He no longer took them at all, apparently, having undergone a very gradual withdrawal at the clinic. He wasn’t sure when he’d actually stopped having any, as the unmarked capsules had made it impossible to know. And he’d taken lots of capsules, many of them containing food supplements of various kinds, the clinic having some obscure naturopathic basis which he’d put down to basic Swissness. Though in other ways the treatment had been quite aggressive, involving everything from repeated massive blood transfusions to the use of a substance they called a "paradoxical antagonist." This latter produced exceptionally peculiar dreams, in which Milgrim was stalked by an actual Paradoxical Antagonist, a shadowy figure he somehow associated with the colors in 1950s American advertising illustrations. Perky.