“Medicine sometimes snatches away health, sometimes gives it”
– Ovid, Tristia, Book II
In Tristia the Roman poet Ovid noted a healthcare challenge that is as true in our age as it was in his – medicine can affect different people differently. While they lack the eloquence and poetry of Ovid, every pharmaceutical advertisement says much the same thing, citing both the beneficial and adverse effects that a patient may experience. Most will benefit, some may experience no improvement, and a small percentage may experience an unintended side effect.