
FDA Statement of Identity
Dietary Supplement
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Alpha-Lipoic Acid by Douglas Laboratories label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in Alpha-Lipoic Acid 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 container60 Amounts shown are per serving.
Alpha-Lipoic Acid
Interacts with263 drugs
Alpha-lipoic acid (ALA) is an antioxidant made naturally by the body and found in small amounts in foods. It is most studied for diabetic nerve pain,...
Alpha-Lipoic Acid monograph & interactionsOther (inactive) ingredients: Microcrystalline Cellulose, Silica, Croscarmellose Sodium, Stearic Acid, Coating, Vegetable Stearate. These complete the product’s ingredient list but are not active constituents.
Alpha-Lipoic Acid by Douglas Laboratories Drug Interactions
HelloPharmacist Interaction Report
Alpha-Lipoic Acid by Douglas Laboratories does interact with several medication types, with the most serious concerns involving chemotherapy drugs.
Alpha-lipoic acid is an antioxidant, and there's theoretical concern that its antioxidant effects might reduce how well alkylating agents and antitumor antibiotics work — both classes rely on generating free radicals to kill cancer cells. If you're undergoing chemotherapy, this is a conversation to have with your oncologist before adding this supplement.
Read the full breakdown — every affected drug type, severity by severity
You'll also want to check if you take blood thinners or antiplatelet drugs like warfarin or aspirin. Alpha-lipoic acid may increase bleeding risk in theory, though the evidence comes mainly from lab work rather than patient studies.
If you're on thyroid hormone replacement, there's a Moderate concern that alpha-lipoic acid might reduce how well your body converts it into its active form. Finally, because alpha-lipoic acid can theoretically lower blood sugar, using it alongside diabetes medications carries a Minor interaction risk — though larger studies haven't shown a meaningful blood-sugar-lowering effect in actual patients.
Alongether, these interactions span 262 individual medications. Use the medication checker below to search for your specific drugs before you start.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Alpha-Lipoic Acid?
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 checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Alpha-Lipoic Acid interact with 263 drugs. Click any drug to see the details.
1 of the 1 ingredient in Alpha-Lipoic Acid interact with drugs. Each result below shows which ingredient is responsible. Alpha-Lipoic Acid
Aspirin, Caffeine, Phenacetin, PropoxypheneMargesic Comp. 65
How Aspirin, Caffeine, Phenacetin, Propoxyphene interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Aspirin, Caffeine, Phenacetin, Propoxyphene interactionAspirin, Calcium Carbonate, Magnesium Carbonate, Magnesium OxideBufferin
How Aspirin, Calcium Carbonate, Magnesium Carbonate, Magnesium Oxide interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Aspirin, Calcium Carbonate, Magnesium Carbonate, Magnesium Oxide interactionAspirin, CarisoprodolSoma Compound
How Aspirin, Carisoprodol interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Aspirin, Carisoprodol interactionAspirin, Carisoprodol, Codeine PhosphateSoma Compound w/ Codeine
How Aspirin, Carisoprodol, Codeine Phosphate interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Aspirin, Carisoprodol, Codeine Phosphate interactionAspirin, Chlorpheniramine, PhenylpropanolamineAlka-Seltzer Plus Cold
How Aspirin, Chlorpheniramine, Phenylpropanolamine interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Aspirin, Chlorpheniramine, Phenylpropanolamine interactionAspirin, Citric Acid, Sodium BicarbonateAlka-Seltzer Pain Reliever and Antacid
How Aspirin, Citric Acid, Sodium Bicarbonate interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Aspirin, Citric Acid, Sodium Bicarbonate interactionAspirin, Codeine PhosphateAspirin w/ Codeine
How Aspirin, Codeine Phosphate interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Aspirin, Codeine Phosphate interactionAspirin, Codeine Phosphate, MethocarbamolRobaxisal C
How Aspirin, Codeine Phosphate, Methocarbamol interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Aspirin, Codeine Phosphate, Methocarbamol interactionAspirin, Codeine Phosphate, PhenobarbitalPhenaphen
How Aspirin, Codeine Phosphate, Phenobarbital interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Aspirin, Codeine Phosphate, Phenobarbital interactionAspirin, Diphenhydramine, PhenylpropanolamineAlka Seltzer Plus Night Time Effervescent
How Aspirin, Diphenhydramine, Phenylpropanolamine interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Aspirin, Diphenhydramine, Phenylpropanolamine interactionAspirin, DipyridamoleAggrenox, Asasantin Retard
How Aspirin, Dipyridamole interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Aspirin, Dipyridamole interactionAspirin, Ethoheptazine, MeprobamateEquagesic
How Aspirin, Ethoheptazine, Meprobamate interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Aspirin, Ethoheptazine, Meprobamate interactionAspirin, HydrocodoneAlor 5 500, Lortab ASA
How Aspirin, Hydrocodone interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Aspirin, Hydrocodone interactionAspirin, MeprobamateMicrainin
How Aspirin, Meprobamate interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Aspirin, Meprobamate interactionAspirin, MethocarbamolRobaxisal
How Aspirin, Methocarbamol interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Aspirin, Methocarbamol interactionAspirin, OmeprazoleYosprala
How Aspirin, Omeprazole interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Aspirin, Omeprazole interactionAspirin, OxycodonePercodan
How Aspirin, Oxycodone interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Aspirin, Oxycodone interactionAspirin, PentazocineTalwin Compound
How Aspirin, Pentazocine interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Aspirin, Pentazocine interactionBendamustineBelrapzo, Treanda, Vivimusta
How Bendamustine interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAlkylating Agents Moderate
Interaction Summary
Theoretically, the antioxidant effects of alpha-lipoic acid might alter the effectiveness of alkylating agents.
