nocturnal leg cramps
"I develop severe legs cramps at night for some reason and found that Qualaquin works for me.  Also, I have COPD- bronchial asthma and suffer with tightening of the chest muscles, not sure why.  When I take Qualaquin, I have noticed the chest muscle relaxes, and I can breathe without the constant coughing. It gives me some time to physically recuperate for a couple of hours. Life saver!"