# Interaction Checker (interaction-checker.com) > Free drug interaction checker. Every result quotes the FDA prescribing label sentence it came from, with a DailyMed link. Covers prescription and OTC drugs plus supplements, vitamins, foods, alcohol, tobacco, and cannabis. No account, no ads, no tracking; the medication list stays in the browser. ## Method - Source: FDA prescribing labels via openFDA/DailyMed (public domain); NIH ODS, NCCIH, FDA, and NIAAA fact sheets for supplement/food/alcohol rules. - Matching: whole-word search of each label's boxed warning, contraindications, warnings, and drug interactions sections for the other drug's name or drug class, in both directions. - Severity: Major (boxed warning, contraindications, or wording such as contraindicated/avoid/not recommended), Moderate (monitor/dose/adjust wording), Minor (plain mention), No significant interaction (label explicitly reports none). ## Pages - / The checker (client-side; supports ?d=id1,id2 links) - /drugs Drugs A to Z - /drugs/ Every documented interaction for one drug - /drugs//pills What the drug looks like: every tablet/capsule version in its FDA labels (imprint, color, shape, size, labeler) with rendered images - /drugs//facts Sourced facts, community claims with evidence status, common misconceptions, and FAQ (every line cites its source) - /pills Pill images by drug - /supplements Supplements, food, and alcohol - /supplements/ Every drug label mentioning that item, plus curated rules - /interactions/-and- One pair, all quotes, both labels - /guide How drug interactions work - /guides Reference guides on the label data: serotonin syndrome, opioids with benzodiazepines and other sedatives, QT prolongation, bleeding risk, alcohol, grapefruit, and the 2026 report on interaction warnings in FDA labels - /guides/.md Each guide as plain markdown, same words and numbers as the page - /about Method, sources, limits, data dates, FAQ - /disclaimer Medical disclaimer ## Languages - Every page above except /disclaimer exists in English (no prefix) and under /fr /es /de /pt /pl /id /tr /ar /hi (for example /es/interactions/-and-). Slugs are the same in every language. - Drug names are shown as each language writes them (paracetamol for acetaminophen outside the US). A label sentence shown in translation always has the English FDA original beside it; the English sentence is the evidence. ## Free API and MCP server (no key, no auth) - /api Developer docs for the REST API - /api/v1 API index (JSON): endpoints, limits, data dates - /api/v1/openapi.json OpenAPI 3.1 description - /api/v1/checks?items=lisinopril,ibuprofen Every pair among the items with severity and verbatim label quotes (GET or POST {"items":[...]}) - /api/v1/substances?q=advil Typo-tolerant search by name, brand, alias, class, or plain language - /api/v1/substances/ One substance: names, classes, label source, interaction counts - /api/v1/substances//interactions Everything it interacts with, most severe first - /api/v1/substances//pills Tablet and capsule versions with image URLs - /api/v1/substances//facts Sourced facts, community claims with status, misconceptions, FAQ - /mcp MCP server (Streamable HTTP, stateless) with tools check_interactions, search_substances, get_substance, get_substance_interactions, get_pill_appearances, get_drug_facts, and the ChatGPT connector pair search/fetch. Setup for each client at /mcp-server. - Limits: 10 requests per minute per IP, 10 items per check. Need more? Request a higher limit at https://interaction-checker.com/api?request=higher-limits. Responses are cacheable for an hour. Link back to interaction-checker.com when showing results. ## Pill images - Appearance data: DailyMed SPL product characteristics (SPLCOLOR, SPLSHAPE, SPLSIZE, SPLIMPRINT, SPLSCORE) per labeler. - Images: renderings generated from those fields, not photographs; the imprint