CounterScript - Drug Price Benchmarks

Looks up what US pharmacies actually pay to acquire a drug (the CMS NADAC benchmark, per unit, with its date), a fair cash-price estimate range, FDA generic equivalents, and Medicare negotiated prices where they apply. The input is a drug name with optional strength and form. result_type is one of three values. match: one drug, with prices, provenance and honesty notes; a brand-name drug with no generic alternatives listed also carries generic_equivalence, a dated statement of what the FDA Orange Book shows for it. A brand-name match can also carry cms_generic_price, CMS's NADAC figure for the corresponding generic drug, with its effective date, a fair cash estimate where a fill quantity applies, and the generic's name when exactly one generic in the index has that price, strength and ingredient. A biologic that the FDA Purple Book lists biosimilars to also carries biosimilars (each with proprietary and proper names, interchangeable, marketing_status, file_month, and a NADAC price where one is indexed) and biosimilars_statement; a biosimilar carries reference_product, with the same kinds of fields and a statement. candidates: the query fits several drugs. Up to 12 are listed (generic drugs first, then alphabetical), each with its description and price hint. candidates_total gives how many drugs matched; when that is more than 12, message says the list was cut, and adding a strength or form narrows it. A query equal to one candidate's description returns that drug as a match. no_match: the index has no drug matching the query; this does not mean the drug lacks a fair price, since NADAC covers only drugs with enough pharmacy survey data. did_you_mean, where present, lists drug names to search next, and did_you_mean_basis gives the reason: spelling (names spelled like the query; for a trade name that is its only active ingredient plus more words, such as theophylline-sr, that ingredient) or same_ingredient (the index has no drug under the ingredient name in the query,