sugar pill

Word family

• placebo
  nounB2
• placebo effect
  nounC1

Synonym discussion

Sense: noun/1

These terms all refer to a treatment with no active medical ingredient, but they differ in formality and context. 'Placebo' is the broadest and most formal term, used across medical research and clinical practice; it does not necessarily imply the patient is deceived — some placebos are given openly. 'Sugar pill' is informal and strongly suggests that the recipient believes they are getting real medicine; it is rarely used in scientific papers. 'Dummy pill' is also informal but more common in the context of blind trials, where the 'dummy' is indistinguishable from the real drug. For example, a research report might say 'patients received either the drug or a placebo,' while a conversation between nurses might refer to 'the dummy pills in the control group.'

Common collocations

Etymology

The compound noun 'sugar pill' dates back to the early 20th century, formed from 'sugar' (from Old French 'sucre', from Arabic 'sukkar') and 'pill' (from Latin 'pilula', meaning 'little ball'). It originally referred literally to a medicinal pill made of sugar, but came to mean a placebo as doctors observed that patients sometimes responded to sugar pills the same way they responded to real drugs.