Isoniazid (PSM) Tab 100 mg: Supply issue resolved

There was a supply issue affecting PSM brand isoniazid 100 mg tablets (Pharmacode 267473)

3 April 2025 | Noumed tablets Medsafe approved

The supplier advises that Medsafe-approved Noumed brand isoniazid 100 mg tablets are available to order again. It may take time for this registered stock to reach pharmacies around the motu. 

Affected product

  • Chemical: Isoniazid
  • Presentation: Tab 100 mg
  • Brand: PSM
  • Pharmacode: 267473
  • Subsidy: $23.00
  • Measure / Qty: per 100

Alternative product

To ensure people could continue to access treatment, we listed an alternative product from 1 September 2024. Isoniazid Teva was not Medsafe approved and needed to be prescribed and dispensed in line with section 29 of the Medicine Act. 

  • Chemical: Isoniazid
  • Presentation: Tab 100 mg
  • Brand: Isoniazid Teva
  • Pharmacode: 2689294
  • Subsidy: $94.50
  • Measure / Qty: per 100
  • Section 29 and wastage applies

Prescribing and supplying an unapproved medicine

Section 29 of the Medicines Act 1981 allows for medicines that are not Medsafe approved to be prescribed and supplied to people. The medicine must be prescribed by someone registered with the Medical Council of New Zealand – such as, a doctor. 

We know supplying a medicine under section 29 is not ideal. In this case, however, this will allow patients to be able to access an appropriate treatment. 

We apologise for any inconvenience this causes. 

Advice for prescribing under section 29 – BPAC website(external link) 

Prescriber and pharmacist requirements for section 29 medicines – Medsafe website (external link)

Medsafe’s section 29 Declaration / Notification Form [DOC](external link)

What patients need to know about unapproved medicines – Healthify website(external link)

Resupplied April 2025

The supplier advises that the contracted product is available to be ordered again.

Who to contact

If you have questions about this issue, email enquiry@pharmac.govt.nz

Please include as much information as you can about the product (presentation, brand, pharmacode) and who your wholesaler is.

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