Onrex Tablets


  • Onrex contains Ondansetron hydrochloride dihydrate
  • Onrex is available in two strengths – 4 mg or 8 mg
  • Onrex 4 mg and Onrex 8 mg are available in packs of 50 film-coated tablets
  • Onrex is fully funded on the Pharmaceutical Schedule

Onrex tablets are indicated for the management of nausea and vomiting induced by cytotoxic chemotherapy and radiotherapy. Ondansetron tablets are also indicated for the prevention of post-operative nausea and vomiting.

Onrex, PRESCRIPTION MEDICINE. The active ingredient in each Onrex tablet contains either 4mg or 8mg of Ondansetron hydrochloride dihydrate. Onrex 4 mg and Onrex 8 mg are provided in packs of 50 tablets.

Onrex tablets contain ondansetron hydrochloride dihydrate as the active ingredient and are used to help stop vomiting and nausea especially after certain treatments (for example, radiotherapy and chemotherapy). Onrex tablets can also be used to prevent vomiting and nausea that may occur after an operation.

Onrex tablets have risks and benefits. Do not use Onrex tablets if you are allergic to ondansetron or any of the other ingredients of Onrex tablets. Please inform your doctor or pharmacist if you are taking or have recently taken any other medicines, including any medicines obtained without a prescription from your pharmacy, health store or supermarket.

Abide by all instructions given by your doctor carefully. Do not change the dosage or stop taking Onrex tablets under any circumstances unless you have approval from your doctor. If you experience any side effects, talk to your doctor or healthcare professional.

Onrex tablets are fully funded. Standard doctor’s fees and pharmacy charges apply.

Distributed by REX Medical Ltd, Auckland, New Zealand.