Disopyramide (Rythmodan): new look pack

New look Active

Your medicine will have a new look packaging, but it is the same medicine made by the same manufacturer.

What's changing

From October 2025, you can expect the packaging for your Rythmodan to change. It is going from packaging made for Canada (Cheplapharm) to packaging made for the UK (Neon).

It is the same medicine inside, the capsules are the same colour and have all the same ingredients, both active and inactive. 

Two boxes of Rythmodan, both are mostly white with black lettering. The strength is written orange lettering. The UK box has Neon Healthcare as the supplier, the Canadian has Cheplapharma.
Brand Description Pharmacode Subsidy Quantity
Rythmodan - Cheplafarm  Canadian (old) packaging 2658062 $55.90 per 84
Rythmodan Neon UK (new) packaging 2713616 $55.90 per 84

Neither product is Medsafe approved

Neither the UK nor the Canadian packaged product is approved by Medsafe for use in New Zealand. Both products are approved for use in their home country.

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 people to continue to access an appropriate treatment. 

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)

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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