Quick answers
- What is Cycloserine used for?
- The FDA-approved label (Cycloserine, Dr. Reddys Laboratories, Inc., July 30, 2024) says: “Cycloserine is indicated in the treatment of active pulmonary and extrapulmonary tuberculosis (including renal disease) when the causative organisms are susceptible to this drug and when treatment with the primary medications (streptomycin, isoniazid, rifampin, and ethambutol) has proved inadequate. …” This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.
- Does Cycloserine have a boxed warning?
- No. None of the 1 FDA labels we found for this medicine has a boxed warning.
- Is there a shortage of Cycloserine?
- No current shortage is listed by the FDA for the products of this medicine (FDA data from October 30, 2026).
- Has Cycloserine been recalled?
- No recall linked to the products of this medicine appears in the FDA enforcement reports we use.
- Who makes Cycloserine?
- 1 company lists prescription products of Cycloserine in the FDA NDC Directory, including Dr.Reddys Laboratories Inc.
What Cycloserine is used for
Quoted from the “Indications and Usage” section of the FDA-approved label.
Cycloserine is indicated in the treatment of active pulmonary and extrapulmonary tuberculosis (including renal disease) when the causative organisms are susceptible to this drug and when treatment with the primary medications (streptomycin, isoniazid, rifampin, and ethambutol) has proved inadequate. …
— FDA label: Cycloserine, Dr. Reddys Laboratories, Inc., effective July 30, 2024. Read the full label on DailyMed →
This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.
Boxed warning
A boxed warning (“black box”) is the FDA’s strongest warning on a drug label, for serious or life-threatening risks.
The label quoted above has no boxed warning.
Forms and how it is given
| Dosage forms | Capsule |
|---|---|
| Route | Oral |
| Prescription products | 1 in the FDA NDC Directory |
Companies that list this medicine
Labelers in the FDA NDC Directory: the company named on the package (maker or distributor), with the number of prescription products.
- Dr.Reddys Laboratories Inc1 product
FDA approval history
- ANDA: Abbreviated New Drug Application: how a generic version is approved.
Generic approvals (1)
- ANDA060593Pharmazone · June 29, 1964
Shortage status
The FDA drug shortage list does not show these products.
Recalls
No recall linked to these products (by their NDC code) appears in the FDA enforcement reports.
Official identifiers
| RxCUI (RxNorm) | 197551 |
|---|---|
| SPL set ID of the quoted label | 8e7e2665-7a3d-3f54-9f92-5fe845f02ef9 |
| FDA labels (SPL) | 1 |
| FDA applications | 1 ANDA |
| Active ingredients (FDA) | CYCLOSERINE |
Sources
- FDA-approved label on DailyMed (National Library of Medicine) — Cycloserine, Dr. Reddys Laboratories, Inc., effective July 30, 2024; via openFDA, FDA data exported October 30, 2026, retrieved October 31, 2026
- NDC Directory (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
- Drugs@FDA (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
- Drug recall enforcement reports (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 27, 2026, retrieved October 31, 2026
- Drug shortages (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
openFDA data is provided by the FDA as is; it may be incomplete. Always rely on the label that comes with your medicine. FDA Enforcement Report search →