This is a historical report — it no longer reflects this drug's current status. Current status: Anticipated Shortage. View this drug's full profile page →
DIPHENIST
OMEGA LABORATORIES LIMITED
View this drug's full profile page →
This is a national manufacturer shortage report. It does not confirm whether the product is unavailable at your local pharmacy — call ahead or ask your pharmacist.
Quick answers
Is there a shortage of DIPHENIST in Canada?
A shortage of DIPHENIST 50MG is expected: the manufacturer reported it to Health Canada as an anticipated shortage (last updated September 23, 2026), but it has not started yet.
Why is DIPHENIST not available?
The reason the manufacturer reported: Disruption of the manufacture of the drug.
When will DIPHENIST be available again?
The manufacturer's estimated resolution date is January 31, 2027. This is an estimate and can change; follow this page to get an email when the status changes.
What this means
Does this mean the shortage is completely over everywhere?
It means this specific report has been marked resolved or was avoided — but some individual pharmacies may still take time to restock.
What should I do?
If your pharmacy still doesn't have it, check with them directly — supply is expected to be normalizing.
DIN
02219336
Strength
50MG
Dosage Form
LIQUID
Route
INTRAVENOUS INTRAMUSCULAR
Active Ingredient
DIPHENHYDRAMINE HYDROCHLORIDE
Tier
Unrated
Last Updated
2025-07-09
Reason for Shortage
Disruption of the manufacture of the drug.
Past Reports for This Drug
DIPHENIST has 2 shortage/discontinuation reports on file — this is one of them.
Other Products from OMEGA LABORATORIES LIMITED
Other Health Canada-approved products made by the same manufacturer — not necessarily related to this shortage, and not necessarily in shortage themselves.
9MG · DIN 02150204
250MG · DIN 02486717
25MG · DIN 00582662
50MG · DIN 00582654
DIN 02251477
20% · DIN 00658413
0.5% · DIN 01936441
1MG · DIN 02238903
7.5MG · DIN 02512424
20MG · DIN 02526778
20MG · DIN 02526751
222MG · DIN 02056429