Possible Clues:

• Drug
• Resinous product of hemp smoked as drug
• This will get him into the habit of not dropping his aitches
• Experiences the man's had with hard drug
• The drug that's cured him of dropping his aitches
• Intoxicant
• Hallucinogenic extract of hemp
• Hemp hallucinogen
• Does the man's little hospital have drug?
• Hemp drug