What Schedule Is Diltiazem?
Diltiazem scheduling and classification across Australia, United States, and international jurisdictions. Also known as Cardizem CD, Vasocardol CD, Diltiazem Sandoz CD, Cardizem.
Diltiazem (Cardizem CD) is classified as S4 (Prescription Only Medicine - requires a valid prescription from an authorised prescriber) under the Therapeutic Goods Administration (TGA) in Australia. It is FDA approved in the United States.
Key Takeaways
- Australia (TGA): S4 - Prescription Only Medicine - requires a valid prescription from an authorised prescriber
- United States (FDA): Approved (Rx only)
- Risk level: Low (1 points)
- PBS listed: Subsidised under the Pharmaceutical Benefits Scheme in Australia
Scheduling by Jurisdiction
| Jurisdiction | Regulatory Body | Classification | Status |
|---|---|---|---|
| Australia | TGA (Therapeutic Goods Administration) | S4 | PBS listed |
| United States | FDA / DEA | Rx only (not DEA scheduled) | FDA approved |
What S4 Means for Diltiazem
Diltiazem is classified as S4 under the TGA Standard for the Uniform Scheduling of Medicines and Poisons (SUSMP). Prescription Only Medicine - requires a valid prescription from an authorised prescriber.
Schedule 4 Prescribing Requirements
- Prescribing: Requires a valid prescription from a registered medical practitioner, dentist, or authorised prescriber.
- Dispensing: Must be dispensed by a pharmacist against a valid prescription.
- Repeats: Repeat prescriptions are permitted as specified by the prescriber.
Claims and Workers Compensation Implications
When Diltiazem (S4) appears on a claimant's medication list, the scheduling classification affects how claims professionals should assess and manage the claim.
As a Schedule 4 prescription medicine, claims professionals should verify that Diltiazem is being prescribed for the compensable injury and review duration against clinical guidelines.
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Related Resources
Medical Disclaimer: This content is for informational purposes for claims professionals and care workers. It is not medical advice. Always consult a qualified healthcare professional for clinical decisions. Drug information is sourced from TGA, FDA, MHRA, PBS, NICE, and CDC databases and may not reflect the latest updates. AllMeds does not replace clinical judgement.