AI for Pharmacies: Drug Interactions and More

A daily risk for Quebec pharmacies

In Quebec, pharmacists process an average of 300-400 prescriptions per day in a neighborhood pharmacy. Each represents a potential risk of dangerous drug interactions, especially in elderly patients taking 5 or 10 different medications.

The numbers are concerning:

15-20% of hospitalizations of elderly people in Quebec are related to drug interactions or medication errors
30-40 minutes can be lost per day manually checking interactions across multiple databases
1 error per 50 prescriptions goes undetected with manual verification (according to a study by the Ordre des pharmaciens du Québec)

AI to detect interactions in seconds

Modern AI systems scan:

Drug-drug interactions (the pharmacist already does this, but AI accelerates it)
Drug-food interactions (grapefruit + statins, alcohol + antibiotics, etc.)
Drug-disease interactions (NSAIDs with renal insufficiency, antidepressants with glaucoma, etc.)
Inappropriate dosage for the patient’s age, weight, or renal function
Therapeutic duplications (two medications for the same problem)
Absolute contraindications (known allergy, pregnancy, etc.)

Real case: Pharmacy in Quebec City, 12 technicians

A community pharmacy in Quebec City implemented AI for prescription verification. After 6 months:

+45 prescriptions/day processed (same staff, but more efficient)
8 serious interactions avoided (one of which would have sent a patient to hospital)
12 dosage errors detected (physician had forgotten to adjust for renal insufficiency)
3 therapeutic duplicates revealed (patient buying the same medication at two pharmacies)
-6 minutes per prescription (verification automation)
+15% patient satisfaction (less waiting, more time for counseling)

RAMQ compliance and legality in Quebec

Pharmacists remain responsible for verification. AI is an assistive tool, compliant with:

The Ordre des pharmaciens du Québec
Law 25 (patient data hosted in Canada)
RAMQ standards for reimbursement

AI improves the pharmacist’s efficiency — it doesn’t replace them.

Economic impact

For a pharmacy processing 10,000 prescriptions/month (average Quebec pharmacy):

Current cost of manual verifications: ~$8,000/month (technician/pharmacist time)
Cost of an AI solution: ~$1,500-$2,000/month
Savings: ~$5,500/month
Added value: hospitalization prevention, client satisfaction, increased compliance