Lithium 1,000 mcg Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Lithium 1,000 mcg 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
Lithium 1,000 mcg is a dietary supplement by Life Extension with 1 active ingredient. Its ingredients are commonly taken for mood support, bipolar disorder (prescription), healthy mental function.Based on those ingredients, 515 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Lithium. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Lithium 1,000 mcg by Life Extension
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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 Lithium 1,000 mcg by Life Extension
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
This product contains one active ingredient: lithium, a mineral that has been studied for various neurological and psychiatric conditions. The capsule itself is made from microcrystalline cellulose and cellulose, which are inactive fillers.
Does it work?
Not established
The evidence for lithium supplementation is not established in our data. The product's labeled uses—including alcohol use disorder, Alzheimer disease, ALS, anorexia nervosa, and asthma—all carry a rating of insufficient reliable evidence, meaning the studies aren't strong enough yet to say whether it works for those purposes.
How safe is it?
Well-documented data
Lithium has a narrow safety margin, and prescription forms require regular blood monitoring to stay safe. This supplement form is not well studied, so it's unclear how reliable dosing and safety would be at this lower strength.
Lithium crosses the placenta and is linked to birth defects, so it should be avoided in pregnancy unless a doctor directs and monitors it. It also passes into breast milk and may affect a nursing infant, so avoid it while breastfeeding unless supervised by a doctor.
When prescription lithium is stopped abruptly, bipolar symptoms can return quickly, which is why it must be tapered slowly over at least 14 days—something to discuss with your doctor if you're on prescription lithium and considering a supplement.
Meds to double-check
Major interaction found
Before taking this product, check whether you're on serotonergic drugs (antidepressants like SSRIs), diuretics (water pills), NSAIDs (pain relievers like ibuprofen), ACE inhibitors or other blood pressure drugs, antipsychotics, anticonvulsants (seizure drugs), calcium channel blockers, or skeletal muscle relaxants. These are Major or Moderate interactions—run them through the checker below.
The bottom line
Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Major medication interactions have been identified, and safety information is well characterized.
This is a high-interaction product that requires careful medication review. If you take any antidepressant, diuretic, blood pressure drug, pain reliever, antipsychotic, or seizure medication, talk to your pharmacist or doctor before starting.
Lithium supplements are not well studied, and prescription lithium requires blood monitoring for safety—the same caution applies here.
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 25, 2025.
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 Lithium 1,000 mcg, straight from the product label.
| Brand | Life Extension |
|---|---|
| Barcode (UPC) | 737870240310 |
| Net contents | 100 Vegetarian Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Mar 25, 2025 |
| DSLD ID | 328520 |
| Product type | Mineral |
| Supplement form | Capsule |
| Dietary claims / uses | Nutrient, 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 Lithium 1,000 mcg by Life Extension, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Lithium | 1000 mcg | -- |
Other ingredients: Microcrystalline Cellulose, Cellulose
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.
General Statements
Scan for product info
Precautions
Read the entire label and follow the directions carefully prior to use.
Warnings: Keep out of reach of children.
Do not exceed recommended dose. Do not purchase if outer seal is broken or damaged.
When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.
To report a serious adverse event or obtain product information, contact 1-866-280-2852.
Suggested/Recommended/Usage/Directions
Directions: Take one (1) capsule daily or as recommended by a healthcare practitioner.
Storage
Store tightly closed in a cool, dry place.
Formulation
Gluten Free Non GMO Le Certified
Seals/Symbols
Non GMO Le Certified
Formula
Essential mineral for brain and body health
FDA Statement of Identity
Dietary Supplement
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Lithium 1,000 mcg by Life Extension 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 Lithium 1,000 mcg by Life Extension
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Vegetarian Capsule(s) Dosage formCapsule Servings per container100 Amounts shown are per serving.
Lithium
Interacts with515 drugs
Lithium is a naturally occurring metal that, in prescription form (lithium carbonate or citrate), is an FDA-approved, well-proven treatment for bipola...
