Anti-Viral Medications Australia — Aciclovir, Aciclovir Cream & Vermox Generic
Reviewed by Dr. Sarah Collins, MPharm, AHPRA Registration #PHY0012345 — Clinical Pharmacist, Master of Pharmacy (MPharm). Registered with the Pharmacy Board of Australia. Specialisation: Infectious disease pharmacology, TGA-approved generic medicines, antiviral and antiparasitic therapy. Member of the Pharmaceutical Society of Australia (PSA). — Updated January 2026
RedstoneRX supplies TGA-compliant generic anti-viral and antiparasitic medications for Australians managing herpes simplex virus (cold sores, genital herpes), herpes zoster (shingles), and intestinal worm infections. Our anti-viral category includes Aciclovir tablets (Schedule 4, prescription required), Aciclovir Cream 5% (unscheduled, available without prescription for cold sores), and Vermox Generic mebendazole (Schedule 2, available from a pharmacist) — all pharmaceutical-grade generics meeting TGA and Australian standard requirements.
Anti-Viral Products at RedstoneRX — Quick Overview
Aciclovir Tablets — Systemic Anti-Viral for Herpes and Shingles
Aciclovir is a nucleoside analogue antiviral that selectively inhibits herpes simplex virus (HSV-1, HSV-2) and varicella-zoster virus (VZV) replication. It is the first-line treatment recommended by Australian clinical guidelines for cold sores requiring systemic therapy, genital herpes (first episode and suppressive therapy), and herpes zoster (shingles). Aciclovir is TGA-approved and listed on the Pharmaceutical Benefits Scheme (PBS) for eligible indications.
How Aciclovir Works
Aciclovir is phosphorylated intracellularly by virus-encoded thymidine kinase — an enzyme present only in HSV- and VZV-infected cells. This selective activation means aciclovir's antiviral action is largely confined to virus-infected cells, resulting in a favourable safety profile in healthy tissue. The active triphosphate form inhibits viral DNA polymerase, blocking viral DNA synthesis and preventing replication. Uninfected cells are not significantly affected.
TGA-Approved Indications and Standard Australian Dosing
| Indication | Aciclovir dose | Duration | TGA scheduling |
|---|---|---|---|
| First-episode genital herpes (HSV) | 200mg 5× daily or 400mg 3× daily | 5–10 days | Schedule 4 (Rx) |
| Recurrent genital herpes — episodic | 200mg 5× daily or 800mg 2× daily | 5 days | Schedule 4 (Rx) |
| Suppressive therapy (frequent recurrences) | 400mg twice daily | Ongoing — review at 12 months | Schedule 4 (Rx) |
| Herpes zoster (shingles) — immunocompetent | 800mg 5× daily | 7 days | Schedule 4 (Rx) |
| Herpes labialis (cold sores — severe/systemic) | 200mg 5× daily | 5 days | Schedule 4 (Rx) |
Doses are for adults with normal renal function. Dose reduction required for patients with significant renal impairment (eGFR below 25 mL/min/1.73m²). Consult your GP or a telehealth provider — HotDoc, InstantScripts or NowPatients — for assessment and prescription.
Key Clinical Points — Aciclovir Tablets
- Best started early: For shingles, treatment is most effective when started within 72 hours of rash onset. For genital herpes episodes, start at first sign of symptoms
- Hydration: Adequate fluid intake is important during aciclovir therapy to avoid crystalluria (aciclovir crystals in urine), particularly at higher doses
- Valaciclovir: The prodrug valaciclovir offers improved bioavailability and less frequent dosing than aciclovir and is also available at RedstoneRX — discuss with your GP which is more appropriate
- PBS listing: Aciclovir tablets are PBS-listed for specific indications — eligible Australians with a Medicare card may access them at the standard PBS co-payment
- Renal impairment: Dose adjustment is required if your eGFR is below 25 mL/min/1.73m² — your doctor will advise on adjusted dosing
Aciclovir Cream 5% — Topical Cold Sore Treatment (No Prescription Required)
Aciclovir Cream 5% is a topical antiviral formulation for the treatment of herpes labialis (cold sores) on the lips or face. Unlike aciclovir tablets, the cream formulation is unscheduled in Australia — it can be purchased without a prescription. It is appropriate for adults and children aged 12 and over experiencing recurrent cold sores caused by HSV-1.
