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Vistaril Injection Dosage

Medically reviewed by Last updated on June 15, 2020.

Generic name: hydroxyzine hydrochloride 50mg in 1mL
Dosage form: intramuscular injection

The recommended dosages for VISTARIL (hydroxyzine hydrochloride) Intramuscular Solution are:

For adult psychiatric and emotional emergencies, including acute alcoholism. IM: 50–100 mg stat., and q. 4–6h., p.r.n.
Nausea and vomiting excluding nausea and vomiting of pregnancy. Adults: 25–100 mg IM
Children: 0.5 mg/lb body weight IM
Pre- and postoperative adjunctive medication. Adults: 25–100 mg IM
Children: 0.5 mg/lb body weight IM
Pre- and postpartum adjunctive therapy. 25–100 mg IM

As with all potent medications, the dosage should be adjusted according to the patient's response to therapy.

FOR ADDITIONAL INFORMATION OF THE ADMINISTRATION AND SITE OF SELECTION SEE PRECAUTIONS SECTION. NOTE: VISTARIL (hydroxyzine hydrochloride) Intramuscular Solution may be administered without further dilution.

Patients may be started on intramuscular therapy when indicated. They should be maintained on oral therapy whenever this route is practicable.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.