Rendering conspicuous liquid medicaments which are conventionally supplied as colorless liquids. A coloring agent may be added to the conventionally colorless liquid. Where different liquid medicaments are supplied, coloring agents of different hues may be added to the respective different liquid medicaments. A syringe for dispensing liquids may be provided with a temperature responsive device which changes in appearance so as to indicate level of liquid medicament loaded thereinto, responsively to temperature of the liquid medicament.