Active substance
Primidone
- SFDA 1
- US FDA 12
- Health Canada 2
- US price lines 3
- NHS prices 3
SFDA Saudi Arabia — SFDA human drug list
| Trade name | Strength | Form · route | Pack | Public price | Type | Company | Status |
|---|---|---|---|---|---|---|---|
| MYSOLINE SYRUP | 50 mg/ml | Syrup · Oral use | 1 Bottle | SAR 8.05 | NCE · Prescription | AstraZeneca | Withdrawn by MAH · Not Marketed |
US FDA United States — FDA approvals (Drugs@FDA)
| Product | Strength | Form · route | Applicant | Status | First approved |
|---|---|---|---|---|---|
| MYSOLINE | 250MG; 50MG | tablet · oral | VALEANT | Prescription | 8 Mar 1954 |
| PRIMIDONE | 250MG; 50MG | tablet · oral | LANNETT | Prescription | 1 Dec 1978 |
| PRIMIDONE | 250MG | tablet · oral | WATSON LABS | Prescription | 7 Feb 1979 |
| PRIMIDONE | 50MG; 250MG | tablet · oral | OXFORD PHARMS | Prescription | 24 Feb 2005 |
| PRIMIDONE | 50MG; 250MG | tablet · oral | TP ANDA HOLDINGS | Prescription | 29 Sep 2005 |
| PRIMIDONE | 50MG; 250MG | tablet · oral | AMNEAL PHARM | Prescription | 23 Apr 2008 |
| PRIMIDONE | 50MG; 250MG; 125MG | tablet · oral | RUBICON RESEARCH | Prescription | 28 Jun 2022 |
| PRIMIDONE | 50MG; 250MG | tablet · oral | CARNEGIE | Prescription | 23 Jan 2024 |
| PRIMIDONE | 50MG; 250MG | tablet · oral | HIKMA INTL PHARMS | Discontinued | 27 Jul 2006 |
| PRIMIDONE | 50MG; 250MG | tablet · oral | IMPAX LABS | Discontinued | 12 Feb 2008 |
| PRIMIDONE | 50MG; 250MG | tablet · oral | CHARTWELL RX | Discontinued | 3 Oct 2008 |
| PRIMIDONE | 250MG | tablet · oral | WATSON LABS | Discontinued |
Canada Canada — marketed products (Health Canada)
Prices — United States and England
| Source | Product as listed | Price | Unit / pack | Date |
|---|---|---|---|---|
| US NADAC | PRIMIDONE 125 MG TABLET | $1.37851 | per EA | 23 Sep 2026 |
| US NADAC | PRIMIDONE 250 MG TABLET | $0.22758 | per EA | 23 Sep 2026 |
| US NADAC | PRIMIDONE 50 MG TABLET | $0.09137 | per EA | 23 Sep 2026 |
| NHS Drug Tariff | Primidone 125mg tablets | £65.00 | 50 tablet | 1 Oct 2026 |
| NHS Drug Tariff | Primidone 250mg tablets | £42.43 | 100 tablet | 1 Oct 2026 |
| NHS Drug Tariff | Primidone 50mg tablets | £118.71 | 100 tablet | 1 Oct 2026 |
NADAC: average price US retail pharmacies pay to buy the medicine. NHS Drug Tariff Part VIIIA: basic price reimbursed to pharmacies in England and Wales.
Values as published by each source: SFDA human drug list (4-2026, as published by the Council of Health Insurance; indications from the CHI Daman Drug Formulary), Drugs@FDA, EMA medicines data, Health Canada Drug Product Database (Open Government Licence – Canada), CMS NADAC, NHS Drug Tariff Part VIIIA (NHSBSA Copyright, Open Government Licence v3.0), WHO Model List of Essential Medicines (CC BY 3.0 IGO; regrouped by active substance, not created by WHO), EMA PRAC, US FDA safety-related labeling changes and MHRA Drug Safety Update (Open Government Licence v3.0). Sources and reuse. Not a substitute for the official registers or the product information.