Related Clues:

• Pub shot
• Eighth of a fluid ounce
• Precious metal unit
• Pharmacy unit
• Smallish weight measurement
• Prevention amount?
• Slightest bit
• One-eighth of a fluid ounce
• Shot-glass quantity
• Fluid measure
• Fraction of an ounce
• Sixteenth of a pound
• Bit of prevention?
• Measure of prevention or strength?
• Wee weight