Did einstein do drugs?

ive been told einstein did acid and or other drugs is this true? also did he hold a smaller brain that average?
Answers:    It is within reason to guess that he did drugs, though at the time it was perfectly proper and drugs like cocaine were commonplace and endorsed. I don't think he had a smaller brain, but he be missing a certain gland (not sure which one) and he had difficulty beside his early schooling and some everyday activities. It's possible that he be autistic or presented Asperger's Syndrome.