Lumigan (Bimatoprost): A Comprehensive Guide For Patients in Australia
Basic Product Information
- International Nonproprietary Name (INN): Bimatoprost
- Australia Brand Names: Lumigan®, Latisse® (cosmetic use only), Ganfort® (Bimatoprost + Timolol, dual therapy)
- ATC Code: S01EE03
- Available Forms & Strengths:
- Ophthalmic solution: 0.01% w/v and 0.03% w/v (eye drops)
- Manufacturers: Allergan Australia Pty Ltd (an AbbVie company), with other generics licensed for use in Australia
- Prescription Status: Schedule 4 (Prescription Only Medicine)
Mechanism of Action
For Patients: Bimatoprost is used mainly to lower pressure inside the eye. It works by increasing the natural flow of fluid out of the eye, which helps reduce pressure and prevents further damage, particularly in patients with glaucoma or ocular hypertension.
For Healthcare Professionals: Bimatoprost is a synthetic prostamide, acting primarily on the prostaglandin F2α (FP) receptors in the ciliary body. This enhances both uveoscleral and trabecular outflow of aqueous humour, resulting in sustained intraocular pressure (IOP) reduction.
Pharmacokinetics
- Absorption: Minimal systemic absorption following ocular administration (concentrations peak in the aqueous humour within 10 minutes).
- Metabolism: Metabolised mainly in the liver via oxidation, N-deethylation, and glucuronidation.
- Elimination: Excreted predominantly in urine (about 67%) and faeces (27%).
- Duration of Action: IOP-lowering effect lasts up to 24 hours, supporting once-daily dosing.
Use in Everyday Life & Best Practices
Typical Doses: The usual adult dose for glaucoma or ocular hypertension is one drop of Lumigan (0.01% or 0.03%) in the affected eye(s) once daily, preferably in the evening.
How to Use:
- Wash your hands thoroughly before use.
- If you wear contact lenses, remove them — wait at least 15 minutes after applying the drops before reinserting.
- Tilt your head back, gently pull down your lower eyelid, and instil one drop into the affected eye(s).
- For best effect, gently press your finger against the inner corner of your eye (by the nose) for 1-2 minutes to reduce systemic absorption.
- Do not touch the dropper tip to the eye or any surface to avoid contamination.
Dosing in the Morning vs Evening
- Evening Dosing (Preferred): Clinical studies and Australian guidelines suggest instilling Lumigan in the evening usually provides better IOP control over 24 hours.
- Morning Dosing: Slightly less effective for some patients but acceptable if evening dosing is missed; consult your doctor before switching times.
- Tips: Try to use Lumigan at the same time each day to maintain consistent eye pressure control.
Taking With Food or on an Empty Stomach
As Bimatoprost is an eye drop, its effectiveness is not influenced by food or drink. There are no specific dietary restrictions, and it is suitable for use before or after meals—whether you follow a typical English diet or have special dietary needs.
Interaction Warnings
| Category | Interaction/Warning | Recommendation |
|---|---|---|
| Food | No known interactions. | No dietary restrictions required. |
| Alcohol | No specific interaction, but best to avoid excess alcohol if you have eye conditions. | Limit alcohol intake for eye and overall health. |
| Medications: Other Eye Drops | Possible additive effects—increased risk of irritation or pressure changes if used with other prostaglandin analogues. | Wait 5 minutes between different eye drops. |
| Systemic Drugs | Low systemic absorption; theoretically, minimal risk of interaction, but always advise your GP or pharmacist of all medicines you use. | Consult your doctor or pharmacist if concerned. |
| Ocular Steroids | May reduce IOP-lowering efficacy. | Close monitoring advised if both are needed. |
Indications
| Indication | Status | Notes |
|---|---|---|
| Ocular Hypertension | Approved | First-line or adjunct therapy |
| Open Angle Glaucoma | Approved | First-line or adjunct therapy |
| Eyelash Hypotrichosis (Latisse®) | Approved (Cosmetic) | Prescription only |
| Angle Closure Glaucoma | Off-label | Specialist supervision required |
Dosing According to Clinical Indications
| Population | Indication | Recommended Dose | Comments |
|---|---|---|---|
| Adults | Glaucoma / Ocular Hypertension | 1 drop (0.01% or 0.03%) in affected eye(s) once daily | Best in the evening |
| Elderly | Same as adults | 1 drop once daily | No dose adjustment needed |
| Children (≤18 years) | Glaucoma | Limited data, specialist advice required | Not routinely recommended |
| Cosmetic Use (Latisse®) | Eyelash Growth | Apply 1 drop to applicator, brush along upper lash line once nightly | Prescription required |
Safety Profile & Side Effects
- Common Side Effects (>1%):
- Eye redness (conjunctival hyperaemia)
- Itchy or dry eyes
- Eye discomfort, feeling of a foreign body
- Darkening of eyelid skin and/or increased brown pigmentation of the iris (may be permanent)
- Eyelash growth, thickening, or darkening
- Less Common or Rare Side Effects:
- Eye infection, eyelid swelling or irritation
- Increased tearing or blurred vision
- Ocular pain
- Allergic reactions
- Worsening of intraocular inflammation (rare)
- Warnings:
- May cause changes in eye or eyelid appearance
- Avoid use if you have active eye infection or intraocular inflammation
- Caution in pregnancy & breastfeeding—use only after medical advice
Guidelines for Proper Use (Australian Conditions)
- Bring your medicine:when visiting your optometrist or ophthalmologist, bring your Lumigan bottle.
