Independent register of U.S. FDA drug recalls · updated Oct 10, 2026
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Class I · High risk Terminated Initiated May 23, 2022 (4 years ago)

Tegsedi (inotersen)

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

Why it was recalled

Superpotent: High Out of specification (OOS) test result for percent label claim (%LC).

Cause type: Wrong potency / content

Sub- or super-potent product, or a failed content-uniformity / assay test. You may receive too little or too much active ingredient - a direct dosing risk. All wrong potency / content recalls.

What was recalled

Tegsedi (inotersen) Injection 284 mg/1.5 mL, Rx Only, Sterile solution for Subcutaneous Use, 4 prefilled syringes, each containing 284 mg of inotersen, (equivalent to 300 mg inotersen sodium in 1.5 ml of solution), Distributed by Sobi, Inc. Inc Waltham MA 02451, NDC: 72126-007-01

Affected NDC 72126-0007-01

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

Recalling firm
Akcea Therapeutics, Inc.
Origin
CA, United States
Initiated by
Voluntary: Firm initiated
FDA recall number
D-1166-2022 · 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 wrong potency / content recalls from 2022

All wrong potency / content recalls
Class II · Moderate risk

Sensorcaine-MPF

Subpotent Drug: Testing results below the defined limit for the epinephrine portion of this product.

Terminated Wrong potency / content Fresenius Kabi USA, LLC NDC 63323-468-01 D-0129-2023