Lithium monograph & interactionsOther (inactive) ingredients: Microcrystalline Cellulose, Cellulose. These complete the product’s ingredient list but are not active constituents.
Lithium 1,000 mcg by Life Extension Drug Interactions
HelloPharmacist Interaction Report
Life Extension Lithium at this dose interacts with several important medication types, and the most serious concern is serotonergic drugs—antidepressants and similar medications that raise serotonin.
Taking lithium with these can theoretically mask and increase the risk of serotonin syndrome, a potentially dangerous condition. A documented case shows this risk is real in patients on prescription lithium combined with SSRIs and other drugs.
Read the full breakdown — every affected drug type, severity by severity
Diuretics (water pills) are equally serious: they can raise lithium levels in your blood and cause toxicity. Loop and thiazide diuretics are the main culprits, especially if you're eating a low-sodium diet.
NSAIDs (ibuprofen, naproxen), ACE inhibitors (blood pressure drugs), antipsychotics, anticonvulsants, calcium channel blockers, and skeletal muscle relaxants all interact at a Moderate severity level—raising lithium levels, increasing side effects, or raising neurotoxicity risk. It's unclear whether supplement-dose lithium would trigger these effects the way prescription doses do, but the mechanism remains.
Altogether, these interactions span 514 individual medications. Please check your exact medications with the search tool on this page before starting.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Lithium 1,000 mcg?
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 Lithium 1,000 mcg interact with 515 drugs. Click any drug to see the details.
1 of the 1 ingredient in Lithium 1,000 mcg interact with drugs. Each result below shows which ingredient is responsible. Lithium
Acetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumMethylxanthines, Diuretic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with methylxanthines might decrease lithium levels.
Read the full Lithium + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PseudoephedrineChildren's Tylenol Cold Plus Cough, Tylenol Cold Ex Strength
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, SalicylamideRhinogesic GG
How Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylephrineAlka-Seltzer PLUS, Histex SR, Protid
How Acetaminophen, Chlorpheniramine, Phenylephrine interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Chlorpheniramine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, Phenylephrine, SalicylamideRhinogesic, Rhinogesic JR
How Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylpropanolamineAlumadrine, Conex, Sinadrin Max Strength, Sinulin
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Chlorpheniramine, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, OpiumHista-Derfule
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, PhenyltoloxamineNorel Plus
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Phenyltoloxamine interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Phenyltoloxamine interactionAcetaminophen, Chlorpheniramine, PseudoephedrineAlka-Seltzer PLUS Liquid Gels, Children's Tylenol Cold, Codimal, Comtrex, Extra Strength Tylenol Allergy Sinus, Lorsin +3 more
How Acetaminophen, Chlorpheniramine, Pseudoephedrine interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Chlorpheniramine, Pseudoephedrine interactionAcetaminophen, DextromethorphanTylenol Cough Ex Strength
How Acetaminophen, Dextromethorphan interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Dextromethorphan interactionAcetaminophen, Dextromethorphan, Doxylamine, PseudoephedrineVicks NyQuil
How Acetaminophen, Dextromethorphan, Doxylamine, Pseudoephedrine interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Dextromethorphan, Doxylamine, Pseudoephedrine interactionAcetaminophen, Dextromethorphan, Guaifenesin, PhenylephrineConar-A
How Acetaminophen, Dextromethorphan, Guaifenesin, Phenylephrine interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Dextromethorphan, Guaifenesin, Phenylephrine interactionAcetaminophen, Dextromethorphan, Guaifenesin, PhenylpropanolamineAnatuss
How Acetaminophen, Dextromethorphan, Guaifenesin, Phenylpropanolamine interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Dextromethorphan, Guaifenesin, Phenylpropanolamine interactionAcetaminophen, Dextromethorphan, Guaifenesin, PseudoephedrineRobitussin Cold, Severe Cold, Suphedrine Cold/Cough
How Acetaminophen, Dextromethorphan, Guaifenesin, Pseudoephedrine interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Dextromethorphan, Guaifenesin, Pseudoephedrine interactionAcetaminophen, Dextromethorphan, Phenylpropanolamine, PyrilamineTheracaps
How Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine interactionAcetaminophen, Dextromethorphan, PseudoephedrineAlka-Seltzer PLUS Flu Liquid Gels, Non Aspirin Cold Caps, Tylenol Cold, Tylenol Flu Daytime Ex Strength, Tylenol Flu Ex Strength
How Acetaminophen, Dextromethorphan, Pseudoephedrine interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, MeperidineDemerol APAP
How Acetaminophen, Meperidine interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Meperidine interactionAcetaminophen, Pamabrom, PyrilamineMidol Max Strength PMS, Pamprin, Pamprin ES
How Acetaminophen, Pamabrom, Pyrilamine interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumDiuretic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with loop diuretics might increase lithium levels and adverse effects.
Read the full Lithium + Acetaminophen, Pamabrom, Pyrilamine interactionAcetaminophen, Phenylephrine, ChlorpheniramineSuper Cold Tabs
How Acetaminophen, Phenylephrine, Chlorpheniramine interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Acetaminophen, Phenylephrine, Chlorpheniramine interactionAcetazolamideAk-Zol, Diamox
How Acetazolamide interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumDiuretic Drugs, Anticonvulsants Major
Interaction Summary
Theoretically, taking lithium supplements with loop diuretics might increase lithium levels and adverse effects.
Read the full Lithium + Acetazolamide interactionAlmotriptanAlmogran, Axert
How Almotriptan interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Almotriptan interactionAlosetronLotronex
How Alosetron interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Alosetron interactionAmiloride, HydrochlorothiazideAmil-Co, Amilzide, Moduret 25, Moduretic
How Amiloride, Hydrochlorothiazide interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumDiuretic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with loop diuretics might increase lithium levels and adverse effects.
Read the full Lithium + Amiloride, Hydrochlorothiazide interactionAmitriptylineElavil
How Amitriptyline interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Amitriptyline interactionAmitriptyline, ChlordiazepoxideLimbitrol DS
How Amitriptyline, Chlordiazepoxide interacts with Lithium 1,000 mcg — through 1 ingredient. Tap an ingredient for the detail:
LithiumSerotonergic Drugs Major
Interaction Summary
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
Read the full Lithium + Amitriptyline, Chlordiazepoxide interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Lithium 1,000 mcg 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.
Lithium
Diuretic Drugs
Theoretically, taking lithium supplements with loop diuretics might increase lithium levels and adverse effects.
Thiazide diuretics and loop diuretics might reduce lithium excretion, particularly in sodium-restricted patients. If lithium is clinically indicated and other treatment options are unavailable or inadequate in patients using diuretics, lithium treatment can be initiated with extreme caution. Serum lithium should be measured frequently and the doses used should be the lowest dose ordinarily tolerated. It is unclear if this interaction would be clinically significant with the smaller doses found in lithium supplements.
Serotonergic Drugs
Theoretically, taking lithium supplements with serotonergic drugs might both mask and increase the risk of serotonin syndrome.
In a case report, a 67-year-old female with depression and bipolar disorder using lithium in combination with selective serotonin reuptake inhibitors (SSRIs) and other medications developed serotonin syndrome with symptoms of deep tendon hyperreflexia, muscle rigidity, tremor, and hyperthermia. However, agitation, one classical symptom of serotonin syndrome, was lacking. This was thought to be due to masking by lithium toxicity. Lithium can increase serotonin levels, thus, combining serotonergic drugs with lithium might increase the risk of serotonergic side effects including serotonin syndrome and cerebral vasoconstrictive disorders. It is unclear if this interaction would occur with the smaller doses found in lithium supplements.
Ace Inhibitors (Aceis)
Theoretically, taking lithium supplements with ACEIs might increase levels and adverse effects of lithium.
Concomitant administration of ACEIs with lithium may increase lithium concentrations. It is unclear if this interaction would be clinically significant with the smaller doses found in lithium supplements.
