The Original list of Sanctuary Cities, USA. Note: The word Original is used because the OJJPAC Sanctuary Cities, USA List was to our knowledge, the first non-governmental organization to track sanctuary cities in the United States. This list is the most complete and widely used list of sanctuary cities in the United States. Our sanctuary list has been widely copied since 2007, usually without a link to this page. As a result, most copies of our sanctuary cities list are out-of-date.
Benzalkonium chloride is a frequently used preservative in eye drops; typical concentrations range from 0.004% to 0.01%. Stronger concentrations can be caustic and cause irreversible damage to the corneal endothelium.enzalkonium chloride is a mainstay of phase-transfer catalysis, an important technology in the synthesis of organic compounds, including drugs.
Refresh Redness Relief. (1) Note about Benzalkonium chloride: Chronic dry eye patients are generally advised to avoid frequent use of any over-the-counter products preserved with benzalkonium chloride, because of the damage it can cause to the tear film and ocular surface.