TGA Product Information Safety Updates 11 September

TGA

When new safety information for medicines is identified, the Therapeutic Goods Administration (TGA) works with the sponsors to update Product Information (PI) to ensure that health professionals and consumers have access to this information. New safety information can be identified through the TGA’s ongoing safety monitoring activities or uncovered and submitted by sponsors themselves. Please see below details of some medicines that have recently had safety related updates to their PI.

The TGA monitors the safety of medicines marketed in Australia using:

Changes to the PI that result from TGA safety monitoring activities may:

  • narrow indications
  • add or modify specific sections, such as:
    • contraindications
    • warnings or precautions
    • use in fertility, pregnancy and lactation
    • use in special populations
    • adverse effects.

It is important for prescribers and other health professionals to be aware of safety-related PI changes, as they may require you to take actions or do things differently, such as:

  • counsel patients on identified risks
  • undertake special monitoring or precautions
  • in some instances select alternate medications.

Significant PI changes are often supported by distribution of a Dear Health Care Professional Letter on the issue, which are produced by the medicine’s sponsor and sent directly to health professionals.

We will publish a Medicines Safety Update (MSU) article detailing recent safety-related PI updates each month, although this may not include all safety-related updates. We will continue to publish MSU articles for critical safety issues or topics of special interest.

The below medicines are generally innovator brands (generic brands may be included in some circumstances). Generic brands containing the same active ingredients as the medicines below are required to align with the safety information in the innovator’s PI and will be updated accordingly.

Show 102550100 entries
Search:
Active ingredient

Brand name

Sponsor

PI updates (sections updated and summary of key information)Date of approval
abiraterone acetate/prednisolone

Andriga

Actor Pharmaceuticals Pty Ltd

4.8 – Adverse effects (undesirable effects)

  • Added panniculitis
2026-07-29
amoxicillin sodium/potassium clavulanate

Curam

Sandoz Pty Ltd

4.4 – Special warnings and precautions for use

Added:

  • crystalluria (including acute renal injury) observed very rarely in patients with reduced urine output
  • may cause false test results for aspergillus infection

4.5 – Interactions with other medicines and other forms of interactions

Added:

  • penicillins may reduce the excretion of methotrexate causing a potential increase in toxicity
  • interaction with mycophenolate mofetil

4.6 – Fertility, pregnancy and lactation

  • Added breastfeeding – diarrhoea and fungus infection of the mucous membranes are possible in the breast-fed infant.

4.8 – Adverse effects (undesirable effects)

Added:

  • drug reaction with eosinophilia and systemic symptoms (DRESS)
  • symmetrical drug-related intertriginous and flexural exanthema (SDRIFE)
2026-06-29
asciminib hydrochloride

Scemblix

Novartis Pharmaceuticals Australia Pty Ltd

4.4 – Special warnings and precautions for use

  • Added arterial occlusive events
2026-07-14
azathioprine

Imuran

Aspen Pharmacare Australia Pty Ltd

4.2 – Dose and method of administration

  • Food or milk changed to milk or dairy products

4.4 – Special warnings and precautions for use

  • Additional information about contraception
  • Added Neuromuscular agents
  • Added Posterior reversible encephalopathy syndrome (PRES)

4.6 – Fertility, pregnancy and lactation

  • Additional information about contraception

4.8 – Adverse effects (undesirable effects)

Added:

  • posterior reversible encephalopathy syndrome (PRES)
  • cardiac dysfunction
2026-07-09
belzutifan

Welireg

Merck Sharp & Dohme (Australia) Pty Ltd

4.5 – Interactions with other medicines and other forms of interactions

  • Clarified in patients with reduced activity of both UGT2B17 and CYP2C19, coadministration of WELIREG with CYP3A4 inhibitors may increase the risk of adverse reactions of WELIREG
2026-07-01
bicalutamide

Cosudex

AstraZeneca Pty Ltd

4.4 – Special warnings and precautions for use

  • Added interstitial lung disease
2026-07-08
bicalutamide/goserelin

Zolacos CP

AstraZeneca Pty Ltd

4.2 – Dose and method of administration

  • Addition of information on administration of goserelin implant

4.4 – Special warnings and precautions for use

  • Added interstitial lung disease (ILD)

4.5 – Interactions with other medicines and other forms of interactions

  • Added androgen deprivation treatment may prolong the QT interval
2026-07-07
clozapine

Clozaril

Viatris Pty Ltd

4.4 Special warnings and precautions for use

  • Updated warning under subheading ‘Gastrointestinal hypomotility with severe complications’. Early diagnosis and treatment of constipation at the start of clozapine therapy is important in preventing serious gastrointestinal-related complications (e.g. appendicitis). Appendicitis, including perforated appendicitis, have been reported in post-marketing cases in patients treated with clozapine of any duration, regardless of age or gender. Some of these cases have reported fatal outcomes. Appendicitis and perforated appendicitis require intervention with medicine and surgery.

4.5 Interactions with other medicines and other forms of interactions

  • Added new interaction, concomitant treatment of clozapine and valproic acid may increase the risk of clozapine-induced myocarditis. If concomitant use of clozapine with valproic acid is necessary, careful monitoring for this event is required.

4.8 Adverse effects (undesirable effects)

  • Added appendicitis*.
  • Added appendicitis perforated*

*May be fatal.

2026-07-16
dabrafenib (as mesilate)

Tafinlar

Novartis Pharmaceuticals Australia Pty Ltd

4.4 Special warnings and precautions for use

  • Added new warning under subheading ‘Potentiation of radiation toxicity’. Cases of radiation recall and radiation sensitisation have been reported in patients treated with radiation either prior, during or subsequent to treatment with dabrafenib as monotherapy or in combination with trametinib. Most cases were cutaneous in nature, but some cases involved other locations including the spinal cord. Dabrafenib should be used with caution when given concomitantly or sequentially with radiation treatment.

4.5 Interactions with other medicines and other forms of interactions

  • Added new interaction under subheading ‘Radiation treatment’. Potentiation of radiation treatment toxicity has been reported in patients receiving dabrafenib as monotherapy or in combination with trametinib.

4.8 Adverse effects (undesirable effects)

  • Added potentiation of radiation toxicity with a frequency of common.
2026-07-27
dasatinib

Sprycel

Bristol-Myers Squibb Australia Pty Ltd

4.8 – Adverse effects (undesirable effects)

  • Added side effects in the paediatric population is similar to that of the adult population
2026-07-21
Showing 1 to 10 of 35 entries

    /Public Release. View in full here.