A dire scarcity of drugs is worsening, in part, because they are so cheap

FOR MOST people, a good belly laugh is a wonderful thing. For Rachel Rothwell, it can literally cause her to crumple to the floor. She suffers from cataplexy, a condition whereby strong emotions, such as joy or anger, paralyse the muscles, prompting complete physical collapse. For the past nine years, a medication called clomipramine has alleviated her symptoms. So effective was the medication she almost forgot she suffered from the disease at all.