Trifedrin

Trifedrin Uses, Dosage, Side Effects, Food Interaction and all others data.

First generation histamine H1 antagonist used in allergic rhinitis; asthma; and urticaria. It is a component of cough and cold medicines. It may cause drowsiness.

In allergic reactions an allergen interacts with and cross-links surface IgE antibodies on mast cells and basophils. Once the mast cell-antibody-antigen complex is formed, a complex series of events occurs that eventually leads to cell-degranulation and the release of histamine (and other chemical mediators) from the mast cell or basophil. Once released, histamine can react with local or widespread tissues through histamine receptors. Histamine, acting on H1-receptors, produces pruritis, vasodilatation, hypotension, flushing, headache, tachycardia, and bronchoconstriction. Histamine also increases vascular permeability and potentiates pain. Trifedrin, is a histamine H1 antagonist that competes with histamine for the normal H1-receptor sites on effector cells of the gastrointestinal tract, blood vessels and respiratory tract. It provides effective, temporary relief of sneezing, watery and itchy eyes, and runny nose due to hay fever and other upper respiratory allergies. Trifedrin has anticholinergic and sedative effects.

Trifedrin
Uses
Dosage
Side Effect
Precautions
Interactions
Uses during Pregnancy
Uses during Breastfeeding
Accute Overdose
Food Interaction
Half Life
Volume of Distribution
Clearance
Interaction With other Medicine
Contradiction
Storage

Trade Name	Trifedrin
Availability	Discontinued
Generic	Triprolidine
Triprolidine Other Names	Tripolidina, Triprolidin, Triprolidina, Triprolidine, Triprolidinum
Related Drugs	prednisone, hydroxyzine, cetirizine ophthalmic, cetirizine, loratadine, fluticasone nasal, dexamethasone ophthalmic, promethazine, Zyrtec, prednisolone ophthalmic
Type	Tablet
Formula	C₁₉H₂₂N₂
Weight	Average: 278.3914 Monoisotopic: 278.178298714
Groups	Approved
Therapeutic Class
Manufacturer	Otto Pharmaceuticasl Inds
Available Country	Indonesia
Last Updated:	September 19, 2023 at 7:00 am

Uses

Trifedrin is a sedating antihistamine combined with pseudoephedrine and guaifenesin in various types of cold and allergy medications to relieve allergy symptoms, hay fever and common cold symptoms, and to aid in sleep.

For the symptomatic relief of seasonal or perennial allergic rhinitis or nonallergic rhinitis; allergic conjunctivitis; and mild, uncomplicated allergic skin manifestations of urticaria and angioedema. Also used in combination with other agents for the symptomatic relief of symptoms associated with the common cold.

Trifedrin is also used to associated treatment for these conditions: Nasal Congestion, Perennial Allergic Rhinitis (PAR), Seasonal Allergic Conjunctivitis, Seasonal Allergic Rhinitis, Upper respiratory tract signs and symptoms, Vasomotor Rhinitis, Mild Angioedema, Mild urticaria, Upper respiratory discomfort

How Trifedrin works

Trifedrin binds to the histamine H1 receptor. This blocks the action of endogenous histamine, which subsequently leads to temporary relief of the negative symptoms brought on by histamine.

Toxicity

Symptoms of overdose include drowsiness, weakness, inco-ordination, difficulty with micturition, respiratory depression, hypotension, agitation, irritability, convulsions, hypertension, palpitation and tachycardia.

Food Interaction

Avoid alcohol. Taking with alcohol may increase drowsiness.

[Moderate] GENERALLY AVOID: Alcohol may potentiate some of the pharmacologic effects of CNS-active agents.

Use in combination may result in additive central nervous system depression and
MANAGEMENT: Patients receiving CNS-active agents should be warned of this interaction and advised to avoid or limit consumption of alcohol.

Ambulatory patients should be counseled to avoid hazardous activities requiring complete mental alertness and motor coordination until they know how these agents affect them, and to notify their physician if they experience excessive or prolonged CNS effects that interfere with their normal activities.