Life Amanda Bynes on drugs and using Adderall for weight loss: ‘I got really into my drug usage’ November 27, 2018 Andrea Mandell, USA TODAY Comments Off on Amanda Bynes on drugs and using Adderall for weight loss: ‘I got really into my drug usage’ Amanda Bynes, 32, opened up to Paper magazine and revealed it was drugs, not a mental breakdown, that led to her bizarre Twitter rants.