erythromycin
C2Technical/Medical
Definition
Meaning
A broad-spectrum antibiotic derived from the bacterium Streptomyces erythreus, used to treat various bacterial infections.
A macrolide-class antibiotic that inhibits bacterial protein synthesis, commonly used as an alternative for patients allergic to penicillin.
Linguistics
Semantic Notes
The term refers specifically to a chemical compound with a defined pharmacological action. It is not a generic term for 'antibiotic'.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or usage differences. Spelling and pronunciation are standardised in medical contexts.
Connotations
No differential connotations; purely clinical in both dialects.
Frequency
Used with identical frequency in medical and pharmaceutical contexts in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
The doctor prescribed erythromycin FOR the infection.The patient was treated WITH erythromycin.Erythromycin is effective AGAINST streptococci.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “None. It is a technical term with no idiomatic usage.”
Usage
Context Usage
Business
Used in pharmaceutical manufacturing, marketing, and regulatory documents.
Academic
Common in medical, pharmacological, and microbiology research papers and textbooks.
Everyday
Used primarily when discussing a specific prescribed medication with a doctor or pharmacist.
Technical
The primary register. Used in clinical notes, drug formularies, and scientific literature.
Examples
By Part of Speech
verb
British English
- The infection did not erythromycin. (No verb form exists)
- The doctor decided to erythromycin the patient. (No verb form exists)
American English
- They attempted to erythromycin the outbreak. (No verb form exists)
- You cannot erythromycin a virus. (No verb form exists)
adverb
British English
- The bacteria reacted erythromycinly. (No adverb form exists)
- He recovered erythromycinly fast. (No adverb form exists)
American English
- The treatment worked erythromycinly well. (No adverb form exists)
- She responded erythromycinly. (No adverb form exists)
adjective
British English
- The erythromycin prescription was for two weeks.
- She experienced an erythromycin-related side effect.
American English
- The erythromycin formulation is a suspension.
- We reviewed the erythromycin sensitivity data.
Examples
By CEFR Level
- The doctor gave me medicine called erythromycin.
- I take erythromycin for my ear infection.
- My son was prescribed erythromycin for his chest infection.
- If you are allergic to penicillin, you might take erythromycin instead.
- The standard first-line treatment for pertussis in infants is a course of erythromycin.
- Due to its gastrointestinal side effects, erythromycin is often taken with food.
- Erythromycin, by binding to the 50S ribosomal subunit, inhibits translocation during protein synthesis.
- The emergence of erythromycin-resistant strains of Streptococcus pyogenes has necessitated alternative therapeutic strategies.
Learning
Memory Aids
Mnemonic
Think: 'ERYTHRO' (red, as the source bacterium produces a red pigment) + 'MYCIN' (a common suffix for antibiotics, like in streptomycin).
Conceptual Metaphor
A KEY that blocks the bacterial PROTEIN FACTORY.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'эритромицин' (the direct transliteration, which is correct). Avoid literal translation like 'красный мицин'. It is a standardised international nonproprietary name (INN).
Common Mistakes
- Misspelling: 'erithromycin', 'erytromycin'. Mispronunciation: stressing the first syllable (/ˈɛrɪθ-/). Using it as a countable noun without an article ('He takes erythromycin').
Practice
Quiz
Erythromycin belongs to which class of antibiotics?
FAQ
Frequently Asked Questions
No, erythromycin is not a penicillin. It is a macrolide antibiotic and is often used for patients with penicillin allergies.
It is used for respiratory tract infections, skin infections, chlamydia, and as a preoperative bowel preparation, among other uses.
No, antibiotics like erythromycin are ineffective against viral infections. Their misuse for viral illnesses contributes to antibiotic resistance.
Common side effects include nausea, vomiting, diarrhoea, and abdominal pain. It can also cause QT interval prolongation in some patients.
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