Answer
Each 0.05 ml drop of Brolene Eye Drops (propamidine isetionate) contains 0.0025 mg benzalkonium chloride, equivalent to 0.05 mg/ml.
Sources for this answer
- Brolene Eye DropsThornton & Ross Ltd · emc · SmPC §4.4 Special warnings and precautions for use · Version 1Document updated
Sources checked