Haldol Decanoate 100 IM

In Depth

This medication may rarely cause a serious condition called neuroleptic malignant syndrome (NMS). Seek immediate medical attention if you develop any of the following symptoms: fever, muscle stiffness, severe confusion, increased sweating, fast/irregular heartbeat.

Tell your doctor immediately if any of these rare but very serious side effects occur:

dark urine
persistent nausea/vomiting
stomach/abdominal pain
yellowing of eyes/skin
seizures
signs of infection (such as fever, persistent sore throat)

Seek immediate medical attention if any of these rare but very serious side effects occur:

slow/fast/irregular heartbeat
severe dizziness
chest pain
fainting

A very severe allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of an allergic reaction include:

rash
itching/swelling (especially of the face/tongue/throat)
severe dizziness
trouble breathing

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Haldol Decanoate 100 IM Precautions

Before using haloperidol, tell your doctor or pharmacist if you are allergic to it; if you are allergic to sesame; or if you have any other allergies.

This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: