Stugeron (Cinnarizine)

Stugeron (Cinnarizine): Patient Information for Australian Pharmacy Users

Basic Product Information

*Note: Stugeron supply in Australia may be through special access schemes, e.g., for travel sickness patients or imported generics. Always consult your pharmacist or doctor about legal supply pathways.

Mechanism of Action

For Patients: Cinnarizine helps prevent and treat symptoms like nausea, vomiting, and dizziness (especially from motion sickness or inner ear problems). It works by blocking certain signals in the brain and inner ear that can cause nausea and balance issues.

For Specialists: Cinnarizine is a selective calcium channel antagonist. It inhibits the influx of calcium into vestibular sensory cells, suppressing vestibular activity. It has antihistaminic (H1-receptor antagonism) and mild anticholinergic effects, which further reduce vestibular neuronal excitability, thus alleviating vertigo, motion-induced symptoms, and vascular headaches.

Pharmacokinetics

• Absorption: Rapidly absorbed from the gastrointestinal tract after oral administration. Peak plasma levels typically occur 2–4 hours post-ingestion.
• Metabolism: Primarily metabolised by the liver via oxidation and conjugation.
• Elimination: Excreted mainly through urine and faeces (as metabolites). Terminal half-life averages around 4–6 hours.
• Duration of Action: Generally provides symptom relief for 8–12 hours.

Use in Everyday Life and Best Practices

• Typical Adult Dose: 25–50 mg up to three times daily, depending on the indication.
• How to Use: Swallow tablets whole with water. For motion sickness, take at least 2 hours prior to travel.
• Australian Context: Commonly used for travel by car, train, ferry, or plane, as well as for vertigo arising from inner ear conditions or migraines.

Best Practices: Always follow your doctor’s individual instructions. For children and elderly people, special dosing and safety monitoring may apply. Notify your health professional if you have liver, kidney, or neurological conditions.

Dosing in the Morning vs Evening

• Morning: Useful to prevent motion sickness during day trips, school excursions, or work-related travel. Avoids sleepiness at inappropriate times.
• Evening: Beneficial for vertigo, Menière’s disease, or nocturnal symptoms. May help with sleep due to its mild sedative effect but can cause morning drowsiness if used late at night.
• Tip: Take Stugeron at the same time each day to maintain steady levels and minimise side effects.

Taking Stugeron with Food or on an Empty Stomach

• With Food: Reduces risk of stomach upset and improves tolerability. Aligns well with typical Australian dietary customs such as breakfast before travel or journeys.
• On an Empty Stomach: Increases speed of absorption, but may increase nausea or gastrointestinal discomfort.
• Recommendation: Take with or after meals to minimise stomach upset, unless your doctor advises otherwise. Avoid high-fat, heavy meals that may delay absorption.

Interaction Warnings

Indications

Note: In Australia, indication use is guided by Therapeutic Goods Administration (TGA) approvals or clinical discretion under the special access scheme.

Dosing According to Clinical Indications

Dosage must always be individualised. Consult your GP or pharmacist, especially for paediatric or elderly patients.

Safety Profile and Side Effects

• Common Side Effects
  • Drowsiness, sleepiness
  • Stomach upset, nausea
  • Dry mouth
  • Weight gain (on long-term use)
  • Headache
• Uncommon but Serious Effects
  • Allergic reactions (rash, itching, swelling, difficulty breathing)
  • Jaundice (yellowing of the skin or eyes)
  • Extrapyramidal symptoms (tremor, rigidity, especially in older patients or with prolonged use)
  • Neuroleptic Malignant Syndrome (very rare, with high fever and confusion)
• Special Warnings
  • Avoid driving or operating machinery if drowsy.
  • Use caution in Parkinson’s disease and cognitive disorders (may worsen symptoms).
  • Do not use in children under 5 years (safety not established).
  • Pregnancy and breastfeeding: Use only if prescribed and deemed necessary by your doctor.

Guidelines for Proper Use in Australia

• Obtain from a licensed Australian pharmacy following a prescription from your GP or specialist.
• Do not use for purposes not indicated by your healthcare provider.
• Keep out of reach of children.
• Store below 25°C, away from direct sunlight and moisture.
• Do not exceed recommended dose or frequency.
• If you miss a dose, take it as soon as you remember—unless it’s close to your next dose, in which case, skip and resume as normal.
• Routinely review medication with your pharmacist, especially if starting new medicines.
• Speak to a pharmacist if you experience side effects or suspect interactions.

Alternative Treatment Options in Australia

• Prochlorperazine – Effective for vertigo and nausea; can be more sedating.
• Promethazine – Used for travel sickness but associated with more drowsiness.
• Meclizine (Antivert, Bonine) – Not widely available in Australia; imported occasionally via special access scheme.
• Hyoscine hydrobromide (Kwells, Travelcalm) – For short travel sickness prevention; over-the-counter. May cause dry mouth or blurred vision.
• Non-Pharmacological Options: Acupressure bands, ginger supplements, and behaviour modification (e.g., sitting at front of vehicle, avoiding reading in transit).

Pros and Cons Overview:

• Cinnarizine: Well tolerated, less sedating than promethazine, prescription only.
• Prochlorperazine: Good for vertigo but more side effects.
• Hyoscine: Non-sedating but not suitable for long-term use.

Legal, Registration, and Reimbursement Status in Australia

• Legal Classification: Schedule 4 (Prescription Only)
• Therapeutic Goods Administration (TGA): Approved for supply under special access scheme (SAS) or authorised prescriber status.
• Pharmaceutical Benefits Scheme (PBS): Not currently reimbursed for regular supply; cost not subsidised.
• Prescription Requirements: Written prescription from a registered medical practitioner.
• Availability: Most Australian pharmacies can obtain Stugeron or equivalent by special order (imported product), usually within 7–10 days.

Latest Research and Clinical Guidance (2022–2025)

• Recent systematic reviews (Lancet Neurology, 2023) support Cinnarizine’s tolerability and efficacy for preventing motion sickness and vestibular migraine, especially when alternatives are not tolerated.
• Australian Society of Clinical Pharmacology and Therapeutics (ASCEPT) recommends Cinnarizine for chronic vertigo and selected vestibular disorders, provided risk of sedation and extrapyramidal effects is monitored.
• Clinical audits confirm greater benefit/risk than first-generation antihistamines for persistent vestibular symptoms (MJA, 2024).
• Long-term safety in Australian populations is under ongoing review (Therapeutic Goods Administration, 2023–2024).

For more on clinical studies and guidance, visit TGA or consult your specialist.

Availability and Delivery in Australia

Prices depend on supplier and may vary. Delivery times depend on pharmacy and stock availability.

Frequently Asked Questions (FAQ)

• Is Stugeron available over the counter in Australia?
  No. Stugeron (Cinnarizine) requires a prescription from your doctor. It is not available over the counter in Australia.
• Can I drive after taking Cinnarizine?
  Cinnarizine may cause drowsiness or slowed reaction time. Avoid driving or operating heavy machinery until you know how it affects you.
• Can I take Stugeron with my other medicines?
  It may interact with sedatives, antihistamines, blood pressure medicines, and some Parkinson's disease drugs. Always check with your pharmacist or doctor before combining medications.
• Is it safe for children?
  The safety and use of Cinnarizine in children under 5 years have not been established. Only use in children on the advice of a healthcare professional, and follow the recommended dosing strictly.
• What should I do if I miss a dose?
  Take it as soon as possible unless it's almost time for your next dose. Do not double the dose to catch up.

Always seek individual medical advice from your doctor or local Australian pharmacist regarding Cinnarizine (Stugeron) and its suitability for your circumstances.