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Brompheniramine maleate, pseudoephedrine hydrochloride and dextromethorphan hydrobromide syrup is a clear, light pink syrup with a butterscotch flavor.Each 5 mL (1 teaspoonful) contains:Brompheniramine Maleate, USP . . . . . . . . 2 mgPseudoephedrine Hydrochloride, USP . . . . . 30 mgDextromethorphan Hydrobromide, USP . . . 10 mgAlcohol 0.95% v/vIn a palatable, aromatic vehicle.Inactive Ingredients: citric acid anhydrous, dehydrated alcohol, FD&C Red No. 40, glycerin, methylparaben, propylene glycol, purified water, sodium benzoate, and sucrose with butterscotch flavor. It may contain sodium citrate for pH adjustment. The pH range is between 4.0 and 6.0.C16H19BrN2•C4H4O4M.W. 435.31BrompheniramineMaleate, USP(±)-2- p-Bromo-α-2-(dimethylamino)ethylbenzylpyridinemaleate (1:1)C10H15NO•HClM.W. 201.69Pseudoephedrine Hydrochloride, USP (+)-Pseudoephedrine hydrochlorideC18H25NO•HBr•H2OM.W. 370.32DextromethorphanHydrobromide, USP 3-Methoxy-17-methyl-9α, 13α, 14α -morphinanhydrobromide monohydrateAntihistamine/Nasal Decongestant/Antitussive syrup for oral administration.
Brompheniramine maleate is a histamine antagonist, specifically an H1-receptor-blocking agent belonging to the alkylamine class of antihistamines. Antihistamines appear to compete with histamine for receptor sites on effector cells. Brompheniramine also has anticholinergic (drying) and sedative effects. Among the antihistaminic effects, it antagonizes the allergic response (vasodilation, increased vascular permeability, increased mucus secretion) of nasal tissue. Brompheniramine is well absorbed from the gastrointestinal tract, with peak plasma concentration after single, oral dose of 4 mg reached in 5 hours; urinary excretion is the major route of elimination, mostly as products of biodegradation; the liver is assumed to be the main site of metabolic transformation.Pseudoephedrine acts on sympathetic nerve endings and also on smooth muscle, making it useful as a nasal decongestant. The nasal decongestant effect is mediated by the action of pseudoephedrine on α-sympathetic receptors, producing vasoconstriction of the dilated nasal arterioles. Following oral administration, effects are noted within 30 minutes with peak activity occurring at approximately one hour.Dextromethorphan acts centrally to elevate the threshold for coughing. It has no analgesic or addictive properties. The onset of antitussive action occurs in 15 to 30 minutes after administration and is of long duration.
Indications And Usage
For relief of coughs and upper respiratory symptoms, including nasal congestion, associated with allergy or the common cold.
Hypersensitivity to any of the ingredients. Do not use in the newborn, in premature infants, in nursing mothers, or in patients with severe hypertension or severe coronary artery disease. Do not use dextromethorphan in patients receiving monoamine oxidase (MAOI) inhibitors (see PRECAUTIONS - Drug Interactions).Antihistamines should not be used to treat lower respiratory tract conditions including asthma.
Especially in infants and small children, antihistamines in overdosage may cause hallucinations, convulsions, and death.Antihistamines may diminish mental alertness. In the young child, they may produce excitation.
Because of its antihistamine component, brompheniramine maleate, pseudoephedrine hydrochloride and dextromethorphan hydrobromide syrup should be used with caution in patients with a history of bronchial asthma, narrow angle glaucoma, gastrointestinal obstruction, or urinary bladder neck obstruction. Because of its sympathomimetic component, brompheniramine maleate, pseudoephedrine hydrochloride and dextromethorphan hydrobromide syrup should be used with caution in patients with diabetes, hypertension, heart disease, or thyroid disease.
Information For Patients
Patients should be warned about engaging in activities requiring mental alertness, such as driving a car or operating dangerous machinery.
Monoamine oxidase (MAO) inhibitorsHyperpyrexia, hypotension, and death have been reported coincident with the coadministration of MAO inhibitors and products containing dextromethorphan. In addition, MAO inhibitors prolong and intensify the anticholinergic (drying) effects of antihistamines and may enhance the effect of pseudoephedrine. Concomitant administration of brompheniramine maleate, pseudoephedrine hydrochloride and dextromethorphan hydrobromide syrup and MAO inhibitors should be avoided (see CONTRAINDICATIONS). Central nervous system (CNS) depressantsAntihistamines have additive effects with alcohol and other CNS depressants (hypnotics, sedatives, tranquilizers, antianxiety agents, etc.).Antihypertensive drugsSympathomimetic may reduce the effects of antihypertensive drugs.
Carcinogenesis, Mutagenesis, Impairment Of Fertility
Animal studies of brompheniramine maleate, pseudoephedrine hydrochloride and dextromethorphan hydrobromide syrup to assess the carcinogenic and mutagenic potential or the effect on fertility have not been performed.
