Who are Isoniazid (H)'s main competitors?

Direct comparators (same drug class / molecular target / therapeutic area): Pyrazinamide (Z).

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Every 30 minutes from primary sources (FDA, EMA, MHRA, PMDA, ClinicalTrials.gov, USPTO). Subscribe to the RSS feed below for push alerts.

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Last reviewed 2026-06-10 · How we verify

Isoniazid (H) — Competitive Intelligence Brief

Name: Drug Landscape Pharmaceutical Database
Creator: Drug Landscape
Published: 2026-01-01
License: https://creativecommons.org/licenses/by/4.0/

Isoniazid (H) (Isoniazid (H)) competitive landscape: 1 comparator, recent regulatory actions, upcoming PDUFA, patent timeline. Class: Nicotinamide analog; first-line antituberculous agent. Area: Infectious Disease.

phase 3 Nicotinamide analog; first-line antituberculous agent Enoyl-ACP reductase (InhA); catalase-peroxidase (KatG) Infectious Disease Small molecule Live · refreshed every 30 min

Target snapshot

Isoniazid (H) (Isoniazid (H)) — University College, London. Isoniazid inhibits mycobacterial cell wall synthesis by blocking mycolic acid production, which is essential for Mycobacterium tuberculosis survival.

Comparator set (1 drugs)

Auto-detected by same drug class / molecular target / therapeutic area, ranked by phase + recency. Override with ?vs=slug1,slug2,….

Drug	Generic	Sponsor	Phase	Class	Target	Approval / PDUFA
Isoniazid (H) TARGET	Isoniazid (H)	University College, London	phase 3	Nicotinamide analog; first-line antituberculous agent	Enoyl-ACP reductase (InhA); catalase-peroxidase (KatG)
Pyrazinamide (Z)	Pyrazinamide (Z)	Global Alliance for TB Drug Development	phase 3	Nicotinamide analog; antituberculous agent	Pantothenate synthetase (PanC); pyrazinamidase activation

Recent regulatory actions (last 90 days)

No regulatory actions in the last 90 days for this set.

Upcoming PDUFA dates (next 180 days)

No PDUFA dates in the next 180 days for this set.

Patent timeline (forward window)

No upcoming patent expiries for this set.

Sponsor landscape (Nicotinamide analog; first-line antituberculous agent class)

University College, London · 1 drug in this class

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Cite this brief

Drug Landscape (2026). Isoniazid (H) — Competitive Intelligence Brief. https://druglandscape.com/ci/isoniazid-h. Accessed 2026-06-10.

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Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing