Published: 17th April, 2025
Contents
Welcome to the latest Issue of Best Practice Bulletin, coming to you one day early this week as we observe Good Friday tomorrow. Today’s edition has been kept brief and is focused on recently published resources on our website, and timely news items for primary care. We wish you a safe and happy Easter, and for those fortunate to have a break from work, a chance to relax and spend time with whānau and friends over the long weekend.
Latest resources from bpacnz

The first quarter of 2025 has been a busy time in the bpacnz Publications office, with several articles published on a range of topics, including heart failure, stable angina, fungal nail infections and vitamin D supplementation. We have also developed numerous CPD resources, e.g. a case study quiz on atrial fibrillation, a clinical audit on optimising treatment in patients with heart failure, and peer group discussions on Recovery at Work and generalised anxiety disorder.
View our resources, here; you can also browse by category and year. Quizzes can be found here.
Alert Communication: Carbamazepine during pregnancy and neonatal growth risk
Medsafe has issued an Alert Communication on the use of carbamazepine during pregnancy. Evidence from a large observational study from Nordic countries showed a potential increased risk of infants being born small for gestational age or with microcephaly following prenatal carbamazepine exposure. The data sheet has been updated to reflect this. Congenital malformations and neurodevelopmental disorders have previously been reported in children following prenatal exposure to carbamazepine.
Medsafe is advising healthcare professionals to inform patients who are taking carbamazepine about these potential risks, and to switch those who are planning pregnancy to an alternative treatment. Consider offering a pregnancy test before prescribing carbamazepine, as appropriate. Adequate contraception is required while taking carbamazepine and for at least 14 days after the final dose. Only prescribe carbamazepine to patients who are pregnant if the benefits of treatment outweigh the potential risks; patients who become pregnant while taking it should be referred for specialist advice.
Medsafe Monitoring Communication update: direct-acting oral anticoagulants (DOACS) and mood changes. In 2024, Medsafe asked clinicians to be alert to potential mood changes in patients taking DOACS and to report any suspected cases to CARM; this was covered in Bulletin 105. The reporting period has now ended and CARM received two reports associated with rivaroxaban and dabigatran (between 7th August, 2024 – 28th February, 2025). On balance, Medsafe advises that the benefit/risk for oral anticoagulants remains positive, and no further action is required at this stage.
Medicine news: Ticagrelor, oxycodone, fentanyl, isosorbide, loratadine, quetiapine, ultraproct
The following news relating to medicine supply, of particular interest to primary care, has recently been announced. These items are selected based on their relevance to primary care and where issues for patients are anticipated, e.g. no alternative medicine available or changing to the alternative presents issues. Information about medicine supply is available in the New Zealand Formulary at the top of the individual monograph for any affected medicine and summarised here.
Pharmac has advised that stock of ticagrelor 90 mg tablets may be limited due to an unexpected shipping delay. There is currently no funded alternative product available. Stock of ticagrelor may vary between pharmacies; patients should call ahead before collecting their prescription to ensure their usual pharmacy has stock. The next shipment is expected this week, but stock may take additional time to reach pharmacies.
There is a supply issue affecting stock of 10 mg and 20 mg oxycodone immediate-release tablets. Oxycodone 5 mg immediate-release tablets were previously affected by a supply issue (as reported in Bulletin 118), but stock has now arrived. Re-supply of the 10 mg and 20 mg immediate-release tablets is expected in May. Pharmac advises that 5 mg tablets and 1 mg/mL oral liquid are suitable alternatives, however, a new prescription will be required for these options. Otherwise, clinicians could consider prescribing an alternative analgesic.
Fentanyl 12.5 microgram patch packaging change
From 1st May, 2025, the supplier of fentanyl patches, Sandoz, is changing how the strength of the 12.5 microgram fentanyl patch is written on the packaging. The new packaging will read as 12 mcg, instead of 12.5 mcg, however, the dose remains the same. Changing how the dose is displayed on the packaging is accepted practice and is intended to reduce prescribing and dispensing errors (e.g. 12.5 micrograms and 125 micrograms). The old packaging will be delisted from the Pharmaceutical Schedule on 1st November, 2025. A patient information sheet is available here.
Isosorbide mononitrate 40 mg tablet supply issue
Stock of isosorbide mononitrate 40 mg modified-release tablets (Ismo 40 Retard) is limited, due to shipping delays. Re-supply is expected by June. Pharmac advises that 60 mg modified-release tablets (Duride) may be a suitable alternative (or half a tablet for a ~30 mg dose), however, a new prescription will be required. The Duride data sheet states that the tablet can be halved without affecting the modified-release properties if the tablet is not crushed or chewed.
