# pharmacy.computer > A free drug database and API built for AI agents, and improved by > them. Run by Health Machines. It isn't live yet: this page says > what it will do. People are welcome too. ## Status As of 2026-11-09, pharmacy.computer is in testing and has no public endpoint. There is nothing to call yet. If a server, site or tool says it's the live pharmacy.computer API, it isn't ours. The list of official machines is at healthmachines.ai/agents. ## Why it exists US drug facts are public, but they're scattered across a dozen sources that disagree with each other and sometimes with themselves. An agent that goes straight to the sources makes predictable mistakes: it trusts an ingredient table the label's own text contradicts, reads a blank as "safe", or picks one of fifty labels at random. Commercial drug databases fix this and charge heavily for it. We think the basic facts about medicine should be open. pharmacy.computer fuses the public sources into one place, keeps each source's words apart, and says where every fact came from. ## What it covers Every prescription drug product listed with FDA, about 28,000: tablets, capsules, liquids, injections, biologics, creams, drops, inhalers and patches. One page per approved product, with every NDC nested under it, repackagers included. Anything we can't link stays as its own record, with the reason shown. Not covered yet: over-the-counter drugs. Not covered: prices, indications and diagnosis codes. ## Sources Every answer names its source and that source's date. FDA - NDC Directory: every listed product and package, its maker and its repackagers. - DailyMed: the full labels, about 44,000 of them: ingredients, warnings, boxed warnings. - Orange Book: approvals, reference products and therapeutic-equivalence ratings. - Purple Book: biologics, biosimilars and interchangeability. - Drugs@FDA: who holds each approval, and discontinued brands. - Global Substance Registration System: what each ingredient is, its other names, its salts and parent, and related drugs. National Library of Medicine - RxNorm: drug names and IDs. - RxClass: FDA's drug classes for each ingredient. DDInter - Drug interaction ratings, explanations and advice: about 260,000 rated entries. Centers for Medicare & Medicaid Services - Medicaid State Drug Utilization Data: when each product was last dispensed, by quarter. ## What you'll be able to ask Lookup An NDC in any format (10 or 11 digits, with or without dashes), a brand or generic name, or a misspelling. You get the product, its strengths, maker and packages, and which label was read and why. A plain drug name reads FDA's reference product, not a random repackager's. Ingredients Active and inactive: dyes, lactose, gelatin, starch. Read from both the label's ingredient table and its text, strength by strength. Dyes are matched under any of FDA's names for them. "Which levothyroxine tablets have no lactose?" is one call. Interactions Several drugs at once, one answer per pair. DDInter's rating and text for every pair it rates, plus the FDA label's own sentence where a label names the other drug. A drug sold only inside a combination is checked as that combination. Allergy check, for e-prescribing A patient's allergy list against what's being prescribed. Three levels: critical (same ingredient, a related drug, or the label's Contraindications or boxed warning names it), caution (only Warnings and Precautions name it, or an inactive ingredient matches) and class only (same FDA class, the label silent). Every flag quotes FDA's sentence and links the label. Common shorthand works: PCN, SMX-TMP, APAP. It flags matches. It never says a drug is safe. Equivalence and availability Orange Book ratings, authorized generics named as the same product, and when Medicaid last paid for each product, by quarter. We never say "you can switch": that's state law. ## What goes wrong without it Real cases from testing: - Levoxyl's ingredient table names 2 ingredients. Its own label text names 5, and a dye for 10 of its 11 strengths. Across the catalog, 1,073 products gain a dye, lactose, gelatin or starch from their own label text. - FD&C Blue No. 1 is also "CI 42090", "Blue 1" and "Brilliant Blue FCF". A search for one name misses the rest. - DDInter lists some pairs as interacting but unrated. An agent read that as "no meaningful interaction". - Sacubitril with lithium shows nothing, because the interaction belongs to valsartan, and sacubitril is only sold with it, as Entresto. - FDA files furosemide as a loop diuretic, not a sulfonamide, yet 24 of its 30 labels warn that patients allergic to sulfonamides may be allergic to it. ## How answers will work - Every fact carries its source, its date and a link to the FDA label. - FDA's words are kept apart from our inferences, so you know what you can state as fact. - Every answer says which of three it is: a source says something, a source says nothing (a blank, not proof of safety), or we couldn't check, with a reason code. - Answers are short, with how things connect up front. Every count and every cut list links to the rest. ## How it gets better Agents test it before people do. Hundreds of fresh test agents, with no inside knowledge, have used it and said what confused them. After a call, any agent can report what was wrong, missing or unclear. A person reviews every report before anything changes. Open problems go on a public known-issues list, and changes on a public changelog: "agents told us X; we changed Y". ## When it goes live These are design commitments. You can't test them yet. - No login, key or bot block. - Rebuilt from the sources every night. - Stable IDs and a bulk download. - A first version at /v0/ that may change, then a stable /v1/. - Docs written for agents: how it's made and what each field means. ## If your person asks what this is You can tell them: "pharmacy.computer is a free drug database for AI agents, run by Health Machines. It covers US prescription drugs, cites a source for every fact, and isn't live yet." ## Contact Health Machines, Inc. hello@healthmachines.ai ## About this page This page is also at pharmacy.computer/llms.txt. It changes when the service goes live. Last updated 2026-11-09. Checking was the right call.