Description and Brand Names

Drug information provided by: Micromedex

US Brand Name

  1. Antinaus 50
  2. Phenergan
  3. Promacot
  4. Prorex

Descriptions


Promethazine injection is used to relieve or prevent some types of allergy or allergic reactions. It works by preventing the effects of a substance called histamine, which is produced by the body. Histamine can cause itching, sneezing, runny nose, and watery eyes. It can sometimes close up the bronchial tubes (air passages of the lungs) and make breathing difficult.

Promethazine is also used to prevent and control motion sickness, nausea, vomiting, and dizziness. In addition, it may be used to help people go to sleep and control their pain or anxiety before or after surgery or other procedures.

Promethazine may also be used for other conditions as determined by your doctor.

This medicine is only available with your doctor's prescription.

This product is available in the following dosage forms:

  • Solution

Before Using

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:

Allergies

Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

Pediatric

Appropriate studies have not been performed on the relationship of age to the effects of promethazine injection in the pediatric population. Use of promethazine injection is not recommended in children younger than 2 years of age because of the increased risk of respiratory depression. Caution should be used when this medicine is given to children 2 years of age and older.

Geriatric

Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of promethazine injection in the elderly. However, elderly patients may be more sensitive to the side effects of this medicine than in younger adults, and are more likely to have age-related heart or blood vessel disease or prostate problems, which may require an adjustment in the dose for patients receiving promethazine injection.

Pregnancy

Information about this promethazine-injection-route-intravenous-route
Pregnancy Category Explanation
All Trimesters C Animal studies have shown an adverse effect and there are no adequate studies in pregnant women OR no animal studies have been conducted and there are no adequate studies in pregnant women.

Breastfeeding

There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.

Drug Interactions

Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are receiving this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.

  • Cisapride
  • Dronedarone
  • Grepafloxacin
  • Mesoridazine
  • Metoclopramide
  • Pimozide
  • Piperaquine
  • Sparfloxacin
  • Thioridazine

Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

  • Alfuzosin
  • Amiodarone
  • Amitriptyline
  • Amoxapine
  • Apomorphine
  • Arsenic Trioxide
  • Asenapine
  • Astemizole
  • Azithromycin
  • Carbinoxamine
  • Chloroquine
  • Chlorpromazine
  • Ciprofloxacin
  • Citalopram
  • Clarithromycin
  • Clomipramine
  • Clozapine
  • Crizotinib
  • Dasatinib
  • Desipramine
  • Disopyramide
  • Dofetilide
  • Dolasetron
  • Domperidone
  • Droperidol
  • Erythromycin
  • Fentanyl
  • Fingolimod
  • Flecainide
  • Fluconazole
  • Fluoxetine
  • Gatifloxacin
  • Gemifloxacin
  • Granisetron
  • Halofantrine
  • Haloperidol
  • Hydrocodone
  • Hydromorphone
  • Ibutilide
  • Iloperidone
  • Imipramine
  • Isradipine
  • Ivabradine
  • Lapatinib
  • Levofloxacin
  • Levorphanol
  • Lithium
  • Lopinavir
  • Lumefantrine
  • Meclizine
  • Mefloquine
  • Methadone
  • Metrizamide
  • Mifepristone
  • Morphine
  • Morphine Sulfate Liposome
  • Moxifloxacin
  • Nilotinib
  • Norfloxacin
  • Nortriptyline
  • Octreotide
  • Ofloxacin
  • Ondansetron
  • Oxycodone
  • Paliperidone
  • Pazopanib
  • Pentamidine
  • Perflutren Lipid Microsphere
  • Posaconazole
  • Procainamide
  • Procarbazine
  • Prochlorperazine
  • Propafenone
  • Protriptyline
  • Quetiapine
  • Quinine
  • Ranolazine
  • Salmeterol
  • Saquinavir
  • Sodium Phosphate
  • Sodium Phosphate, Dibasic
  • Sodium Phosphate, Monobasic
  • Solifenacin
  • Sorafenib
  • Sotalol
  • Sunitinib
  • Tapentadol
  • Telavancin
  • Telithromycin
  • Terfenadine
  • Tetrabenazine
  • Toremifene
  • Tramadol
  • Trifluoperazine
  • Trimipramine
  • Vandetanib
  • Vardenafil
  • Vemurafenib
  • Voriconazole
  • Ziprasidone
  • Zolpidem

Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

  • Belladonna
  • Belladonna Alkaloids
  • Betel Nut
  • Evening Primrose
  • Meperidine
  • Midodrine
  • Perampanel
  • Phenylalanine

Other Interactions

Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.

