Case study 06 · Pharmacy

PharmacyManagement System

Medication management for a hospital pharmacy, with the safety checks built into the workflow itself: from prescribing, through pharmacist verification and dispensing, to administration at the bedside.

Role: Solution architect & lead engineer
Client: Private hospital, Kurdistan Region of Iraq
Status: Going live
Stack: Go · PostgreSQL · Lit · RxNorm

At a glance

8,443: drug concepts in the catalogue
8,298: of them RxNorm-coded
2: signatures required for controlled drugs
FEFO: first-expiry, first-out dispensing

What it covers

Prescribing safety

checks at the point of order

Drug–drug and drug–allergy checks run when the prescription is written, not after.
A formulary gate: non-formulary drugs need an override, and every override is audited.
Coded catalogue: 8,443 drug concepts, 8,298 of them RxNorm-coded, brought in through the CIEL dictionary's crosswalks.

Verification & dispensing

the pharmacy bench

Pharmacist verification before anything is dispensed.
Controlled drugs require a second signature.
FEFO dispensing: stock is always taken from the batch that expires first.

Administration

closing the loop at the bedside

Medication administration record (MAR) with a dose engine that creates one record per due dose, so a missed dose always leaves a record.
Atomic administration: a dose can never be charted twice.

Stock & finance

every movement accounted for

One stock ledger for every movement, with earliest-expiry-first lot consumption.
Department stock lockers with approval.
Own books: the pharmacy is a business unit with its own accounts; POS sales and voids post automatically, and cost of goods sold uses the cost of the batches actually dispensed.

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