Read the full Alpha-lipoic Acid + Bendamustine interactionBendamustine HydrochlorideBendeka
How Bendamustine Hydrochloride interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAlkylating Agents Moderate
Interaction Summary
Theoretically, the antioxidant effects of alpha-lipoic acid might alter the effectiveness of alkylating agents.
Read the full Alpha-lipoic Acid + Bendamustine Hydrochloride interactionBetrixabanBevyxxa
How Betrixaban interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Betrixaban interactionBivalirudinAngiomax, Angiomax Rtu, Angiox
How Bivalirudin interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Bivalirudin interactionBleomycinBlenoxane
How Bleomycin interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAntitumor Antibiotics Moderate
Interaction Summary
Theoretically, the antioxidant effects of alpha-lipoic acid might alter the effectiveness of antitumor antibiotics.
Read the full Alpha-lipoic Acid + Bleomycin interactionBromfenac SodiumBromsite, Prolensa
How Bromfenac Sodium interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Bromfenac Sodium interactionBusulfanBusulfex, Myleran
How Busulfan interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAlkylating Agents Moderate
Interaction Summary
Theoretically, the antioxidant effects of alpha-lipoic acid might alter the effectiveness of alkylating agents.
Read the full Alpha-lipoic Acid + Busulfan interactionCabliviCablivi
How Cablivi interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Cablivi interactionCangrelorKengreal
How Cangrelor interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Alpha-lipoic Acid + Cangrelor interactionCarboplatinParaplatin
How Carboplatin interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAlkylating Agents Moderate
Interaction Summary
Theoretically, the antioxidant effects of alpha-lipoic acid might alter the effectiveness of alkylating agents.
Read the full Alpha-lipoic Acid + Carboplatin interactionCarmustineBiCNU, Gliadel, Gliadel Wafer
How Carmustine interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAlkylating Agents Moderate
Interaction Summary
Theoretically, the antioxidant effects of alpha-lipoic acid might alter the effectiveness of alkylating agents.
Read the full Alpha-lipoic Acid + Carmustine interactionChlorambucilLeukeran
How Chlorambucil interacts with Alpha-Lipoic Acid — through 1 ingredient. Tap an ingredient for the detail:
Alpha-lipoic AcidAlkylating Agents Moderate
Interaction Summary
Theoretically, the antioxidant effects of alpha-lipoic acid might alter the effectiveness of alkylating agents.
Read the full Alpha-lipoic Acid + Chlorambucil interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Alpha-Lipoic Acid 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.
Alpha-Lipoic Acid
Alkylating Agents
Theoretically, the antioxidant effects of alpha-lipoic acid might alter the effectiveness of alkylating agents.
The use of antioxidants like alpha-lipoic acid during chemotherapy is controversial. There are concerns that antioxidants could reduce the activity of chemotherapy drugs that generate free radicals. However, some researchers theorize that antioxidants might make chemotherapy more effective by reducing oxidative stress that might interfere with apoptosis (cell death) of cancer cells. More evidence is needed to determine what effect, if any, antioxidants such as alpha-lipoic acid have on chemotherapy. Advise patients to consult their oncologist before using alpha-lipoic acid.
Anticoagulant/Antiplatelet Drugs
Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
In vitro, alpha-lipoic acid inhibits platelet aggregation.
Antitumor Antibiotics
Theoretically, the antioxidant effects of alpha-lipoic acid might alter the effectiveness of antitumor antibiotics.
