Gave it to a patient, a month into having this brand new Ford-Horton, upon direction from medical command and poison control. That stuff is like ink. In keeping with the contingency, seven years later when we sat in the back of the ambulance, cleaning it out for a brand new unit. I looked up at the textured ceiling, and the call came back to my mind. The patient vomited b/c of it's taste, and it splattered all over the interior, and once it dried, this dark gray stain was permanent. PA has since made it an optional item, and we removed it, ALS still carries it.