S3 | Pharmacy Medicine

What Schedule Is DEXTROMETHORPHAN HBR, DOXYLAMINE SUCCINATE?

DEXTROMETHORPHAN HBR, DOXYLAMINE SUCCINATE scheduling and classification across Australia, United States, and international jurisdictions. Also known as Robitussin Honey Maximum Strength Nighttime Cough DM.

S3 in Australia Source: FDA Updated April 2026

DEXTROMETHORPHAN HBR, DOXYLAMINE SUCCINATE (Robitussin Honey Maximum Strength Nighttime Cough DM) is classified as S3 (Pharmacist Only Medicine - available without a prescription but requires pharmacist involvement and may require consultation) under the Therapeutic Goods Administration (TGA) in Australia. It is FDA approved in the United States.

Key Takeaways

  • Australia (TGA): S3 - Pharmacist Only Medicine - available without a prescription but requires pharmacist involvement and may require consultation
  • United States (FDA): Approved (Rx only)
  • Risk level: Moderate (3 points)

Scheduling by Jurisdiction

Jurisdiction Regulatory Body Classification Status
Australia TGA (Therapeutic Goods Administration) S3 Not PBS listed
United States FDA / DEA Rx only (not DEA scheduled) FDA approved

What S3 Means for DEXTROMETHORPHAN HBR, DOXYLAMINE SUCCINATE

DEXTROMETHORPHAN HBR, DOXYLAMINE SUCCINATE is classified as S3 under the TGA Standard for the Uniform Scheduling of Medicines and Poisons (SUSMP). Pharmacist Only Medicine - available without a prescription but requires pharmacist involvement and may require consultation.

Claims and Workers Compensation Implications

When DEXTROMETHORPHAN HBR, DOXYLAMINE SUCCINATE (S3) appears on a claimant's medication list, the scheduling classification affects how claims professionals should assess and manage the claim.

Check this medication against your full medication list

Check DEXTROMETHORPHAN HBR, DOXYLAMINE SUCCINATE scheduling, interactions, and compliance across your claimant's full medication list.

Allmeds AI Pharmacist scans interactions, schedules, and risk flags across your entire medication profile in minutes. Free for individuals; team plans for case managers, insurers, and schemes.

Related Resources

Important: This page is general health information, not personal medical advice. If you have questions about your medication — including starting it, stopping it, changing the dose, or combining it with something else — speak with your doctor or pharmacist. For an emergency or suspected overdose, call your local emergency number or poison information service immediately. Information is drawn from regulator and clinical guideline sources (TGA, FDA, MHRA, NICE, PBS, CDC); see our methodology for details.