"Drug" was just a catchy phrase for omega's guarantee to cure you out from any psychological issues the could cause you any prolonged distress.

You could insist that it is entirely impossible that you'd need it.

Would not it be a bit overconfident to make any statements on what is possible to some insanely complex and alien future self of you over a period of time which is measured by a number (in years) that takes billion to the power of billions of your current lifetime just to read?