There was an Old Man of Vienna, <br />Who lived upon Tincture of Senna; <br />When that did not agree, <br />He took Camomile Tea, <br />That nasty Old Man of Vienna.<br /><br />Edward Lear<br /><br />http://www.poemhunter.com/poem/limerick-there-was-an-old-man-of-vienna/