A few months after being diagnosed with bipolar disorder, Laura Grace Simpkins began to take lithium. It was the “gold standard” treatment and she was spellbound – at first. But she soon began to have doubts about this mysterious drug, one that stabilised her mood but stole her pizzazz. Little is known about how lithium works, and almost no consideration is given to the social and environmental costs of producing it. Should she really prioritise herself over everything and everyone else? Here she investigates her relationship with her medication and her mental health, asking if lithium is the bitter pill she has to swallow.