question: my husband was diagnosed on 8/7/2011 with chest infection and prescribed Klacid 250mg. He was given another script for Klacid on 12/7/2011 just in case it did not cleared up.  His sputum is now white, not green anymore and we want to know should he stop taking the tablets.  Also can Klacid cause pain in his upper leg and elbows.?