Answer
The preservative benzalkonium chloride in the Brown & Burk UK Ltd product azelastine hydrochloride 0.5 mg/ml eye drops may cause eye irritation, especially in patients with dry eyes or corneal disorders.
Sources for this answer
- Azelastine hydrochloride 0.5 mgml Eye drops solutionBrown & Burk UK Ltd · emc · SmPC §4.4 Special warnings and precautions for use · Version 3Document updated
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