HOW TO USE: This medication is usually given by injection into a muscle by a healthcare professional. Your dose may be repeated as necessary to keep your symptoms under control. Dosage is based on your condition and response to therapy.This medication may also be given by injection into a vein. Follow all instructions for proper mixing and dilution with the correct IV fluids. If this drug is given by injection into a vein, your healthcare professional should monitor you closely (see also Side Effects section). If you have questions regarding the use of this medication, consult your pharmacist.Before injecting each dose, clean the injection site with rubbing alcohol. Before using, check this medication visually for particles. If any are present, do not use the liquid.This medication is intended for the short-term control of your symptoms. If you require continuous treatment for your condition, your doctor may switch you to another form of haloperidol or to a different medication. The switch will usually occur within 12-24 hours from your last injection with this form of haloperidol.Learn how to store and discard needles and medical supplies safely. Consult your pharmacist.Inform your doctor if your symptoms do not improve or if they worsen.
SIDE EFFECTS: Dizziness, drowsiness, difficulty urinating, trouble sleeping, headache, anxiety, and pain at the injection site may occur. If these effects persist or worsen, notify your doctor or pharmacist promptly.Tell your doctor promptly if any of these side effects occur: muscle spasm/stiffness, shaking (tremor), restlessness, mask-like facial expression, drooling. Your doctor may prescribe another medication for you to take with haloperidol to decrease these side effects.Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.In rare cases, haloperidol may increase your level of a certain chemical made by the body (prolactin). For females, this increase in prolactin may result in unwanted breast milk, missed/stopped periods, or difficulty becoming pregnant. For males, it may result in decreased sexual ability, inability to produce sperm, or enlarged breasts. If you develop any of these symptoms, tell your doctor immediately.For males, in the unlikely event you have a painful or prolonged erection (lasting more than 4 hours), stop using this drug and seek immediate medical attention, or permanent problems may occur.This medication may rarely cause a condition known as tardive dyskinesia. In some cases, this condition may be permanent. Tell your doctor immediately if you develop any facial/muscle twitching such as tongue thrusting, chewing movements, puffing or puckering of your mouth, or uncontrollable shaking.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).Serious, even fatal heart problems may occur, especially when haloperidol is given by injection into a vein or in high doses. 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.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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