GHS precautionary statement

P331: Do NOT induce vomiting

P331
Response

P331 says: “Do NOT induce vomiting”. It is a response statement. P300 series: what to do after a spill, exposure or fire, including first-aid steps and when to call a poison center or doctor.

About the response group

P300 series: what to do after a spill, exposure or fire, including first-aid steps and when to call a poison center or doctor. See all precautionary statements for the full list.

Hazards that call for P331

The GHS data recommends P331 for these hazard statements.

Code	Statement	Hazard class and category	Signal word
H304	May be fatal if swallowed and enters airways	Aspiration hazard — Category 1	Danger
H305	May be harmful if swallowed and enters airways	Aspiration hazard — Category 2	Warning

Chemicals using P331

5 chemicals in our database. Classification comes from each chemical's primary GHS source, so a supplier's SDS may differ.

Benzene

CAS 71-43-2 · Danger

Cyclohexane

CAS 110-82-7 · Danger

Heptane

CAS 142-82-5 · Danger

Hexane

CAS 110-54-3 · Danger

Toluene

CAS 108-88-3 · Danger

P331 frequently asked questions

What does P331 mean?

P331 says: "Do NOT induce vomiting". It is a response precautionary statement in the Response (P300 series).

Which hazards call for P331?

In the GHS data, P331 is recommended for hazard statements H304, H305.

What type of statement is P331?

P331 is in the Response (P300 series). P300 series: what to do after a spill, exposure or fire, including first-aid steps and when to call a poison center or doctor.

Precautionary statements are general recommendations. Follow the specific instructions on your product's label and safety data sheet.

https://pubchem.ncbi.nlm.nih.gov/ghs/ghscode_10.txt (UN GHS Revision 10, retrieved 2026-10-12)