Generic Name(s): promethazine HCL
Drug Class: Antihistamines
Treats: Nausea, vomiting, motion sickness, Light sedation, Allergic rhinitis
Phenerzine (promethazine HCL) is a medication used to treat and prevent vomiting, nausea, and also relieving symptoms of common cold, flu and allergies. It is very effective in treating allergy symptoms such as itching, runny nose, rash, watery eyes among many others. Phenerzine is supplied in the form of a solution, and mostly administered in the form of an injection and rarely orally.
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Phenerzine is a drug formulated to treat and prevent allergy symptoms such as hives, itchy skin, watery eyes, sneezing and other symptoms caused by upper respiratory infections. Phenerzine is an antihistamine injection in the group of phenothiazines. It works by reducing the effect of the natural histamine in the body. Histamine is the chemical responsible for causing most of these allergic reactions. Phenerzine is also used as a treatment for other condition such as nausea, vomiting and motion sickness. The physician may also prescribe Phenerzine to treat other conditions not mentioned here.
Conditions that Phenerzine can be used for:
- Light sedation
- Motion sickness
- Allergic rhinitis
- Nausea and vomiting
Phenerzine dosage must be administered as prescribed by the physician for the expected outcome to be achieved. Follow the manufacturer's instructions to the letter and if they are not clear, seek an expert's advice. The patient should never take Phenerzine in a large amount as this can result in severe health complications. It should be administered as an injection intramuscularly. Phenerzine should also be injected deep into a muscle. Below you will find a typical Phenerzine dosage.
Usual adult dosage for:
- Anaphylaxis: 25 mg IM once and should be repeated within 2 hours. Oral dosage:;25 mg repeated every 4 hours.
- Allergic rhinitis: 25 mg IM once and should repeated within 2 hours. Oral dosage: 25 mg at bedtime.
- Nausea or vomiting: 12.5 to 25 mg every 4 to 6 hours.
Phenerzine Side Effects
Phenerzine is known for causing several side effects but this will greatly be determined by how patient reaction to this medication. The severity of the side effect is also determined by the way a patient responds to the medication. The fact that this drug is also supplied as a liquid, there is always a possibility of the patient taking it in a larger amount or overdosing than prescribed. Drug abuse is indeed one of the main causes of Phenerzine severe side effects. Note that not all possible Phenerzine side effects are listed here.
Common Phenerzine side effects:
- Dry mouth
- Loss of appetite
- Trouble sleeping
Severe Phenerzine side effects:
- Swelling of the mouth
- Difficulty in urinating
- Tightness in the chest
- severe high blood pressure
- Severe dizziness
- Vision changes
Phenerzine has been confirmed to interact with several drugs and thus you must be very careful when you are under its medication. Not many people have the idea that not all medicines can be combined and that some can have serious interactions. Avoid taking Phenerzine when you are under another treatment unless you have been advised by your physician.
Below you will find a list of drugs that may interact with Phenerzine. Note that not all possible interactions are listed.