Generic name: Prochlorperazine Injection [ proe-klor-PER-a-zeen ]
Drug classes: Phenothiazine antiemetics, Phenothiazine antipsychotics
Medically reviewed by Drugs.com. Last updated on Feb 3, 2023.
- There is a higher chance of death in older adults who take prochlorperazine injection for mental problems caused by dementia. Most of the deaths were linked to heart disease or infection. This medicine is not approved to treat mental problems caused by dementia.
Uses of Prochlorperazine Injection:
- It is used to treat upset stomach and throwing up.
- It is used to treat schizophrenia.
- It may be given to you for other reasons. Talk with the doctor.
What do I need to tell my doctor BEFORE I take Prochlorperazine Injection?
For all patients taking prochlorperazine injection:
- If you are allergic to prochlorperazine injection; any part of prochlorperazine injection; or any other drugs, foods, or substances. Tell your doctor about the allergy and what signs you had.
- If you have Reye's syndrome.
- If you are very sleepy.
- If you have recently drunk a lot of alcohol or taken a big amount of drugs that may slow your actions like phenobarbital or some pain drugs like oxycodone.
- If your child has had recent surgery.
- If your child is younger than 2 years of age. Do not give prochlorperazine injection to a child younger than 2 years of age.
- If your child weighs less than 20 pounds (9 kilograms). Do not give to a child who weighs less than 20 pounds (9 kilograms).
This is not a list of all drugs or health problems that interact with prochlorperazine injection.
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take prochlorperazine injection with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
What are some things I need to know or do while I take Prochlorperazine Injection?
- Tell all of your health care providers that you take prochlorperazine injection. This includes your doctors, nurses, pharmacists, and dentists.
- Avoid driving and doing other tasks or actions that call for you to be alert until you see how prochlorperazine injection affects you.
- To lower the chance of feeling dizzy or passing out, rise slowly if you have been sitting or lying down. Be careful going up and down stairs.
- Low blood pressure has happened with drugs like this one. Sometimes, this has been deadly. Talk with the doctor.
- Talk with your doctor before you drink alcohol or use other drugs and natural products that slow your actions.
- Be careful in hot weather or while being active. Drink lots of fluids to stop fluid loss.
- Low white blood cell counts have happened with drugs like this one. This may lead to a higher chance of infection. Rarely, infections have been deadly. Tell your doctor if you have ever had a low white blood cell count. Call your doctor right away if you have signs of infection like fever, chills, or sore throat.
- Have blood work checked as you have been told by the doctor. Talk with the doctor.
- This medicine may affect certain lab tests. Tell all of your health care providers and lab workers that you take prochlorperazine injection.
- Dizziness, sleepiness, and feeling less stable may happen with prochlorperazine injection. These may lead to falling, which can cause broken bones or other health problems.
- Call your doctor right away if you have signs of liver problems like dark urine, feeling tired, not hungry, upset stomach or stomach pain, light-colored stools, throwing up, or yellow skin or eyes.
- If you also take lithium, talk with your doctor. A few people who took lithium along with a drug like this one had severe side effects and lasting brain damage.
- This medicine may cause the results of some pregnancy tests to be wrong. Talk with the doctor.
- Use with care in children. Talk with the doctor.
- If you are 65 or older, use prochlorperazine injection with care. You could have more side effects.
- Tell your doctor if you are pregnant, plan on getting pregnant, or are breast-feeding. You will need to talk about the benefits and risks to you and the baby.
- Taking prochlorperazine injection in the third trimester of pregnancy may lead to uncontrolled muscle movements and withdrawal in the newborn.
How is this medicine (Prochlorperazine Injection) best taken?
Use prochlorperazine injection as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- It is given as a shot into a muscle or vein.
What do I do if I miss a dose?
- Call your doctor to find out what to do.
What are some side effects that I need to call my doctor about right away?
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Trouble controlling body movements, twitching, change in balance, trouble swallowing or speaking.
- Very bad dizziness or passing out.
- Chest pain or pressure.
- Fast or abnormal heartbeat.
- Feeling confused.
- Mental, mood, or behavior changes that are new or worse.
- Trouble sleeping.
- Shakiness, trouble moving around, or stiffness.
- Swelling in the arms or legs.
- Change in eyesight.
- Any unexplained bruising or bleeding.
- Trouble passing urine.
- Feeling very tired or weak.
- Ejaculation problems.
- Enlarged breasts, nipple discharge, not able to get or keep an erection (in males), or period (menstrual) changes (in females).
- A very bad and sometimes deadly health problem called neuroleptic malignant syndrome (NMS) may happen. Call your doctor right away if you have any fever, muscle cramps or stiffness, dizziness, very bad headache, confusion, change in thinking, fast heartbeat, heartbeat that does not feel normal, or are sweating a lot.
- Some people may get a severe muscle problem called tardive dyskinesia. This problem may lessen or go away after stopping prochlorperazine injection, but it may not go away. The risk is greater with diabetes and in older adults, especially older women. The risk is greater with longer use or higher doses, but it may also occur after short-term use with low doses. Call your doctor right away if you have trouble controlling body movements or problems with your tongue, face, mouth, or jaw like tongue sticking out, puffing cheeks, mouth puckering, or chewing.
What are some other side effects of Prochlorperazine Injection?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Feeling nervous and excitable.
- Dry mouth.
- Feeling sleepy.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-332-1088. You may also report side effects at https://www.fda.gov/medwatch.
If OVERDOSE is suspected:
If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
How do I store and/or throw out Prochlorperazine Injection?
- If you need to store prochlorperazine injection at home, talk with your doctor, nurse, or pharmacist about how to store it.
Consumer Information Use and Disclaimer
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else's drugs.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
- Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about prochlorperazine injection, please talk with your doctor, nurse, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
More about prochlorperazine
- Check interactions
- Compare alternatives
- Pricing & coupons
- Reviews (456)
- Drug images
- Latest FDA alerts (2)
- Side effects
- Dosage information
- Patient tips
- During pregnancy
- Drug class: phenothiazine antiemetics
- Drug Information
- Prochlorperazine rectal
- Prochlorperazine (Oral) (Advanced Reading)
- Prochlorperazine (Rectal) (Advanced Reading)
- Prochlorperazine Suppositories
- Prochlorperazine Tablets
Related treatment guides
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.