Teratogenic EffectsPregnancy Category CAnimal reproduction studies have not been conducted with brompheniramine maleate, pseudoephedrine hydrochloride and dextromethorphan hydrobromide syrup. It is also not known whether brompheniramine maleate, pseudoephedrine hydrochloride and dextromethorphan hydrobromide syrup can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. It should be given to a pregnant woman only if clearly needed.Reproduction studies of brompheniramine maleate (a component of brompheniramine maleate, pseudoephedrine hydrochloride and dextromethorphan hydrobromide syrup) in rats and mice at doses up to 16 times the maximum human doses have revealed no evidence of impaired fertility or harm to the fetus.
Because of the higher risk of intolerance of antihistamines in small infants generally, and in newborns and prematures in particular, brompheniramine maleate, pseudoephedrine hydrochloride and dextromethorphan hydrobromide syrup is contraindicated in nursing mothers.
Safety and effectiveness in pediatric patients below the age of 6 months have not been established (see DOSAGE AND ADMINISTRATION).
Clinical studies of brompheniramine maleate, pseudoephedrine hydrochloride and dextromethorphan hydrobromide syrup did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. However, antihistamines are more likely to cause dizziness, sedation, and hypotension in elderly patients. The elderly are also more likely to experience adverse reactions to sympathomimetics.In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.
The most frequent adverse reactions to brompheniramine maleate, pseudoephedrine hydrochloride and dextromethorphan hydrobromide syrup are: sedation; dryness of mouth, nose and throat; thickening of bronchial secretions; dizziness. Other adverse reactions may include:Dermatologic: Urticaria, drug rash, photosensitivity, pruritus.Cardiovascular System: Hypotension, hypertension, cardiac arrhythmias, palpitation.CNS: Disturbed coordination, tremor, irritability, insomnia, visual disturbances, weakness, nervousness, convulsions, headache, euphoria, and dysphoria.G.U. System: Urinary frequency, difficult urination.G.I. System: Epigastric discomfort, anorexia, nausea, vomiting, diarrhea, constipation.Respiratory System: Tightness of chest and wheezing, shortness of breath.Hematologic System: Hemolytic anemia, thrombocytopenia, agranulocytosis.
Signs And Symptoms
Central nervous system effects from overdosage of brompheniramine may vary from depression to stimulation, especially in children. Anticholinergic effects may be noted. Toxic doses of pseudoephedrine may result in CNS stimulation, tachycardia, hypertension, and cardiac arrhythmias; signs of CNS depression may occasionally be seen. Dextromethorphan in toxic doses will cause drowsiness, ataxia, nystagmus, opisthotonos, and convulsive seizures.
Data suggest that individuals may respond in an unexpected manner to apparently small amounts of a particular drug. A 2½-year-old child survived the ingestion of 21 mg/kg of dextromethorphan exhibiting only ataxia, drowsiness, and fever, but seizures have been reported in 2 children following the ingestion of 13 to 17 mg/kg. Another 2½-year-old child survived a dose of 300 to 900 mg of brompheniramine. The toxic dose of pseudoephedrine should be less than that of ephedrine, which is estimated to be 50 mg/kg.
Induce emesis if patient is alert and is seen prior to 6 hours following ingestion. Precautions against aspiration must be taken, especially in infants and small children. Gastric lavage may be carried out, although in some instances tracheostomy may be necessary prior to lavage. Naloxone hydrochloride 0.005 mg/kg intravenously may be of value in reversing the CNS depression that may occur from an overdose of dextromethorphan. CNS stimulants may counter CNS depression. Should CNS hyperactivity or convulsive seizures occur, intravenous short-acting barbiturates may be indicated. Hypertensive responses and/or tachycardia should be treated appropriately. Oxygen, intravenous fluids, and other supportive measures should be employed as indicated.
Dosage And Administration
Adults and pediatric patients 12 years of age and over: 10 mL (2 teaspoonfuls) every 4 hours. Children 6 to under 12 years of age: 5 mL (1 teaspoonful) every 4 hours. Children 2 to under 6 years of age: 2.5 mL (½ teaspoonful) every 4 hours. Infants 6 months to under 2 years of age: Dosage to be established by a physician.Do not exceed 6 doses during a 24-hour period.
Brompheniramine maleate, pseudoephedrine hydrochloride and dextromethorphan hydrobromide syrup is a clear, light pink-colored, butterscotch-flavored syrup containing in each 5 mL (1 teaspoonful) brompheniramine maleate 2 mg, pseudoephedrine hydrochloride 30 mg and dextromethorphan hydrobromide 10 mg, available in containers of 4 fluid ounces, NDC 68788-7610-1
Store at 20° to 25°C (68° to 77°F) [See USP Controlled Room Temperature].KEEP TIGHTLY CLOSEDDispense in a tight, light-resistant container as defined in the USP.Rx OnlyDistributed by:Mayne PharmaGreenville, NC 27834Code 1203A00Rev. 04/2018Relabeled By: Preferred Pharmaceuticals Inc.
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