Valaciclovir (RBX)™
Active ingredients: Valaciclovir
Consumer medicine information
Read the CMI leaflet (Opens in new tab) for facts you need to know before, during and after taking your medicine.
For more information about CMIs and how to read them, please visit How to read Consumer Medicine Information (CMI).
What this medicine is used for
For the treatment of herpes zoster (shingles) in adult patients who commence therapy within72 hours of the onset of rash., For the treatment of ophthalmic zoster., For the treatment of clinical episodes of genital herpes simplex infections.,For the prevention of recurrent genital herpes in immunocompromised patients with creatinine clearance of >15 mL/min., For reduction of transmission of genital herpes in patients suffering from recurrent genital herpes. In addition to therapy with VALACICLOVIR RBX (valaciclovir), it is recommended that patients use safer sex practices. (see Section 4.4 SPECIAL WARNINGS AND PRECAUTIONS FORUSE)., For prophylaxis of cytomegalovirus (CMV) infection and disease following solid organ transplantation in patients at risk of CMV disease.
Source: ARTG
Storage conditions
- Shelf lifetime is 36 Months
- Store below 25 degrees Celsius
Source: ARTG
How to use this medicine
Non-composite pack
This medicine contains one component only.
Component
- Tablet, film coated
- Oral
- Blue, capsule shaped, biconvex, film coated, tablets, debossed with 'V' AND '5' on either side of breakline on one side, notched on either side along with the breakline and plain on the other side.
Source: ARTG
Images

Images © Medicines Information Pty Ltd.
Do I need a prescription?
These medicine packs are available from a pharmacist and requires a prescription. It is Schedule 4: Prescription Only Medicine.
- 10 tablets per pack
- 100 tablets per pack
- 30 tablets per pack
- 42 tablets per pack
Source: ARTG
Is this medicine subsidised?
This medicine is not listed on the Pharmaceutical Benefits Scheme (PBS). Talk to your pharmacist about how much it will cost.
Source: PBS
Pregnant or planning a pregnancy?
For the active ingredient: Valaciclovir
You should seek advice from your doctor or pharmacist about taking this medicine. They can help you balance the risks and the benefits of this medicine during pregnancy.
Source: AHT
Reporting side effects
If you experience a side effect from this medicine, tell your doctor or pharmacist. Or report it directly to the TGA (Therapeutic Goods Administration).
You can report side effects to your doctor, or directly at Report an adverse event or safety problem (Opens in new tab)
Source: ARTG
Data sources
- Australian Health Thesaurus (AHT) (Opens in new tab) – Last updated on 3 August 2026
- Australian Medicines Terminology (AMT) (Opens in new tab) – Last updated on 3 August 2026
- Australian Register of Therapeutic Goods (ARTG) (Opens in new tab) – Last updated on 3 August 2026
- Pharmaceutical Benefits Scheme (PBS) (Opens in new tab) – Last updated on 3 August 2026
- Medicines Information Pty Ltd (Opens in new tab) – Last updated on 4 March 2026
Disclaimer
Healthdirect medicines information is not intended for use in an emergency. If you are suffering an acute illness, overdose, or emergency condition, call triple zero (000) and ask for an ambulance.
Reasonable care has been taken to provide accurate information at the time of creation. This information is not intended to substitute medical advice, diagnosis or treatment and should not be exclusively relied on to manage or diagnose a medical condition. Please refer to our terms and conditions (Opens in new tab).
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