S3 | Pharmacy Medicine

What Schedule Is GUAIFENESIN, PSEUDOEPHEDRINE HYDROCHLORIDE?

GUAIFENESIN, PSEUDOEPHEDRINE HYDROCHLORIDE scheduling and classification across Australia, United States, and international jurisdictions. Also known as Leader Mucus Relief D.

S3 in Australia Source: FDA Updated April 2026

GUAIFENESIN, PSEUDOEPHEDRINE HYDROCHLORIDE (Leader Mucus Relief D) 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: Low (1 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 GUAIFENESIN, PSEUDOEPHEDRINE HYDROCHLORIDE

GUAIFENESIN, PSEUDOEPHEDRINE HYDROCHLORIDE 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 GUAIFENESIN, PSEUDOEPHEDRINE HYDROCHLORIDE (S3) appears on a claimant's medication list, the scheduling classification affects how claims professionals should assess and manage the claim.

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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.