Independent register of U.S. FDA drug recalls · updated Oct 10, 2026
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Class I · High risk Terminated Initiated Mar 23, 2020 (7 years ago)

Tetracycline HCL Capsules (Tetracycline Hydrochloride)

Class I — High risk. Reasonable probability of serious harm or death.

Why it was recalled

Failed Dissolution Specifications: Out of specification result during long term testing in Tetracycline HCl capsules.

Cause type: Dissolution failure

The tablet or capsule did not dissolve within specification. Dissolution controls how much drug the body absorbs; a failure can change the effective dose. All dissolution failure recalls.

What was recalled

Tetracycline HCL Capsules, USP, 500 mg, 100-count Bottle, Rx Only, Manufactured for: Heritage Pharmaceuticals Inc. East Brunswick NJ 08816. NDC 23155-018-01

Affected NDC 23155-0018-01

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

Drug: Tetracycline

Product details

From the FDA NDC directory, for the product code this recall names. Compare with the label on your package.

ProductStrengthForm & routeLabelerType
tetracycline hydrochloride
NDC 23155-0018
500 mg/1 Capsule
Oral
Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc. Rx
Recalling firm
Avet Pharmaceuticals, Inc.
NDC code
23155-018-01
Origin
NJ, United States
Initiated by
Voluntary: Firm initiated
FDA recall number
D-1254-2020 · FDA notice

Treat this as urgent. Class I means FDA judged there is a reasonable probability of serious harm. Find the lot number on your package; if it matches the recalled lots, do not take another dose before you have spoken to your pharmacist or prescriber - today, not next week. This recall is now terminated, which means the firm has finished removing the affected product; anything on pharmacy shelves today should be unaffected.

Other Tetracycline recalls

See all
Class I · High risk

Tetracycline HCL Capsules

Failed Dissolution Specifications: Out of specification result during long term testing in Tetracycline HCl capsules.

Terminated Dissolution failure Avet Pharmaceuticals, Inc. NDC 23155-017-01 D-1255-2020
Class II · Moderate risk

Tetracycline HCl active pharmaceutical ingredient packaged in…

Penicillin Cross Contamination: All lots of all products repackaged and distributed between 01/05/12 and 02/12/15 are being recalled because they were repackaged in a facility with penicillin products without adequate separation which could introduce the potential for cross contamination with penicillin.

Terminated Cross-contamination Attix Pharmaceuticals D-924-2015

Other recalls by Avet Pharmaceuticals, Inc.

All 2020 recalls
Class II · Moderate risk

Losartan Potassium Tablets USP 100 mg

CGMP Deviations: FDA lab confirmed presence of an impurity, N-Methylnitrosobutyric acid (NMBA) in the finished product above the interim acceptable daily intake level

Terminated Nitrosamine impurity Avet Pharmaceuticals, Inc. NDC 23155-646-03 D-1104-2020
Class II · Moderate risk

Losartan Potassium Tablets USP 50 mg

CGMP Deviations: FDA lab confirmed presence of an impurity, N-Methylnitrosobutyric acid (NMBA) in the finished product above the interim acceptable daily intake level

Terminated Nitrosamine impurity Avet Pharmaceuticals, Inc. NDC 23155-645-03 D-1103-2020
Class I · High risk

Tetracycline HCL Capsules

Failed Dissolution Specifications: Out of specification result during long term testing in Tetracycline HCl capsules.

Terminated Dissolution failure Avet Pharmaceuticals, Inc. NDC 23155-017-01 D-1255-2020