For His Son

A father, anxious for his son's financial well being, develops a special soda pop called Dopokoke which is laced with cocaine. Dopokoke is advertised as relief "for that tired feeling." The drink is a success, but the son becomes addicted to it, much to his father's regret. Loosely based on the allegations that the Coca-Cola company and other soft drink manufacturers laced their soda with dope.

• D.W. GriffithDirector
• Emmett C. HallWriter

• Charles Hill MailesThe Father, a Physician
• Charles WestThe Son
• Blanche SweetThe Son's Fiancée
• Dorothy BernardThe Secretary
• Robert HarronAt Soda Fountain
• Dell HendersonDopokoke Factory Employee (uncredited)
• Walter HiersAt Soda Fountain (uncredited)
• Alfred PagetDopokoke Factory Employee (uncredited)
• Kate ToncrayAt Soda Fountain (uncredited)
• Grace HendersonThe Landlady
• William BechtelDopokoke Factor Employee
• Christy CabanneOne of the Son's Friends / At Soda Fountain