What is Phenergan? Also known as promethazine, Phenergan is a drug from the group known as Phenothiazines. It functions by altering actions of chemicals inside your brain. It acts as an antihistamine too. Phenergan blocks the consequences of the naturally forming chemical histamine in a human body. In this article on phenergan side effects you will be given information on different types of body symptoms that can happen because of this drug.
What Is Phenergan Used For?
Phenergan is prescribed to treat symptoms caused by allergies such as runny nose, watery or itchy eyes, sneezing, itching, itchy skin rashes, hives, and so on.
It also helps in preventing sickness due to motions, treats vomiting and nausea or pains post surgery. It can also be used as a sleep aid or sedative.
Phenergan cannot be used to treat symptoms of pneumonia, asthma, or other types of lower respiratory tract infections.
Taking Precautions In Times Of Phenergan Medication
Not meant for children below 2 years old: You should not give Phenergan to the children younger than 2 years old. It can cause serious breathing issues and can lead to death in very young age children. You should carefully follow your physician’s instructions when giving Phenergan to the children of any age.
Do not take if allergic to promethazine: You are not supposed to take Phenergan or any similar medications if you are allergic to promethazine, which include trifluperazine, thioridazine, prochlorperazine, perphenazine, mesoridazine, fluphenazine, or chlorpromazine.
Make sure to inform your doctor before taking Phenergan, if you have:
- Hypocalcemia – low calcium levels in your blood
- Adrenal gland tumor
- Liver disease
- High blood pressure or heart disease
- Stomach ulcer
- Urination problems or enlarged prostate
- History of seizures
- Sulfite allergy
- Sleep apnea, COPF (chronic obstructive pulmonary disease, asthma, or any other breathing disorder.
- Bone marrow depression
It is not proved whether or not this drug harms an unborn baby. Make sure to inform your doctor if you are planning o become pregnant or you are already pregnant before using Phenergan.
Though not known yet, promethazine may pass into mother’s breast milk, and may cause harm to the nursing baby. Hence, it is recommended not to use Phenergan while breast-feeding.
Phenergan Side Effects
Following are some of the most seen side effects of Phenergan. However, make sure to discuss with your doctor if you are allergic to any medicines.
Immediately, stop taking Phenergan and get emergency help if you see any of the following side effects:
- Unusual paleness
- Trembling, unsteadiness, or other issues with your muscle coordination or control
- Do not get enough sleep
- Difficulty in focusing on jobs
- Unsteady walk or shakiness of legs
- Redness of upper chest, arms, neck, or face
- Pupils of your eyes become large, not responding to light or remain in still position
- Overactive reflexes
- Muscle tightness or tension
- Lack of appetite
- Feeling of warmth
- Excessive muscle tone
- Dry mouth
- Lightheadedness, faintness, or dizziness when getting up from a sitting or lying position suddenly
- Yellow skin or eyes
- Vomiting of blood
- Unusual weakness or tiredness
- Unusual restlessness, nervousness, or excitement
- Unusual bruising or bleeding
- Unpleasant breath odor
- Uncontrolled neck twisting movements
- Chest tightness
- Swollen glands
- Sticking out of tongue
- Ulcers, sores, or white spots in mouth or on lips
- Sore throat
- Irregular or slow heartbeat
- Skin rash
- Shortness of breath
- Severe sleepiness
- Serious muscle stiffness
- Feeling, hearing, or seeing things that does not exist
- Seeing double images
- Have no control sometimes, on parts of the body
- Blue or pale skin, fingernails, or lips
- Painful or difficult urination
- Breathing difficulty or Noisy breathing
- Mimicry of movements or speech
- Lower side pain or back pain
- Loss of bladder control
- Loss of appetite
- Hive-like, large swelling on sex organs, feet, legs, hands, throat, tongue, lips, eyelids, or face
- Increased sweating
- Decreased or increased blood pressure
- High fever
- Heavier menstrual periods
- Fixed position of eye
- Fever with or without chills
- Double vision
- Decreased awareness or responsiveness
- Dark urine
- Cough or hoarseness
- Confusion as to time, place, or person
- Clay-colored stools
- Chest pain or discomfort
- Blurred vision
- Bloody nose
- Blood in urine or stools
- Bleeding gums
- Tarry, black stools
- Stomach or abdominal pain
- Incidence not known
- Severe muscle stiffness
- Increased sweating
- Convulsions (seizures)
Some of the Phenergan side effects may not necessarily require medical attention. They may disappear as your body gets used to the drug. You can take your doctor’s help to reduce or prevent these side effects. However, make sure to check with them if any of the above side affects persist for a longer period.
Nervous System Side Effects
Nervous system side effects are often seen while using Phenergan, which include:
- Encephalitic symptoms
- Extra-pyramidal effects – tongue protrusion, torticollis, and oculogyric crisis
- Decreased motor coordination
- Convulsive seizures
- Paradoxical excitation
- Excessive sedation
Cardiovascular Side Effects
Cardiovascular side effects are very rarely seen, following are some of them
- Malignant arrhythmias
- Heart block
- Prolongation of the QT interval
- Decreased or increased blood pressure
Immunologic Side Effects
Immunologic side effects are very rarely associated with Phenergan. However, may include lupus erythematosus synodrome.
Dermatologic Side Effects
Dermatologic side effects of Phenergan include:
Psychiatric Side Effects
Some of the psychiatric side effects caused while using Phenergan include:
- Agitated and delirium behavior
Other Important Information
Make sure to remember the following information while using Phenergan:
- Phenergan may cause side effects that can harm your reactions or thinking.
- You should be very careful while driving or doing something that requires your attention. Make sure to avoid taking alcohol as it can increase most of the side effects caused by Phenergan.
- Many other drugs can interact with Phenergan. You need to inform your doctor about over-the-counter medicines or other prescription medicines you are taking while taking Phenergan, which include: other drugs, minerals, vitamins, or herbal products.
- Make sure not to take some other medication without informing your doctor.