BharatNotes Antibiotic
noun; also adjectiveUsage in a UPSC answer
The unregulated, over-the-counter sale of antibiotics in India has accelerated antimicrobial resistance, transforming a once-routine infection into a looming public-health crisis that demands stringent regulation under the National Action Plan.
Synonyms
Antonyms
Word Family
antibiotic (n/adj), antibiotics (n pl), antibiosis (n), probiotic (n/adj), antibiotic-resistant (adj)
Root
Greek anti- = against + bios = life → biōtikos = fit for life; French antibiotique (1850s/1940s)
Etymology
From French antibiotique, from anti- (against) + Greek biōtikos (fit for life, from bios, life); first used in English in the 1850s, with modern medical usage from the 1940s following the development of penicillin.
Memory Hook
Anti (against) + bio (life): an antibiotic works "against the life" of harmful bacteria, killing them off.
How This Word Works in UPSC Writing
A substance that kills bacteria or inhibits their growth, and which has no effect whatever on viruses, a distinction that explains why prescribing antibiotics for viral fevers and colds is both useless and harmful. The mechanism of resistance is the point most often stated wrongly. It is not that a person's body becomes resistant but that the bacterial population evolves, because an incomplete or unnecessary course kills susceptible bacteria and leaves resistant ones to multiply without competition, which is selection pressure rather than adaptation by the patient. Resistance then spreads horizontally between bacterial species through plasmids, so use in poultry and livestock feeds into human clinical resistance, which is why the response is framed through One Health. India's current framework is the National Action Plan on Antimicrobial Resistance 2.0 covering 2025-29, launched on 18-Nov-2025, which replaced the earlier 2017-21 plan.
Don’t Confuse It With
An antibiotic acts on bacteria specifically, while an antimicrobial is the umbrella term covering antivirals, antifungals and antiparasitics as well. Bactericidal agents kill bacteria and bacteriostatic ones only halt multiplication, leaving the immune system to finish. Broad spectrum antibiotics act against many bacterial types and disturb the microbiota more, while narrow spectrum agents target fewer. Antimicrobial resistance is the population-level evolutionary outcome, not a change in the patient.
Hindi Meaning
प्रतिजैविक (pratijaivik) or एंटीबायोटिक; रोगाणुरोधी प्रतिरोध for antimicrobial resistance.
Common Questions
- Do antibiotics work against viruses?
- No. Antibiotics act only on bacteria, so taking them for viral infections such as the common cold gives no benefit and accelerates resistance.
- Why does stopping an antibiotic course early cause resistance?
- Because the susceptible bacteria die first, and stopping early leaves the more resistant survivors to multiply without competition, which selects for a resistant population.
Seen in UPSC Question Papers
- Prelims 2022 — Biology
Real UPSC previous-year questions whose text uses “Antibiotic” — proof this word earns its place on your list.
Tip: press Alt+S to hear pronunciation