- Hygiene is key: Wash your hands before each use; avoid touching the tip.
- If you miss a dose: Use it as soon as you remember on the same day. Skip the missed dose if it’s almost time for your next dose. Do not double up.
- Don’t share: Never share your eye drops with anyone else.
- Storage in the Australian climate: Protect from heat, direct sunlight, and moisture.
- Discard 4 weeks after opening: Write the date on the bottle when first opened.
Alternative Treatment Options
- Other Prostaglandin Analogues: Latanoprost (Xalatan®), Tafluprost (Saflutan®), Travoprost (Travatan®)
- Pros: Similar efficacy with different tolerability profiles.
- Cons: Side effects such as pigmentation and eyelash changes are a class effect.
- Beta-blocker Eye Drops: Timolol (Timoptol®)
- Pros: Often used in combination therapy.
- Cons: May cause systemic side effects (e.g., asthma, slow heart rate).
- Carbonic Anhydrase Inhibitors: Dorzolamide (Trusopt®), Brinzolamide (Azopt®)
- Pros: Useful where prostaglandins not tolerated.
- Cons: Two to three times daily dosing, possible local side effects.
- Alpha-2 Agonists: Brimonidine (Alphagan®)
- Pros: Adjunct therapy, less iris darkening.
- Cons: Higher allergy potential, more frequent dosing required.
- Australian Pharmaceutical Benefits Scheme (PBS): Several glaucoma medicines, including Bimatoprost and alternatives, are reimbursed for eligible patients—ask your pharmacist for details.
Legal, Registration and Reimbursement Status in Australia
- Therapeutic Goods Administration (TGA): Lumigan is TGA registered and approved for glaucoma and ocular hypertension.
- Prescription-only (Schedule 4): Available only from Australian pharmacies with a valid prescription.
- Pharmaceutical Benefits Scheme (PBS): Lumigan is PBS-subsidised for eligible patients diagnosed with glaucoma or ocular hypertension. Check your eligibility with your prescriber or pharmacist.
- Off-label (Cosmetic use): Latisse® for eyelash enhancement is also regulated and requires a prescription.
Latest Research & Clinical Guidance (2022–2025)
- Recent guidance confirms prostaglandin analogues (including Bimatoprost) as first-line therapy for most types of open angle glaucoma (Refer: NHMRC Australian Guidelines for Glaucoma Management 2022, European Glaucoma Society 2023).
- More recent meta-analyses (e.g. J Glaucoma. 2023;32:523–533) show minimal differences in IOP-lowering efficacy between prostaglandin analogues; choice may depend on tolerance and cost.
- Studies in 2024 support evening dosing for optimal effect.
- Bimatoprost is being evaluated for neuroprotective effects and possible expanded uses in refractory glaucoma & post-laser therapy (ref. Ophthalmology 2024;131(2):195-203).
- No new major safety concerns identified in 2022–2025 literature.
Availability & Delivery
| Pack Size | Typical Price Range (A$) | Delivery to Major Cities* |
|---|---|---|
| 3 mL (0.01%, 0.03%) | 14 – 24 | 1–2 business days (Sydney, Melbourne, Brisbane) |
| 5 mL (0.01%, 0.03%) | 19 – 32 | 2–3 business days (Adelaide, Perth, Canberra) |
| 2 x 3 mL multipack | 26 – 40 | 2–4 business days (regional Australia) |
*Indicative home delivery times for pharmacy-fulfilled prescriptions. Rural/remote deliveries may take longer.
Frequently Asked Questions (FAQ)
- How long does it take for Lumigan to work?
Most patients notice a reduction in eye pressure within a few days of starting treatment, but maximum reduction may take up to 4 weeks. Regular daily use is essential. - Can I use my other eye drops with Lumigan?
Yes, but wait at least 5 minutes between different drops to prevent one medicine from washing out the other. Always tell your eye doctor about all eye medicines you use. - Will Lumigan change my eye colour?
It is possible for Lumigan to gradually darken the coloured part of the eye (the iris), especially in patients with mixed-colour irises (e.g. blue-brown, green-brown). The effect is usually permanent. - Can I use Lumigan during pregnancy or breastfeeding?
Use only after discussing with your doctor. There is limited safety data for use in pregnancy and breastfeeding, so it should only be used if clearly needed. - What should I do if I miss a dose?
Take your missed dose as soon as you remember—unless it is nearly time for the next dose. Do not use two doses together; simply continue with your regular schedule.
For further information: Please speak with your local pharmacist, optometrist, or ophthalmologist. Adverse events can be reported to the TGA online at tga.gov.au/reporting-adverse-events.
