LingvoCore.com

isoniazid

C2
UK/ˌaɪsə(ʊ)ˈnaɪəzɪd/US/ˌaɪsoʊˈnaɪəzɪd/

Technical, Medical

My Flashcards

Definition

Meaning

A synthetic compound used as a primary antibiotic in the treatment and prevention of tuberculosis.

A first-line antituberculosis medication, often used in combination with other drugs like rifampicin, pyrazinamide, and ethambutol. It is a prodrug activated by bacterial enzymes.

Linguistics

Semantic Notes

The term is highly domain-specific to medicine, particularly pulmonology, infectious disease, and public health. It is not used metaphorically.

Dialectal Variation

British vs American Usage

Differences

No significant differences in meaning or usage. Spelling and pronunciation are consistent.

Connotations

Purely clinical and pharmaceutical in both varieties.

Frequency

Extremely rare in general discourse. Frequency is identical and confined to medical contexts.

Vocabulary

Collocations

strong
prescribe isoniazidisoniazid therapyisoniazid prophylaxisisoniazid resistanceisoniazid and rifampin
medium
take isoniaziddose of isoniazidtreatment with isoniazidreact to isoniazidisoniazid tablet
weak
effective isoniazidstandard isoniazidisoniazid regimenisoniazid side effectmonitor isoniazid

Grammar

Valency Patterns

[Patient] was prescribed isoniazid for [duration].[Doctor] initiated isoniazid prophylaxis for [contact].Resistance to isoniazid is developing.

Vocabulary

Synonyms

Neutral

INH

Weak

antitubercular agenttuberculostatic

Usage

Context Usage

Academic

Used in medical research papers, pharmacology textbooks, and public health reports on tuberculosis control.

Everyday

Virtually never used in everyday conversation outside of a patient's direct medical experience.

Technical

Core terminology in clinical guidelines, prescription charts, microbiology (describing resistance), and pharmacy.

Examples

By CEFR Level

B1
  • The doctor gave her medicine for tuberculosis.
B2
  • The standard treatment for active TB includes a drug called isoniazid.
  • Patients on isoniazid must be monitored for potential side effects.
C1
  • Isoniazid prophylaxis is recommended for close contacts of patients with infectious pulmonary tuberculosis.
  • The emergence of multidrug-resistant strains, including isoniazid-resistant M. tuberculosis, poses a significant public health challenge.

Learning

Memory Aids

Mnemonic

Think: 'I SO need AZID' to fight TB. 'ISO' sounds like 'isolate' (the bacteria), 'NIA' reminds of 'pneumonia' (lung infection), and 'ZID' is a common drug suffix.

Watch out

Common Pitfalls

Translation Traps (for Russian speakers)

  • Do not confuse with 'изониазид' – it is a direct transliteration with identical meaning.
  • Avoid attempting a descriptive translation; the drug has only this specific name.

Common Mistakes

  • Misspelling: 'isoniazide' (incorrect addition of 'e').
  • Mispronunciation: placing stress on the first syllable (/ˈaɪsəʊnaɪəzɪd/). Correct stress is on the third syllable.

Practice

Quiz

Fill in the gap
The first-line regimen for tuberculosis typically includes , rifampin, pyrazinamide, and ethambutol.
Multiple Choice

What is the primary clinical use of isoniazid?

FAQ

Frequently Asked Questions

No, it is almost always used in combination with other antituberculosis drugs to prevent the development of drug resistance.

Hepatitis (liver inflammation) is a serious potential side effect. Peripheral neuropathy is also common, which is why vitamin B6 (pyridoxine) is often co-prescribed.

Yes, it is used as preventive therapy (chemoprophylaxis) for individuals who have been exposed to TB or have latent TB infection, to prevent it from developing into active disease.

INH is a common abbreviation for isoniazid, derived from its older chemical name 'isonicotinic acid hydrazide'.