Side Effects Promethazine

Promethazine Allergy symptoms treatment Promethazine Hydrochloride (generic Phenergan) is an antihistamine that relieves nasal stuffiness and inflammation and red, inflamed eyes caused by hay fever and other allergies. It is also used as treatment for swelling, itching, and redness from hives and other rashes; allergic reactions to blood transfusions; and, with other medications, anaphylactic shock (severe allergic reaction). Promethazine HCl is also used as a sedative and sleep aid for both adults and children, and is prescribed to prevent and control nausea and vomiting before and after surgery and to prevent and treat motion sickness. It is also used, with other medicines, for pain after surgery. Antihistamines work by decreasing the effects of histamine, a chemical the body releases in response to certain irritants. Histamine narrows air passages in the lungs and contributes to inflammation. Antihistamines reduce itching and swelling and dry up secretions from the eyes, nose, and throat.

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Promethazine Uses

Promethazine HCl is a phenothiazine used to treat or prevent nausea, vomiting, or motion sickness. It may also be used to treat allergic conditions and other conditions as determined by your doctor.

Promethazine How To Take

Follow the directions for using Promethazine HCl provided by your doctor. THIS MEDICINE MAY BE TAKEN WITH FOOD if it upsets your stomach. IF YOU ARE USING THIS MEDICINE FOR MOTION SICKNESS: take a dose at least 30 to 60 minutes before you begin traveling.

Promethazine Side Effects

Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can decide if it is safe for you to keep using Promethazine Hydrochloride.

Side effects may include: Abnormal eye movements, asthma, blood disorders, agitation, blurred vision, changes in blood pressure, confusion, disorientation, dizziness, double vision, dry mouth, excitement, faintness, fatigue, fever, hallucinations, hives, hysteria, impaired or interrupted breathing, insomnia, irregular heartbeat, lack of coordination, lack of energy, loss of movement, nasal stuffiness, nausea, nervousness, nightmares, protruding tongue, rapid heartbeat, rash, rigid muscles, sleepiness, ringing in the ears, sedation (extreme calm), seizures, sensitivity to light, slow heartbeat, stiff neck, sweating, swollen face and throat, vomiting, yellow skin and eyes, tremors, unnaturally good mood

Promethazine Medical Precautions

Do not take Promethazine HCl (generic Phenergan) if you have ever had an allergic reaction to it or to related medications, such as Thorazine, Mellaril, Stelazine, or Prolixin. Promethazine HCl is not for use in comatose patients, and should not be used to treat asthma or other breathing problems. If you are taking other medications that cause sedation, your doctor may reduce the dosage of these medications or eliminate them while you are using Phenergan. If you have a seizure disorder, Phenergan may cause your seizures to occur more often. Phenergan can cause a serious--even fatal--decline in the breathing function. Avoid this medication if you have chronic breathing problems such as emphysema, or if you suffer from sleep apnea (periods during sleep when breathing stops). Phenergan can also cause a potentially fatal condition called Neuroleptic Malignant Syndrome. Symptoms include high fever, rigid muscles, sweating, and a rapid or irregular heartbeat. If you develop these symptoms, stop taking Phenergan and see your doctor immediately. Use Phenergan cautiously if you have heart disease, high blood pressure or circulatory problems, liver problems, the eye condition called narrow-angle glaucoma, peptic ulcer or other abdominal obstructions, or urinary bladder obstruction due to an enlarged prostate.

Promethazine Hydrochloride MAY CAUSE drowsiness or dizziness. Do not drive, operate machinery, or do anything else that could be dangerous until you know how you react to this medicine. THIS MEDICINE WILL ADD TO THE EFFECTS of other depressants or alcohol. Ask your pharmacist if you have questions about which medicines are depressants. THIS MEDICINE MAY CAUSE increased sensitivity to the sun. Avoid exposure to the sun or sunlamps until you know how you react to this medicine. Use a sunscreen or protective clothing if you must be outside for a prolonged period. FOR WOMEN: IF YOU PLAN ON BECOMING PREGNANT, discuss with your doctor the benefits and risks of using this medicine during pregnancy. THIS MEDICINE IS EXCRETED IN BREAST MILK. IF YOU ARE OR WILL BE BREAST-FEEDING while you are using this medicine, check with your doctor or pharmacist to discuss the risks to your baby.

Some medicines or medical conditions may interact with this medicine. INFORM YOUR DOCTOR OR PHARMACIST of all prescription and over-the-counter medicine that you are taking. DO NOT TAKE THIS MEDICINE if you are also taking astemizole, cisapride, terfenadine, or tramadol. ADDITIONAL MONITORING OF YOUR DOSE OR CONDITION may be needed if you are taking levodopa, macrolide antibiotics, or meperidine. Inform your doctor of any other medical conditions, allergies, pregnancy, or breast-feeding. Contact your doctor or pharmacist if you have any questions or concerns about taking this mediation.

Promethazine Drug Interactions

Promethazine HCl may increase the effects of alcohol. Do not drink alcohol, or at least substantially reduce the amount you drink, while taking this medication.

If Promethazine HCl is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Promethazine with the following: