Family Ties (1982)

Season 2: Episode 6

When Alex takes diet pills for a lift during mid-terms, his dependency level increases daily. Alex is studying for several tests and convinces Mallory to obtain diet pills to help him stay awake. At his hyperness and irritability increase, so does his dependency on the pills. When he finally gets so desperate that he threatens Mallory to get more drugs, she becomes worried that he is headed for a ""crash landing"".