United States
Hong KongClass I, Class II, and Class III Drug Recalls
FDA classifies recalls by risk: Class I means a reasonable probability of serious adverse health consequences or death; Class II may cause temporary or medically reversible effects, or serious harm is remote; Class III is not likely to cause adverse health consequences.
- The recall notice identifies the affected product, lots, distribution level, and required action.
On this page4 sections
A recall class describes the potential health risk of a violative product. It does not tell the pharmacy which lots are affected or replace the instructions in the specific recall notice. Learn the definitions and then apply them to the product and action described in the notice.
The three classes
| Class | FDA risk definition | How to interpret it |
|---|---|---|
| I | There is a reasonable probability that use of or exposure to the violative product will cause serious adverse health consequences or death. | Highest severity. Respond urgently and follow the specific notice, including any patient or prescriber communication instructions. |
| II | Use may cause temporary or medically reversible adverse health consequences, or the probability of serious adverse health consequences is remote. | Lower risk than Class I does not mean no action. Follow the notice, and refer treatment questions to the pharmacist or prescriber. |
| III | Use is not likely to cause adverse health consequences. | The health risk is lower, but the pharmacy still follows the recall notice for affected inventory. |
The class reflects the health hazard, not the number of units, geographic reach, or distribution level. A large recall can be Class III; a small recall can be Class I. FDA assigns the classification based on the hazard evaluation.
Most candidates learn Class II as "temporary or reversible harm" and stop. The definition also covers the case where serious harm is possible but remote, and questions are written to that second limb precisely because it is the half people skip.
The ordering is severity, not size
A class describes how dangerous the defect is, not how many units are affected or how widely they were distributed.
A nationwide recall of a product that is unlikely to cause harm can be Class III. A recall affecting a small number of packages can be Class I if exposure could cause serious harm or death.
Related terms worth separating
- A market withdrawal involves a minor violation not subject to FDA legal action, or no violation at all
- A stock recovery concerns product that has not left the manufacturer's control
- A recall is a firm's removal or correction of a marketed product
A market withdrawal may involve a minor violation that would not ordinarily trigger FDA legal action. A stock recovery concerns product that has not left the manufacturer’s control. A recall involves removal or correction of a marketed product. The notice and applicable regulation determine which term fits.
What the technician does
The class gives a risk signal; the notice gives the operational instructions. Match the drug, dosage form, strength, NDC, lot, and expiration date. Stop dispensing affected stock when directed, physically separate it, search all pharmacy storage locations, follow return or disposal instructions, and record what was found and done. The separate recall-handling guide walks through that workflow. Refer clinical questions or uncertainty about patient contact to the pharmacist.
Common questions
What are the FDA recall classes?
Class I, II, and III, graded by potential health harm under FDA recall definitions.
What is a Class I recall?
A reasonable probability that use of or exposure to the product will cause serious adverse health consequences or death.
What does Class II cover?
Use may cause temporary or medically reversible harm, or the probability of serious adverse health consequences is remote.
Does the class depend on how many units are affected?
No. It grades the severity of the hazard, not the size of the recall.
What is a market withdrawal?
A market withdrawal may involve a minor violation that would not ordinarily trigger FDA legal action. A stock recovery concerns product that has not left the manufacturer’s control.