and proportions match the label. Served from img.interaction-checker.com; reuse with a link back. ## Community claims - "What people say online" items are collected from public forums and review sites and shown next to primary-source evidence with a status (unproven, partly supported, disputed, debunked). They are not facts. ## Not medical advice Severity reflects label wording, not an individual's situation. Absence of a documented interaction is not evidence of safety. ## All drug and supplement pages (1190) - https://interaction-checker.com/drugs/abacavir - https://interaction-checker.com/drugs/abacavir-and-lamivudine - https://interaction-checker.com/drugs/abatacept - https://interaction-checker.com/drugs/abiraterone - https://interaction-checker.com/drugs/abrocitinib - https://interaction-checker.com/drugs/acalabrutinib - https://interaction-checker.com/drugs/acamprosate - https://interaction-checker.com/drugs/acarbose - https://interaction-checker.com/drugs/acebutolol - https://interaction-checker.com/drugs/acetaminophen - https://interaction-checker.com/drugs/acetaminophen-and-codeine - https://interaction-checker.com/drugs/acetaminophen-and-ibuprofen - https://interaction-checker.com/drugs/acetazolamide - https://interaction-checker.com/drugs/acetylcysteine - https://interaction-checker.com/drugs/acitretin - https://interaction-checker.com/drugs/aclidinium - https://interaction-checker.com/drugs/acyclovir - https://interaction-checker.com/drugs/adalimumab - https://interaction-checker.com/drugs/adapalene - https://interaction-checker.com/drugs/adefovir - https://interaction-checker.com/drugs/adenosine - https://interaction-checker.com/drugs/afatinib - https://interaction-checker.com/drugs/albendazole - https://interaction-checker.com/drugs/albuterol - https://interaction-checker.com/drugs/alemtuzumab - https://interaction-checker.com/drugs/alendronate - https://interaction-checker.com/drugs/alfuzosin - https://interaction-checker.com/drugs/aliskiren - https://interaction-checker.com/drugs/allopurinol - https://interaction-checker.com/drugs/almotriptan - https://interaction-checker.com/drugs/alogliptin - https://interaction-checker.com/drugs/alogliptin-and-metformin - https://interaction-checker.com/drugs/alosetron - https://interaction-checker.com/drugs/alpelisib - https://interaction-checker.com/drugs/alprazolam - https://interaction-checker.com/drugs/alprostadil - https://interaction-checker.com/drugs/alteplase - https://interaction-checker.com/drugs/alvimopan - https://interaction-checker.com/drugs/amantadine - https://interaction-checker.com/drugs/ambrisentan - https://interaction-checker.com/drugs/amikacin - https://interaction-checker.com/drugs/amiloride - https://interaction-checker.com/drugs/aminocaproic-acid - https://interaction-checker.com/drugs/aminophylline - https://interaction-checker.com/drugs/amiodarone - https://interaction-checker.com/drugs/amitriptyline - https://interaction-checker.com/drugs/amlodipine - https://interaction-checker.com/drugs/amlodipine-and-atorvastatin - https://interaction-checker.com/drugs/amlodipine-and-benazepril - https://interaction-checker.com/drugs/amlodipine-and-olmesartan - https://interaction-checker.com/drugs/amlodipine-and-valsartan - https://interaction-checker.com/drugs/amoxapine - https://interaction-checker.com/drugs/amoxicillin - https://interaction-checker.com/drugs/amoxicillin-and-clavulanate - https://interaction-checker.com/drugs/amphetamine - https://interaction-checker.com/drugs/amphetamine-and-dextroamphetamine - https://interaction-checker.com/drugs/amphotericin-b - https://interaction-checker.com/drugs/ampicillin - https://interaction-checker.com/drugs/ampicillin-and-sulbactam - https://interaction-checker.com/drugs/anagrelide - https://interaction-checker.com/drugs/anastrozole - https://interaction-checker.com/drugs/anidulafungin - https://interaction-checker.com/drugs/apixaban - https://interaction-checker.com/drugs/apraclonidine - https://interaction-checker.com/drugs/apremilast - https://interaction-checker.com/drugs/aprepitant - https://interaction-checker.com/drugs/arformoterol - https://interaction-checker.com/drugs/argatroban - https://interaction-checker.com/drugs/aripiprazole - https://interaction-checker.com/drugs/armodafinil - https://interaction-checker.com/drugs/arsenic-trioxide - https://interaction-checker.com/drugs/articaine-and-epinephrine - https://interaction-checker.com/drugs/asenapine - https://interaction-checker.com/drugs/aspirin - https://interaction-checker.com/drugs/aspirin-and-dipyridamole - https://interaction-checker.com/drugs/atazanavir - https://interaction-checker.com/drugs/atenolol - https://interaction-checker.com/drugs/atenolol-and-chlorthalidone - https://interaction-checker.com/drugs/atomoxetine - https://interaction-checker.com/drugs/atorvastatin - https://interaction-checker.com/drugs/atovaquone - https://interaction-checker.com/drugs/atovaquone-and-proguanil - https://interaction-checker.com/drugs/atracurium - https://interaction-checker.com/drugs/atropine - https://interaction-checker.com/drugs/atropine-and-pralidoxime - https://interaction-checker.com/drugs/auranofin - https://interaction-checker.com/drugs/avanafil - https://interaction-checker.com/drugs/axitinib - https://interaction-checker.com/drugs/azathioprine - https://interaction-checker.com/drugs/azelastine - https://interaction-checker.com/drugs/azelastine-and-fluticasone - https://interaction-checker.com/drugs/azilsartan - https://interaction-checker.com/drugs/azithromycin - https://interaction-checker.com/drugs/aztreonam - https://interaction-checker.com/drugs/bacitracin - https://interaction-checker.com/drugs/baclofen - https://interaction-checker.com/drugs/baloxavir-marboxil - https://interaction-checker.com/drugs/balsalazide - https://interaction-checker.com/drugs/baricitinib - https://interaction-checker.com/drugs/beclomethasone - https://interaction-checker.com/drugs/belladonna-and-opium - https://interaction-checker.com/drugs/bempedoic-acid - https://interaction-checker.com/drugs/benazepril - https://interaction-checker.com/drugs/benazepril-and-hydrochlorothiazide - https://interaction-checker.com/drugs/bendamustine - https://interaction-checker.com/drugs/benralizumab - https://interaction-checker.com/drugs/benzonatate - https://interaction-checker.com/drugs/benzphetamine - https://interaction-checker.com/drugs/benztropine - https://interaction-checker.com/drugs/betamethasone - https://interaction-checker.com/drugs/betaxolol - https://interaction-checker.com/drugs/bethanechol - https://interaction-checker.com/drugs/bevacizumab - https://interaction-checker.com/drugs/bexagliflozin - https://interaction-checker.com/drugs/bexarotene - https://interaction-checker.com/drugs/bicalutamide - https://interaction-checker.com/drugs/bictegravir-emtricitabine-and-tenofovir-alafenamide - https://interaction-checker.com/drugs/bimatoprost - https://interaction-checker.com/drugs/bisacodyl - https://interaction-checker.com/drugs/bismuth-subcitrate-metronidazole-and-tetracycline - https://interaction-checker.com/drugs/bismuth-subsalicylate - https://interaction-checker.com/drugs/bisoprolol - https://interaction-checker.com/drugs/bisoprolol-and-hydrochlorothiazide - https://interaction-checker.com/drugs/bivalirudin - https://interaction-checker.com/drugs/bleomycin - https://interaction-checker.com/drugs/bortezomib - https://interaction-checker.com/drugs/bosentan - https://interaction-checker.com/drugs/bosutinib - https://interaction-checker.com/drugs/botulinum-toxin-type-a - https://interaction-checker.com/drugs/brexpiprazole - https://interaction-checker.com/drugs/brimonidine - https://interaction-checker.com/drugs/brimonidine-and-timolol - https://interaction-checker.com/drugs/brincidofovir - https://interaction-checker.com/drugs/brinzolamide - https://interaction-checker.com/drugs/brivaracetam - https://interaction-checker.com/drugs/bromocriptine - https://interaction-checker.com/drugs/brompheniramine-pseudoephedrine-and-dextromethorphan - https://interaction-checker.com/drugs/budesonide - https://interaction-checker.com/drugs/budesonide-and-formoterol - https://interaction-checker.com/drugs/bumetanide - https://interaction-checker.com/drugs/bupivacaine - https://interaction-checker.com/drugs/bupivacaine-and-epinephrine - https://interaction-checker.com/drugs/buprenorphine - https://interaction-checker.com/drugs/buprenorphine-and-naloxone - https://interaction-checker.com/drugs/bupropion - https://interaction-checker.com/drugs/buspirone - https://interaction-checker.com/drugs/busulfan - https://interaction-checker.com/drugs/butalbital-and-acetaminophen - https://interaction-checker.com/drugs/butalbital-acetaminophen-and-caffeine - https://interaction-checker.com/drugs/butalbital-acetaminophen-caffeine-and-codeine - https://interaction-checker.com/drugs/butalbital-aspirin-and-caffeine - https://interaction-checker.com/drugs/butalbital-aspirin-caffeine-and-codeine - https://interaction-checker.com/drugs/butorphanol - https://interaction-checker.com/drugs/cabergoline - https://interaction-checker.com/drugs/cabotegravir - https://interaction-checker.com/drugs/cabozantinib - https://interaction-checker.com/drugs/calcipotriene - https://interaction-checker.com/drugs/calcitonin-salmon - https://interaction-checker.com/drugs/calcitriol - https://interaction-checker.com/drugs/calcium-acetate - https://interaction-checker.com/drugs/calcium-chloride - https://interaction-checker.com/drugs/calcium-gluconate - https://interaction-checker.com/drugs/canagliflozin - https://interaction-checker.com/drugs/candesartan - https://interaction-checker.com/drugs/candesartan-and-hydrochlorothiazide - https://interaction-checker.com/drugs/cangrelor - https://interaction-checker.com/drugs/cannabidiol - https://interaction-checker.com/drugs/capecitabine - https://interaction-checker.com/drugs/capsaicin - https://interaction-checker.com/drugs/captopril - https://interaction-checker.com/drugs/carbamazepine - https://interaction-checker.com/drugs/carbidopa - https://interaction-checker.com/drugs/carbidopa-and-levodopa - https://interaction-checker.com/drugs/carbidopa-levodopa-and-entacapone - https://interaction-checker.com/drugs/carbinoxamine - https://interaction-checker.com/drugs/carboplatin - https://interaction-checker.com/drugs/carboprost - https://interaction-checker.com/drugs/cariprazine - https://interaction-checker.com/drugs/carisoprodol - https://interaction-checker.com/drugs/carmustine - https://interaction-checker.com/drugs/carvedilol - https://interaction-checker.com/drugs/caspofungin - https://interaction-checker.com/drugs/cefaclor - https://interaction-checker.com/drugs/cefadroxil - https://interaction-checker.com/drugs/cefazolin - https://interaction-checker.com/drugs/cefdinir - https://interaction-checker.com/drugs/cefepime - https://interaction-checker.com/drugs/cefixime - https://interaction-checker.com/drugs/cefotaxime - https://interaction-checker.com/drugs/cefotetan - https://interaction-checker.com/drugs/cefoxitin - https://interaction-checker.com/drugs/cefpodoxime - https://interaction-checker.com/drugs/cefprozil - https://interaction-checker.com/drugs/ceftaroline - https://interaction-checker.com/drugs/ceftazidime - https://interaction-checker.com/drugs/ceftriaxone - https://interaction-checker.com/drugs/cefuroxime - https://interaction-checker.com/drugs/celecoxib - https://interaction-checker.com/drugs/cenobamate - https://interaction-checker.com/drugs/cephalexin - https://interaction-checker.com/drugs/cetirizine - https://interaction-checker.com/drugs/cevimeline - https://interaction-checker.com/drugs/chenodiol - https://interaction-checker.com/drugs/chlordiazepoxide - https://interaction-checker.com/drugs/chlordiazepoxide-and-clidinium - https://interaction-checker.com/drugs/chloroprocaine - https://interaction-checker.com/drugs/chloroquine - https://interaction-checker.com/drugs/chlorothiazide - https://interaction-checker.com/drugs/chlorpheniramine - https://interaction-checker.com/drugs/chlorpromazine - https://interaction-checker.com/drugs/chlorthalidone - https://interaction-checker.com/drugs/chlorzoxazone - https://interaction-checker.com/drugs/cholestyramine - https://interaction-checker.com/drugs/choriogonadotropin-alfa - https://interaction-checker.com/drugs/chorionic-gonadotropin - https://interaction-checker.com/drugs/ciclesonide - https://interaction-checker.com/drugs/cidofovir - https://interaction-checker.com/drugs/cilostazol - https://interaction-checker.com/drugs/cimetidine - https://interaction-checker.com/drugs/cinacalcet - https://interaction-checker.com/drugs/ciprofloxacin - https://interaction-checker.com/drugs/cisatracurium - https://interaction-checker.com/drugs/cisplatin - https://interaction-checker.com/drugs/citalopram - https://interaction-checker.com/drugs/cladribine - https://interaction-checker.com/drugs/clarithromycin - https://interaction-checker.com/drugs/clemastine - https://interaction-checker.com/drugs/clindamycin - https://interaction-checker.com/drugs/clobazam - https://interaction-checker.com/drugs/clobetasol - https://interaction-checker.com/drugs/clofarabine - https://interaction-checker.com/drugs/clomiphene - https://interaction-checker.com/drugs/clomipramine - https://interaction-checker.com/drugs/clonazepam - https://interaction-checker.com/drugs/clonidine - https://interaction-checker.com/drugs/clopidogrel - https://interaction-checker.com/drugs/clorazepate - https://interaction-checker.com/drugs/clotrimazole - https://interaction-checker.com/drugs/clozapine - https://interaction-checker.com/drugs/cocaine - https://interaction-checker.com/drugs/codeine - https://interaction-checker.com/drugs/colchicine - https://interaction-checker.com/drugs/colesevelam - https://interaction-checker.com/drugs/colestipol - https://interaction-checker.com/drugs/colistimethate - https://interaction-checker.com/drugs/conjugated-estrogens - https://interaction-checker.com/drugs/conjugated-estrogens-and-bazedoxifene - https://interaction-checker.com/drugs/corticotropin - https://interaction-checker.com/drugs/cromolyn - https://interaction-checker.com/drugs/cyclobenzaprine - https://interaction-checker.com/drugs/cyclopentolate - https://interaction-checker.com/drugs/cyclophosphamide - https://interaction-checker.com/drugs/cyclosporine - https://interaction-checker.com/drugs/cyproheptadine - https://interaction-checker.com/drugs/cysteamine - https://interaction-checker.com/drugs/cytarabine - https://interaction-checker.com/drugs/dabigatran - https://interaction-checker.com/drugs/dacarbazine - https://interaction-checker.com/drugs/dalfampridine - https://interaction-checker.com/drugs/danazol - https://interaction-checker.com/drugs/dantrolene - https://interaction-checker.com/drugs/dapagliflozin - https://interaction-checker.com/drugs/dapagliflozin-and-metformin - https://interaction-checker.com/drugs/dapsone - https://interaction-checker.com/drugs/daptomycin - https://interaction-checker.com/drugs/daridorexant - https://interaction-checker.com/drugs/darifenacin - https://interaction-checker.com/drugs/darunavir - https://interaction-checker.com/drugs/darunavir-and-cobicistat - https://interaction-checker.com/drugs/dasatinib - https://interaction-checker.com/drugs/daunorubicin - https://interaction-checker.com/drugs/deferasirox - https://interaction-checker.com/drugs/deferiprone - https://interaction-checker.com/drugs/deferoxamine - https://interaction-checker.com/drugs/deflazacort - https://interaction-checker.com/drugs/demeclocycline - https://interaction-checker.com/drugs/denosumab - https://interaction-checker.com/drugs/desflurane - https://interaction-checker.com/drugs/desipramine - https://interaction-checker.com/drugs/desloratadine - https://interaction-checker.com/drugs/desmopressin - https://interaction-checker.com/drugs/desogestrel-and-ethinyl-estradiol - https://interaction-checker.com/drugs/desonide - https://interaction-checker.com/drugs/desvenlafaxine - https://interaction-checker.com/drugs/deutetrabenazine - https://interaction-checker.com/drugs/dexamethasone - https://interaction-checker.com/drugs/dexchlorpheniramine - https://interaction-checker.com/drugs/dexlansoprazole - https://interaction-checker.com/drugs/dexmedetomidine - https://interaction-checker.com/drugs/dexmethylphenidate - https://interaction-checker.com/drugs/dexrazoxane - https://interaction-checker.com/drugs/dextroamphetamine - https://interaction-checker.com/drugs/dextromethorphan - https://interaction-checker.com/drugs/dextromethorphan-and-quinidine - https://interaction-checker.com/drugs/diazepam - https://interaction-checker.com/drugs/diazoxide - https://interaction-checker.com/drugs/dichlorphenamide - https://interaction-checker.com/drugs/diclofenac - https://interaction-checker.com/drugs/diclofenac-and-misoprostol - https://interaction-checker.com/drugs/dicloxacillin - https://interaction-checker.com/drugs/dicyclomine - https://interaction-checker.com/drugs/diethylpropion - https://interaction-checker.com/drugs/difenoxin-and-atropine - https://interaction-checker.com/drugs/diflunisal - https://interaction-checker.com/drugs/digoxin - https://interaction-checker.com/drugs/dihydroergotamine - https://interaction-checker.com/drugs/diltiazem - https://interaction-checker.com/drugs/dimenhydrinate - https://interaction-checker.com/drugs/dimethyl-fumarate - https://interaction-checker.com/drugs/dinoprostone - https://interaction-checker.com/drugs/diphenhydramine - https://interaction-checker.com/drugs/diphenoxylate-and-atropine - https://interaction-checker.com/drugs/dipyridamole - https://interaction-checker.com/drugs/disopyramide - https://interaction-checker.com/drugs/disulfiram - https://interaction-checker.com/drugs/divalproex - https://interaction-checker.com/drugs/dobutamine - https://interaction-checker.com/drugs/docetaxel - 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https://interaction-checker.com/drugs/capecitabine/pills - https://interaction-checker.com/drugs/captopril/pills - https://interaction-checker.com/drugs/carbamazepine/pills - https://interaction-checker.com/drugs/carbidopa-and-levodopa/pills - https://interaction-checker.com/drugs/cariprazine/pills - https://interaction-checker.com/drugs/carisoprodol/pills - https://interaction-checker.com/drugs/carvedilol/pills - https://interaction-checker.com/drugs/cefadroxil/pills - https://interaction-checker.com/drugs/cefdinir/pills - https://interaction-checker.com/drugs/cefixime/pills - https://interaction-checker.com/drugs/cefpodoxime/pills - https://interaction-checker.com/drugs/cefuroxime/pills - https://interaction-checker.com/drugs/celecoxib/pills - https://interaction-checker.com/drugs/cenobamate/pills - https://interaction-checker.com/drugs/cephalexin/pills - https://interaction-checker.com/drugs/cetirizine/pills - https://interaction-checker.com/drugs/cevimeline/pills - https://interaction-checker.com/drugs/chlordiazepoxide/pills - https://interaction-checker.com/drugs/chloroquine/pills - https://interaction-checker.com/drugs/chlorpheniramine/pills - https://interaction-checker.com/drugs/chlorpromazine/pills - https://interaction-checker.com/drugs/chlorthalidone/pills - https://interaction-checker.com/drugs/cilostazol/pills - https://interaction-checker.com/drugs/cimetidine/pills - https://interaction-checker.com/drugs/ciprofloxacin/pills - https://interaction-checker.com/drugs/citalopram/pills - https://interaction-checker.com/drugs/clarithromycin/pills - https://interaction-checker.com/drugs/clindamycin/pills - https://interaction-checker.com/drugs/clobazam/pills - https://interaction-checker.com/drugs/clomiphene/pills - https://interaction-checker.com/drugs/clonazepam/pills - https://interaction-checker.com/drugs/clonidine/pills - https://interaction-checker.com/drugs/clopidogrel/pills - https://interaction-checker.com/drugs/clozapine/pills - https://interaction-checker.com/drugs/acetaminophen/facts - https://interaction-checker.com/drugs/alprazolam/facts - https://interaction-checker.com/drugs/amlodipine/facts - https://interaction-checker.com/drugs/amphetamine-and-dextroamphetamine/facts - https://interaction-checker.com/drugs/atorvastatin/facts - https://interaction-checker.com/drugs/escitalopram/facts - https://interaction-checker.com/drugs/gabapentin/facts - https://interaction-checker.com/drugs/ibuprofen/facts - https://interaction-checker.com/drugs/levothyroxine/facts - https://interaction-checker.com/drugs/lisinopril/facts - https://interaction-checker.com/drugs/losartan/facts - https://interaction-checker.com/drugs/metformin/facts - https://interaction-checker.com/drugs/metoprolol/facts - https://interaction-checker.com/drugs/omeprazole/facts - https://interaction-checker.com/drugs/prednisone/facts - https://interaction-checker.com/drugs/semaglutide/facts - https://interaction-checker.com/drugs/sertraline/facts - https://interaction-checker.com/drugs/tramadol/facts - https://interaction-checker.com/drugs/trazodone/facts - https://interaction-checker.com/drugs/zolpidem/facts - https://interaction-checker.com/supplements/alcohol - https://interaction-checker.com/supplements/caffeine - https://interaction-checker.com/supplements/cranberry - https://interaction-checker.com/supplements/dairy - https://interaction-checker.com/supplements/grapefruit - https://interaction-checker.com/supplements/green-tea - https://interaction-checker.com/supplements/coq10 - https://interaction-checker.com/supplements/echinacea - https://interaction-checker.com/supplements/fish-oil - https://interaction-checker.com/supplements/garlic - https://interaction-checker.com/supplements/ginkgo - https://interaction-checker.com/supplements/ginseng - https://interaction-checker.com/supplements/glucosamine - https://interaction-checker.com/supplements/melatonin - https://interaction-checker.com/supplements/milk-thistle - https://interaction-checker.com/supplements/st-johns-wort - https://interaction-checker.com/supplements/turmeric - https://interaction-checker.com/supplements/antacids - https://interaction-checker.com/supplements/cannabis - https://interaction-checker.com/supplements/cbd - https://interaction-checker.com/supplements/tobacco - https://interaction-checker.com/supplements/calcium - https://interaction-checker.com/supplements/folic-acid - https://interaction-checker.com/supplements/iron - https://interaction-checker.com/supplements/magnesium - https://interaction-checker.com/supplements/potassium - https://interaction-checker.com/supplements/vitamin-b12 - https://interaction-checker.com/supplements/vitamin-d - https://interaction-checker.com/supplements/vitamin-e - https://interaction-checker.com/supplements/vitamin-k - https://interaction-checker.com/supplements/zinc ## Machine-readable data - https://interaction-checker.com/api/v1 (free JSON API; see /api and /api/v1/openapi.json) - https://interaction-checker.com/mcp (MCP server for AI assistants; setup at https://interaction-checker.com/mcp-server) - https://interaction-checker.com/data/entities.json (all entities: id, name, brands, aliases, classes) - https://interaction-checker.com/data/l/.json (one entity: label sections, terms, source; CORS enabled) - https://interaction-checker.com/sitemap.xml (every page)