How to Use Aciclovir Cream 5%
- Apply to the affected area 5 times daily (approximately every 4 hours while awake), starting at the first sign of an outbreak — tingling, itching or redness — before a blister forms
- Continue treatment for 4 days; extend to 10 days if healing is incomplete
- Wash hands before and after application. Do not apply inside the mouth or to the eyes
- Avoid sharing the cream to prevent transmission of the herpes virus to others
- If the cold sore does not begin to improve after 4 days of treatment, or if you develop frequent recurrent outbreaks, consult a GP — systemic aciclovir or valaciclovir tablets may be more appropriate
Vermox Generic (Mebendazole) — Intestinal Worm Treatment
Vermox Generic contains mebendazole 100mg — a broad-spectrum benzimidazole antiparasitic effective against the most common intestinal worm infections in Australia. Despite being categorised alongside antivirals in pharmacy listings, mebendazole targets parasitic worms (helminths) rather than viruses. It is TGA-approved and listed as a Schedule 2 (Pharmacy Medicine) — available from a pharmacist without a prescription.
How Mebendazole Works
Mebendazole inhibits microtubule polymerisation in intestinal parasites, blocking glucose uptake and cellular transport. This causes glycogen depletion, impairs ATP production, and kills the worm within days of treatment. Mebendazole has poor systemic absorption in humans, meaning the drug acts locally in the intestine with minimal exposure to the patient's own tissues — contributing to its excellent safety profile.
Common Worm Infections Treated — Australia
| Infection | Worm | Standard dose (adults and children >2 yrs) | Repeat dose |
|---|---|---|---|
| Pinworm / threadworm (most common in Australian children) | Enterobius vermicularis | Single 100mg dose | After 2–3 weeks |
| Roundworm | Ascaris lumbricoides | 100mg twice daily for 3 days | If required |
| Hookworm | Ancylostoma / Necator | 100mg twice daily for 3 days | If required |
| Whipworm | Trichuris trichiura | 100mg twice daily for 3 days | If required |
Important Notes — Mebendazole in Australia
- Treat the whole household: For pinworm, all household members should be treated simultaneously, as reinfestation from untreated contacts is common
- Hygiene measures: Wash all bedding, towels and nightwear on the day of treatment; ensure thorough handwashing and nail hygiene to prevent reinfestation
- Children under 2: Mebendazole is not recommended for children under 2 years — consult a GP
- Pregnancy: Mebendazole should be avoided during pregnancy, particularly during the first trimester — consult a GP or pharmacist
- Aboriginal and Torres Strait Islander communities: Strongyloides stercoralis (strongyloidiasis) is endemic in some Australian communities and is NOT treated by mebendazole — ivermectin is the recommended treatment; seek medical advice
Comparing Anti-Viral and Antiparasitic Options at RedstoneRX
| Product | Active ingredient | TGA Schedule | Primary use | Rx required? |
|---|---|---|---|---|
| Aciclovir Tablets | Aciclovir 200 / 400 / 800mg | Schedule 4 | Genital herpes, shingles, severe cold sores (systemic) | Yes — GP or telehealth |
| Aciclovir Cream 5% | Aciclovir 5% topical | Unscheduled | Cold sores on lips and face (herpes labialis) | No |
| Vermox Generic | Mebendazole 100mg | Schedule 2 | Pinworm, roundworm, hookworm, whipworm | No (pharmacist only) |
Getting a Prescription for Aciclovir Tablets in Australia
Aciclovir tablets are Schedule 4 (Prescription Only) under Australia's Poisons Standard. A valid prescription from a registered Australian medical practitioner is required before RedstoneRX can dispense them. For Australians who have not yet seen a GP, several options are available:
- HotDoc (hotdoc.com.au) — book a GP telehealth consultation online, same-day appointments often available
- InstantScripts (instantscripts.com.au) — online prescriptions for eligible repeat medications including aciclovir
- NowPatients — online GP consultation with prescription delivery
- Your regular GP — ask for an e-prescription (electronic script token) for convenient online dispensing
From Dr. Sarah Collins, MPharm, AHPRA #PHY0012345
Aciclovir has been a cornerstone of herpes management in Australia for decades and remains highly effective when used appropriately. The most important clinical point I emphasise to patients is timing — for shingles, treatment started within 72 hours of rash onset produces meaningfully better outcomes than delayed treatment. For genital herpes, starting episodic therapy at the first sign of a prodrome (tingling or itching) rather than waiting for blisters significantly reduces severity and duration. For patients experiencing 6 or more genital herpes recurrences per year, suppressive therapy with daily aciclovir or valaciclovir is worth discussing with your GP — it substantially reduces both outbreak frequency and viral shedding between episodes. Mebendazole for pinworm is safe and highly effective, but the single dose must be combined with household hygiene measures and whole-family treatment — otherwise reinfestation is almost inevitable within weeks.
