Independent register of U.S. FDA drug recalls · updated Oct 10, 2026
RxRecalls Get alerts
Class III · Low risk Terminated Initiated Jan 28, 2016 (11 years ago)

Clonazepam Tablets

Class III — Low risk. Unlikely to cause harm, but violates FDA regulations.

Why it was recalled

Failed Impurities/Degradation Specifications: out of specification result for known impurity at 6 month timepoint.

Cause type: Impurity / degradation

An impurity or degradation product above its limit - other than nitrosamines. Unexpected substances in a batch can make it unsafe or less effective, even when the active ingredient is present. All impurity / degradation recalls.

What was recalled

Clonazepam Tablets, USP, 0.5 mg, 100-count carton, Rx only, Manufactured by Mylan Pharmaceuticals Inc., Morgantown, WV, 26505, NDC:51079-881-21

Affected NDC 51079-0881-21

Compare with the code on your package — it is the most precise check available.

Drug: Clonazepam Category: Mental Health Medication

Recalling firm
Mylan Institutional, Inc. (d.b.a. UDL Laboratories)
Origin
IL, United States
Initiated by
Voluntary: Firm initiated
FDA recall number
D-0650-2016 · FDA notice

Low risk, still worth a check. Class III means the product is unlikely to cause harm but breaks an FDA rule (often labeling). If your lot matches, your pharmacy will normally swap it; there is no need for alarm. This recall is now terminated, which means the firm has finished removing the affected product; anything on pharmacy shelves today should be unaffected.

Other Clonazepam recalls

See all
Class I · High risk

Clonazepam Orally Disintegrating Tablets

Labeling: Label Error on Declared Strength; Some cartons were incorrectly labeled. The blister strips inside the product carton reflect the correct strength.

Ongoing Labeling / mix-up Endo USA, Inc. D-0181-2025
Class I · High risk

Clonazepam Orally Disintegrating Tablets

Labeling: Label Error on Declared Strength; Some cartons were incorrectly labeled. The blister strips inside the product carton reflect the correct strength.

Ongoing Labeling / mix-up Endo USA, Inc. D-0180-2025
Class I · High risk

Clonazepam Orally Disintegrating Tablets

Labeling: Label Error on Declared Strength; Some cartons were incorrectly labeled. The blister strips inside the product carton reflect the correct strength.

Ongoing Labeling / mix-up Endo USA, Inc. D-0179-2025
Class I · High risk

Clonazepam Orally Disintegrating Tablet

Labeling: Label Error on Declared Strength; Some cartons were incorrectly labeled. The blister strips inside the product carton reflect the correct strength.

Ongoing Labeling / mix-up Endo USA, Inc. D-0178-2025
Class I · High risk

Clonazepam Orally Disintegrating Tablets

Labeling: Label Error on Declared Strength; Some cartons were incorrectly labeled as 0.125 mg instead of 0.25 mg. The blister strips inside the product carton reflect the correct strength of 0.25 mg.

Terminated Labeling / mix-up Endo Pharmaceuticals, Inc. NDC 49884-306-02 D-0622-2024

Other recalls by Mylan Institutional, Inc. (d.b.a. UDL Laboratories)

All 2016 recalls