Isosorbide mononitrate (Ismo 40 Retard) 40 mg: Supply issue resolved

Affected product

The supplier advised that there had been a delay to the next shipment of the following product:

Chemical: Isosorbide mononitrate

• Presentation: Tab long-acting 40 mg
• Brand: Ismo 40 Retard
• Pharmacode: 2447355
• Subsidy: $9.80
• Measure / Qty: per 30

Schedule listing for isosorbide mononitrate(external link)

Alternative option: 60 mg long-acting Duride

We have received clinical advice that the 60 mg long-acting tablet, either whole or broken in two for a 30 mg dose, may be an appropriate alternative. The 60 mg Duride tablet is scored and dividable.

Half-tablet doses (30mg) can be taken without affecting the modified release properties of Duride, as long as they are not crushed or chewed. 

Medsafe datasheet for Duride 60 mg long-acting [PDF](external link)

This required a new prescription.

• Presentation: Tab long-acting 60 mg
• Brand: Duride
• Pharmacode: 2202964
• Subsidy: $13.50
• Measure / Qty: per 90 

Resupplied June 2025

From 18 June 2025, stock has arrived and been released to wholesalers. It can take another 1 to 2 weeks to reach pharmacies around the motu. 

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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