Isoniazid 100 mg with rifampicin 150 mg (Rifinah 100/150) tablets: Supply issue

Alternative products

Alternative listed 1 December 2025

The alternative is supplied by Link Pharmaceuticals. It should be available to order mid-to-late December 2025. Note that it a capsule, rather than a tablet. It is not Medsafe approved and as such needs to be prescribed and dispensed in line with section 29 of the Medicines Act.

• Presentation: Cap Isoniazid 100 mg with rifampicin 150 mg
• Brand: Rifamazid
• Pharmacode: 2718243
• Subsidy: $199.00
• Measure / Qty: per 100
• Section 29 Wastage claimable

Rifamazid labels and packaging are in Polish. The supplier will include an English language Consumer Information Sheet in each box.

When combined tablet is not available

Where the combined formulation not available the single chemical tablets can be used:

• Isoniazid Tab 100 mg (Noumed Isoniazid) Pharmacode 2695901 and
• Rifampicin Cap 150 mg (Rifadin Sanofi) Pharmacode 251186

We understand that this is not ideal and people needing to take additional tablets can cause difficulties. However, this approach means people can continue to access treatment.

Schedule listing for Noumed Isoniazid(external link)

Schedule listing for Rifampicin Sanofi(external link) 

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. 

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)

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