Generic Name(s): promethazine HCL
Drug Class: Antihistamines
Treats: Anaphylaxis , Allergic rhinitis , Light sedation, Motion sickness ,Nausea and vomiting
Phen-Tuss (promethazine HCL) is a medication used to treat and prevent vomiting and nausea. It may also be used to relieve symptoms of common cold, flu and allergies. It is also;effective in treating allergy symptoms such as itching, runny nose, rash, watery eyes among many others. It is supplied in the form of solution, and mostly administered in the form of an injection or orally.
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Phen-Tuss is a medication that is formulated to treat various conditions. It is mostly used to treat and prevent allergy symptoms such as hives, itchy skin, watery eyes, sneezing and others caused by upper respiratory infections. Phen-Tuss is an antihistamine that is grouped as a phenothiazine. 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. The drug may also be used to treat other condition such as nausea, vomiting and motion sickness.
Conditions that Phen-Tuss can be used for:
- Allergic rhinitis
- Light sedation
- Motion sickness
- Nausea and vomiting
Phen-Tuss 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 advice. The patient should never take Phen-Tuss in a large amount as this can result in severe healthy complications. It should be administered as an injection or orally. Below you will find a typical Phen-Tuss dosage.
Usual adult dosage
- Anaphylaxis; 25 mg IV or IM once and should be repeated within 2 hours. For oral dosage; 25 mg once and be repeated every 4 hours. Rectal dosage; 25 mg once and be repeated every 4 hours.
- Allergic rhinitis; 25 mg IV or IM once and should repeated within 2 hours. Oral dosage; 25 mg at bedtime.
- Nausea vomiting; 12.5 to 25 mg every 4 to 6 hours.
Usual pediatric dosage
- Allergic reactions: 2 years and above; 0.5 mg/kg.
- Nausea or vomiting: 0.5 to 1 mg/kg/dose every 6 hours.
Phen-Tuss Side Effects
Phen-Tuss is known for causing several side effects. The severity of the side effect is mostly 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 large amount or overdosing than prescribed. Drug abuse is indeed one of the main causes of Phen-Tuss severe side effects. Note that not all possible Phen-Tuss side effects are listed.
Phen-Tuss common side effects:
- Dry mouth
- Trouble sleeping
- Loss of appetite
Severe side effects:
- Difficulty urinating
- Tightness in the chest
- Swelling of the mouth
- severe high blood pressure
- Severe dizziness
- Vision changes
Phen-Tuss 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 Phen-Tuss 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 Phen-Tuss. Note that not all possible interactions are listed.