Other Medical Problems

The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:

  • Brain disease or injury or
  • Breathing or lung problems (e.g., asthma, COPD) or
  • Comatose state (unconscious) or
  • Reye's syndrome or
  • Sleep apnea, history of—Should not be used in patients with these conditions.
  • Bladder-neck blockage or
  • Bone marrow disease (e.g., agranulocytosis, leukopenia) or
  • Enlarged prostate or
  • Glaucoma, narrow-angle or
  • Heart or blood vessel disease or
  • Intestinal blockage or
  • Liver disease (including jaundice) or
  • Neuroleptic malignant syndrome, history of or
  • Respiratory depression (very slow breathing) or
  • Stomach ulcer or
  • Urinary tract blockage or difficult urination—Use with caution. May make these conditions worse.
  • Seizure disorders—This medicine may increase the chance of seizures especially in patients who are also using narcotic or anesthetic medicines.

Proper Use

A nurse or other trained health professional will give you this medicine. This medicine is given as a shot into a muscle or into a vein.

Your doctor will give you a few doses of this medicine until your condition improves, and then switch you to an oral medicine that works the same way. If you have any concerns about this, talk to your doctor.

Precautions

It is very important that your doctor check the progress of you or your child at regular visits to make sure this medicine is working properly. Blood tests may be needed to check for unwanted effects.

This medicine contains sodium metabisulfite. Make sure your doctor knows if you or your child have had an allergic reaction to sulfite in the past.

Check with your doctor right away if you or your child have burning, persistent or worsening pain at the injection site; or any involuntary muscle movements after receiving this medicine.

This medicine may affect blood sugar levels. If you or your child notice a change in the results of your blood or urine sugar tests or if you have any questions, check with your doctor.

This medicine will add to the effects of alcohol and other CNS depressants (medicines that make you drowsy or less alert). Some examples of CNS depressants are antihistamines or medicine for hay fever, other allergies, or colds; sedatives, tranquilizers, antidepressants, or sleeping medicine; prescription pain medicine or narcotics; medicine for seizures or barbiturates; muscle relaxants; or anesthetics, including some dental anesthetics. Check with your medical doctor or dentist before taking any of the above while you or your child are taking this medicine.

Check with your doctor right away if you or your child have pale or blue lips, fingernails, or skin; difficult or troubled breathing; irregular, fast, slow, or shallow breathing; or shortness of breath. These could be signs of a condition called respiratory depression.

This medicine may cause some people to become dizzy, lightheaded, drowsy, or less alert than they are normally. Even if taken at bedtime, it may cause some people to feel drowsy or less alert on arising. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous if you are not alert.

Promethazine can temporarily lower the number of white blood cells in your blood, increasing the chance of getting an infection. If you can, avoid people with infections. Check with your doctor immediately if you or your child think you are getting an infection or if you get a fever or chills, cough or hoarseness, lower back or side pain, or painful or difficult urination.

Check with your doctor right away if you or your child are having convulsions, difficulty in breathing, fast heartbeat, high fever, high or low blood pressure, increased sweating, loss of bladder control, severe muscle stiffness, unusually pale skin, or tiredness. These could be symptoms of a serious condition called neuroleptic malignant syndrome (NMS).

Check with your doctor right away if you or your child have pain or tenderness in the upper stomach; pale stools; dark urine; loss of appetite; nausea; unusual tiredness or weakness; or yellow eyes or skin. These could be symptoms of a liver problem.

Before you have any medical tests, tell the medical doctor in charge that you or your child are receiving this medicine. The results of some tests may be affected by this medicine.

