“… oxymetazoline application at an interval of 1 h … in about 3 h. Exposure to cocaine (10 μmol/l), hydrocortisone (100 μmol/l) and U-0521, a catechol-O-methyltransferase inhibitor (100 pmol/… 92-, 32- and 7 fold in iris dilator tissue of albino rabbit, pigmented rabbit and human, respectively.”