Antimycobacterial

Where is Isoniazid made?

8 companies sell it under their own name and 19 repackagers rebottle it. Their labels name 1 factory in Japan.

Japan 1
Japan: 1

Companies and their factories

Company on the labelFactoryWhereLast FDA inspection
CMP Pharma, Inc.50 mg per 5 mL · NDC 46287-009 Yuki Gosei Kogyo Co., Ltd.Makes the active ingredient Iwaki, JapanProblems found, fixed voluntarilyFeb 2026
Chartwell RX, LLC.50 mg per 5 mL, 300 mg · NDC 62135-709, 62135-550The label doesn't name the factory. Plants this company names for other drugs
Genus Lifesciences Inc.100 mg, 300 mg · NDC 64950-216, 64950-217The label doesn't name the factory. Plants this company names for other drugs
Marlex Pharmaceuticals, Inc.100 mg, 300 mg · NDC 10135-804, 10135-584, 10135-805The label doesn't name the factory. Plants this company names for other drugs
Omnivium Pharmaceuticals Llc.100 mg, 300 mg · NDC 81665-107, 81665-108The label doesn't name the factory. Plants this company names for other drugs
Sandoz Inc.100 mg per 1 mL · NDC 0781-3056The label doesn't name the factory. Plants this company names for other drugs
Teva Pharmaceuticals USA, Inc.100 mg, 300 mg · NDC 0555-0066, 0555-0071The label doesn't name the factory. Plants this company names for other drugs
VersaPharm Incorporated100 mg, 300 mg · NDC 61748-016, 61748-013The label doesn't name the factory. Plants this company names for other drugs

Repackaged by

These companies buy Isoniazid in bulk and rebottle it, often for mail-order, clinic or hospital pharmacies. If your bottle shows one of these names, open its NDC to see who made the pills inside.

Recalls

Class I recalls are the most serious; Class III the least. A recall covers specific lots, listed on each recall.