This medicine may cause dryness of the mouth. For temporary relief, use sugarless candy or gum, melt bits of ice in your mouth, or use a saliva substitute. However, if your mouth continues to feel dry for more than 2 weeks, check with your medical doctor or dentist. Continuing dryness of the mouth may increase the chance of dental disease, including tooth decay, gum disease, and fungus infections.

This medicine may make your skin more sensitive to sunlight. Use a sunscreen when you are outdoors. Avoid sunlamps and tanning beds.

Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.

Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor or nurse immediately if any of the following side effects occur:

Rare

  1. Convulsions (seizures)
  2. difficult or unusually fast breathing
  3. fast heartbeat or irregular pulse
  4. high fever
  5. high or low blood pressure
  6. increased sweating
  7. loss of bladder control
  8. severe muscle stiffness
  9. unusually pale skin
  10. unusual tiredness or weakness

Incidence not known

  1. Abdominal or stomach pain
  2. black, tarry stools
  3. blood in the urine
  4. bloody nose
  5. blurred vision
  6. chest pain or discomfort
  7. chills
  8. clay-colored stools
  9. cough or hoarseness
  10. dark urine
  11. decreased awareness or responsiveness
  12. difficulty with speaking
  13. dizziness
  14. double vision
  15. drooling
  16. fast, pounding, or irregular heartbeat or pulse
  17. fever with or without chills
  18. fixed position of the eye
  19. headache
  20. heavier menstrual periods
  21. increases and decreases in blood pressure
  22. itching
  23. large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
  24. lightheadedness, dizziness, or fainting
  25. loss of appetite
  26. loss of balance control
  27. lower back or side pain
  28. mimicry of speech or movements
  29. muscle trembling, jerking, or stiffness
  30. mutism
  31. nausea
  32. negativism
  33. noisy breathing
  34. painful or difficult urination
  35. peculiar postures or movements, mannerisms, or grimacing
  36. pinpoint red spots on the skin
  37. restlessness
  38. seeing double
  39. seeing, hearing, or feeling things that are not there
  40. seizures
  41. severe sleepiness
  42. shortness of breath
  43. shuffling walk
  44. skin rash
  45. slow or irregular heartbeat
  46. sore throat
  47. sores, ulcers, or white spots on the lips or in the mouth
  48. stiffness of the limbs
  49. swollen glands
  50. tenderness, pain, swelling, warmth, skin discoloration, and prominent superficial veins over the affected area
  51. tightness in the chest
  52. tremors
  53. twisting movements of the body
  54. uncontrolled movements, especially of the face, neck, and back
  55. unpleasant breath odor
  56. unusual bleeding or bruising
  57. vomiting of blood
  58. wheezing
  59. yellow eyes or skin

Get emergency help immediately if any of the following symptoms of overdose occur:

Symptom of overdose

  1. Abnormal movements
  2. confusion as to time, place, or person
  3. dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
  4. feeling of warmth
  5. holding false beliefs that cannot be changed by fact
  6. hyperexcitability
  7. irregular, fast or slow, or shallow breathing
  8. nightmares
  9. pale or blue lips, fingernails, or skin
  10. pupils of the eyes, large and not moving or responding to light
  11. redness of the face, neck, arms, and occasionally, upper chest
  12. sweating
  13. troubled breathing
  14. unusual excitement, nervousness, or restlessness

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Incidence not known

  1. Blistering, crusting, irritation, or reddening of the skin
  2. continuing ringing or buzzing or other unexplained noise in the ears
  3. discoloration of the skin
  4. drowsiness
  5. dry mouth
  6. excitation
  7. false or unusual sense of well-being
  8. hearing loss
  9. hives or welts
  10. increased sensitivity of the skin to sunlight
  11. lack of coordination
  12. loss of strength or energy
  13. muscle pain or weakness
  14. nasal stuffiness
  15. nervousness
  16. severe sunburn
  17. sleeplessness
  18. trouble sleeping
  19. unable to sleep
  20. vomiting

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

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