The use of antioxidants like alpha-lipoic acid during chemotherapy is controversial. There are concerns that antioxidants could reduce the activity of antitumor antibiotic drugs, which work by generating free radicals. However, some researchers theorize that antioxidants might make chemotherapy more effective by reducing oxidative stress that might interfere with apoptosis (cell death) of cancer cells. More evidence is needed to determine what effect, if any, antioxidants such as alpha-lipoic acid have on chemotherapy involving antitumor antibiotics. Advise patients to consult their oncologist before using alpha-lipoic acid.
Thyroid Hormone
Theoretically, alpha-lipoic acid might decrease the effects of thyroid hormone drugs.
Animal research suggests that co-administration of thyroxine with alpha-lipoic acid reduces conversion into the active T3 form.
Antidiabetes Drugs
Theoretically, taking alpha-lipoic acid with antidiabetes drugs might increase the risk of hypoglycemia.
Although some small clinical studies have suggested that alpha-lipoic acid can lower blood glucose levels, larger clinical studies in patients with diabetes have shown no clinically meaningful effect. Additionally, co-administration of single doses of alpha-lipoic acid and glyburide or acarbose did not cause detectable drug interactions in healthy volunteers.
Brand information
Manufacturer and brand details for Alpha-Lipoic Acid, 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
- 1.800.245.4440
- Web Address
- www.douglaslabs.com
Alpha-Lipoic Acid by Douglas Laboratories: Common Questions
Does Alpha-Lipoic Acid by Douglas Laboratories interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Will this help my diabetic nerve pain?
Can I take this if I'm on blood thinners?
What side effects should I expect?
Is it safe to take during pregnancy?
Can I take this with my thyroid medication?
Will this lower my blood sugar?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Alpha-Lipoic Acid is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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.
The Full Monographs Behind Alpha-Lipoic Acid’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Alpha-Lipoic Acid'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.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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 48 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.
Alpha-lipoic Acid 48 references
- Labriola D, Livingston R. Possible interactions between dietary antioxidants and chemotherapy. Oncology 1999;13:1003-8.
- Anon. Alpha-lipoic acid. Altern Med Rev 1998;3:308-10.
- Konrad T, Vicini P, Kusterer K, et al. Alpha-lipoic acid treatment decreases serum lactate and pyruvate concentrations and improves glucose effectiveness in lean and obese patients with Type 2 diabetes. Diabetes Care 1999;22:280-7. PubMed
- Ziegler D, Hanefeld M, Ruhnau KJ, et al. Treatment of symptomatic diabetic peripheral neuropathy with the antioxidant alpha-lipoic acid: A 3-week, multicentre randomized controlled trial (ALADIN Study). Diabetologia 1995;38:1425-33.
- Gleiter CH, Schreeb KH, Freudenthaler S, et al. Lack of interaction between thioctic acid, glibenclamide and acarbose. Br J Clin Pharmacol 1999;48:819-25. PubMed
- Jacob S, Henriksen EJ, Tritschler HJ, et al. Improvement of insulin-stimulated glucose-disposal in type 2 diabetes after repeated parenteral administration of thioctic acid. Exp Clin Endocrinol Diabet 1996;104:284-8. PubMed
- Jacob S, Henriksen EJ, Schiemann AL, et al. Enhancement of glucose disposal in patients with type 2 diabetes by alpha-lipoic acid. Arzneimittelforschung 1995;45:872-4.
- Jacob S, Ruus P, Hermann R, et al. Oral administration of RAC-alpha-lipoic acid modulates insulin sensitivity in patients with type-2 diabetes mellitus: a placebo-controlled, pilot trial. Free Rad Biol Med 1999;27:309-14.
- Segermann J, Hotze A, Ulrich H, Rao GS. Effect of alpha-lipoic acid on the peripheral conversion of thyroxine to triiodothyronine and on serum lipid-, protein- and glucose levels. Arzneimittelforschung 1991;41:1294-8.
- Beitner H. Randomized, placebo controlled, double-blind study on the clinical efficacy of a cream containing 5% alpha-lipoic acid related to photoaging of facial skin. Br J Dermatol 2003;149:841-9.
- Ziegler D, Nowak H, Kempler P, et al. Treatment of symptomatic diabetic polyneuropathy with the antioxidant alpha-lipoic acid: A meta-analysis. Diabet Med 2004;21:114-21.
- Prasad KN. Rationale for using high-dose multiple dietary antioxidants as an adjunct to radiation therapy and chemotherapy. J Nutr 2004;134:3182S-3S. PubMed
- Conklin KA. Cancer chemotherapy and antioxidants. J Nutr 2004;134:3201S-3204S. PubMed
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