Upcoming supply issue affecting loratadine
Pharmac has announced that loratadine (Lorafix) 10 mg tablets will go out of stock because recent batches have been rejected due to an issue affecting tablet hardness. Re-supply is expected by August. Cetirizine hydrochloride may be a suitable funded alternative, however, a new prescription will be required. A patient information leaflet is available here.
Quetiapine supply update
Due to supply issues affecting quetiapine 25 mg tablets (Quetapel), an alternative brand (Quetiapine Viatris; Section 29) was listed on the Pharmaceutical Schedule from 1st April (as reported in Bulletin 120). Pharmac initially reported that the alternative brand was manufactured in the same factory as the original funded brand, but has now advised that this information was incorrect, and that it is made at a different factory. Therefore, both the packaging and tablets will look different.
Pharmacists should discuss with patients that the appearance of the blister pack of Quetiapine Viatris and tablets differs from their usual brand. The blister packaging is a different shape and colour and contains Japanese writing, and the tablets are a different colour and have writing on them. A patient information handout is available here.
Ultraproct out of stock from May
Pharmac has advised of an upcoming supply issue that will affect stock of Ultraproct (fluocortolone caproate with fluocortolone pivalate and cinchocaine) suppositories and ointment due to manufacturing delays. It is expected that Ultraproct suppositories will be out of stock from May, and the ointment out of stock from September. The supply issue is likely to continue until the end of 2025. An alternative funded product, Proctosedyl (hydrocortisone with cinchocaine) is available in both formulations, however, a new prescription will be required as the active ingredient is different. A generic patient information handout is available, here.
Proposal to make it easier to access budesonide with formoterol inhalers
Pharmac is seeking feedback on a proposal to allow three months’ supply of some budesonide with formoterol inhalers to be dispensed at once from 1st August, 2025. Currently, patients can only collect one months’ supply from the pharmacy at a time. As part of this proposal, some budesonide with formoterol inhalers would also be available on Practitioners Supply Order (PSO) allowing clinicians to demonstrate correct inhaler technique during the consultation and supply medicines in an emergency or in situations where individual prescriptions are impractical. These changes have been recommended in response to the shift in asthma management towards AIR/SMART therapy based on the 2020 updates to the NZ Asthma Guidelines.
Consultation closes 4 pm, Friday, 9th May. This link contains an online form to complete.
In brief: Medicine funding decisions for diabetes, inflammatory bowel disease, eczema and rheumatoid arthritis
Decision to fund insulin degludec with insulin aspart for patients with diabetes
Pharmac has announced that from 1st May, 2025, insulin degludec and insulin aspart (Ryzodeg) will be funded without restriction for patients with type 1 and type 2 diabetes, following consultation on a proposal in March (as reported in Bulletin 119). No changes have been made to the original proposal.
Ryzodeg is an insulin co-formulation which combines the ultralong-acting insulin degludec (70%) with the rapid-acting insulin aspart (30%). It can reduce the number of insulin injections required for some patients and may improve blood glucose stability. Ryzodeg may also be an appropriate alternative for patients prescribed NovoMix 30 FlexPen, which is being discontinued; see Bulletin 119 for further information.
FreeStyle Libre 2 Plus continuous glucose monitor to be funded
A new continuous glucose monitor (CGM), FreeStyle Libre 2 Plus, is being funded from 1st May, 2025, for patients with type 1 or type 3c diabetes. The new monitor is an upgraded model of the currently funded FreeStyle Libre 2, which will be discontinued in 2026. It can be worn for an additional day (15 instead of 14), and is considered more accurate than the FreeStyle Libre 2. Patients will need a new prescription for this CGM; up to 28 FreeStyle Libre 2 Plus CGMs will be funded each year, or six per prescription.
Decision to widen access to medicines for inflammatory bowel disease, eczema and rheumatoid arthritis
Pharmac has announced that from 1st May, 2025, access to upadacitinib (Rinvoq), a Janus-kinase (JAK) inhibitor, will be widened to include patients with moderate to severe ulcerative colitis, severe Crohn’s disease, moderate to severe atopic dermatitis and rheumatoid arthritis who meet eligibility criteria. This decision comes following consultation on a proposal earlier in the year, as reported in Bulletin 115. Any relevant practitioner can apply for Special Authority approval, and this will be valid for six months. View Special Authority criteria for each condition here.
Also, from 1st May, 2025, venetoclax and azacitidine will be funded with Special Authority approval for patients with acute myeloid leukaemia, and access to ibrutinib will be widened for those with chronic lymphocytic leukaemia.
This Bulletin is supported by the South Link Education Trust
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