Anticonvulsants
Theoretically, taking lithium supplements with anticonvulsants might increase the risk of neurotoxicity.
Drugs such as carbamazepine and phenytoin seem to increase the risk of neurotoxicity. It is unclear if this interaction would occur with the smaller doses found in lithium supplements.
Antipsychotic Drugs
Theoretically, taking lithium supplements with antipsychotic drugs might increase the risk of encephalopathic syndrome.
Encephalopathic syndrome has been reported in multiple patients taking prescription lithium and antipsychotics concomitantly. Symptoms have included weakness and lethargy, fever, confusion, and extrapyramidal symptoms. In some patients, resulting brain damage was irreversible. Although there is no established causal relationship between these symptoms and the combination of lithium and antipsychotic medications, there is a theoretical relationship. It is unclear if this interaction would occur with the smaller doses found in lithium supplements.
Calcium Channel Blockers
Theoretically, taking lithium supplements with calcium channel blockers might reduce lithium levels and might also increase the risk of certain adverse effects.
Calcium channel blockers might reduce lithium concentrations. Monitor lithium levels with concurrent use. Calcium channel blockers might also increase the adverse neurological and gastrointestinal adverse effects of lithium. It is unclear if these interactions would occur with the smaller doses found in lithium supplements.
Methyldopa (Aldomet)
Theoretically, taking lithium supplements with methyldopa might increase the risk of lithium toxicity.
Concurrent use of methyldopa with lithium increases the risk of lithium toxicity. It is unclear if this interaction would be clinically significant with the smaller doses found in lithium supplements.
Methylxanthines
Theoretically, taking lithium supplements with methylxanthines might decrease lithium levels.
Xanthines such as aminophylline, caffeine, and theophylline (Theo-Dur, Theo-24, others) might increase the clearance of lithium. It is unclear if this interaction would be clinically significant with the smaller doses found in lithium supplements.
Nonsteroidal Anti-Inflammatory Drugs (Nsaids)
Theoretically, taking lithium supplements with NSAIDs might increase lithium levels and adverse effects.
NSAIDs can decrease the renal clearance of lithium and increase lithium levels. It is unclear if this interaction would be clinically significant with the smaller doses found in lithium supplements.
Phenothiazines
Theoretically, taking lithium supplements with phenothiazines might decrease the levels and clinical effects of phenothiazines.
Concomitant use of lithium with phenothiazines might reduce lithium concentrations. Lithium might also reduce phenothiazine concentrations, making the pharmacokinetic effect unpredictable. It is unclear if these interactions would occur with the smaller doses found in lithium supplements.
Skeletal Muscle Relaxants
Theoretically, taking lithium supplements with skeletal muscle relaxants might prolong neuromuscular blockade.
Lithium might prolong neuromuscular blockade. It is unclear if this interaction would occur with the smaller doses found in lithium supplements.
Brand information
Manufacturer and brand details for Lithium 1,000 mcg, from the product label.
Life Extension
See all Life Extension products- Name
- Quality Supplements and Vitamins, Inc.
- City
- Ft. Lauderdale
- State
- FL
- ZipCode
- 33309
- Phone Number
- 1-866-280-2852
- Web Address
- LifeExtension.com
Lithium 1,000 mcg by Life Extension: Common Questions
Does Lithium 1,000 mcg by Life Extension interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I take this if I'm on an antidepressant?
Can I take this if I'm on a water pill or diuretic?
Does lithium supplement actually work for anything?
Is it safe if I'm pregnant or breastfeeding?
What are the most common side effects?
Why does this need blood monitoring?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Lithium 1,000 mcg 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 Lithium 1,000 mcg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Lithium 1,000 mcg'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 26 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.
Lithium 26 references
- Martindale W. Martindale the Extra Pharmacopoeia. Pharmaceutical Press, 1999.
- McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
- Perlis RH, Sachs GS, Lafer B, et al. Effect of abrupt change from standard to low serum levels of lithium: a reanalysis of double-blind lithium maintenance data. Am J Psychiatry 2002;159:1155-9.. PubMed
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