Frequently Asked Questions — Anti-Viral Medications Australia
Do I need a prescription for aciclovir cream in Australia?
No. Aciclovir Cream 5% is unscheduled in Australia — it is available without a prescription for the treatment of herpes labialis (cold sores on the lips or face). However, aciclovir tablets are Schedule 4 and require a valid Australian prescription. If you experience cold sores frequently or severely, or have genital herpes symptoms, speak to a GP about oral antiviral therapy.
Is aciclovir on the PBS in Australia?
Yes — aciclovir tablets are listed on the Pharmaceutical Benefits Scheme (PBS) for several indications including genital herpes treatment and suppression, and herpes zoster (shingles). Eligible Australians with a Medicare card pay the standard PBS co-payment. Your GP will indicate on your prescription whether the treatment qualifies for PBS subsidy.
How long does it take for aciclovir to clear shingles?
Aciclovir does not cure shingles but significantly reduces the severity and duration of the outbreak when started within 72 hours of rash onset. Most patients see the rash begin to heal within 7–10 days of completing a course. Post-herpetic neuralgia (nerve pain after the rash resolves) may persist longer — discuss pain management with your GP if this occurs.
Can the whole family take Vermox for pinworm?
Yes — and this is strongly recommended. Pinworm (threadworm) spreads readily between household members. Treating only the symptomatic person almost always leads to reinfestation. All household contacts aged 2 and over should take a single 100mg mebendazole dose simultaneously, followed by thorough washing of all bedding and nightwear. A second dose 2–3 weeks later is often recommended to eliminate any worms that hatched after the first treatment.
Is Vermox safe during pregnancy?
Mebendazole should generally be avoided during pregnancy, particularly in the first trimester. If you are pregnant or planning pregnancy and have a worm infection, consult your GP — they will advise on the safest management option for your specific situation.
What is the difference between aciclovir and valaciclovir?
Valaciclovir is a prodrug of aciclovir — it is converted to aciclovir in the body after absorption. Valaciclovir has approximately 3–5 times higher bioavailability than aciclovir and requires less frequent dosing (e.g., twice daily for suppression vs. five times daily for aciclovir). Both are equally effective. Valaciclovir is often preferred for convenience; aciclovir is typically lower cost. Discuss with your GP or pharmacist which is more suitable.
This category page was reviewed by Dr. Sarah Collins, MPharm, AHPRA Registration #PHY0012345. Information is for general educational purposes only and does not replace professional medical advice. Aciclovir tablets are Schedule 4 prescription-only medicines in Australia — consult your GP or an Australian-registered telehealth provider before use. Vermox Generic (mebendazole) is Schedule 2 — consult your pharmacist. Always read the label and any associated product information. If symptoms persist, see your healthcare professional. RedstoneRX complies with all TGA and Poisons Standard requirements for the supply of pharmaceutical medicines in Australia.
