Related Clues:

• 1/16 of a pound
• One-eighth of a cup
• Small bit of booze
• Unit of prevention
• "An ___ of prevention ..."
• About 28 grams
• Prevention measure
• Sixteen drams
• Small amount of liquid
• Wee bit o' Dewar's, say
• Proverbial prevention portion
• Three scruples
• Small weight
• Imperial weight
• Apothecaries unit