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LoHist PD

Generic Name: brompheniramine maleate and pseudoephedrine hydrochloride
Dosage Form: oral solution

Disclaimer: This drug has not been found by FDA to be safe and effective, and this labeling has not been approved by FDA. For further information about unapproved drugs, click here.

LoHist PD

LoHist PD Description

LoHist PD Pediatric Drops is a cherry flavored, clear liquid antihistamine/decongestant.

Each dropperful (1 mL) for oral administration contains:

Brompheniramine Maleate . . . . . . . . . . . . . . . . . . . . . . 1 mg

Pseudoephedrine HCl . . . . . . . . . . . . . . . . . . . . . . . . 12.5 mg

Inactive Ingredients: Cherry flavor, citric acid, glycerin, sodium benzoate, propylene glycol, purified water, sodium saccharin, and sorbitol.

Slideshow: Top Prevention Tips: Springtime Allergies

Brompheniramine Maleate is an antihistamine with the chemical name 2-Pyridinepropanamine, γ-(4-bromophenyl)-N,N-dimethyl-, (±)-, (Z) -2-butenedioate (1:1). Its structure is as follows:

C16H19BrN2 • C4H4O4                             M.W. 435.31

Pseudoephedrine Hydrochloride is a nasal decongestant with the chemical name:

benzenemethanol, α-[1-(methylamino)ethyl]-, [S-(R*,R*)]-, hydrochloride. Its structure is as follows:

C10H15NO • HCl                                 M.W. 201.69

LoHist PD - Clinical Pharmacology

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 (vasodilatation, increased vascular permeability, increased mucus secretion) of nasal tissue. Brompheniramine is well absorbed from the gastrointestinal tract, with peak plasma concentration after single, oral doses 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 hydrochloride is an orally effective nasal decongestant that acts on alpha-adrenergic receptors in the mucosa of the respiratory tract producing vasoconstriction. Pseudoephedrine shrinks swollen nasal mucous membranes, reduces tissue hyperemia, edema, and nasal congestion and increases nasal airway patency. Eustachian ostia may be opened. Pseudoephedrine produces little if any rebound congestion.

Indications and Usage for LoHist PD

LoHist PD is indicated for the temporary relief of nasal congestion and pressure, runny nose, sneezing, itching of the nose or throat, and itchy watery eyes, due to hay fever, or other upper respiratory allergies (allergic rhinitis).

Contraindications

LoHist PD is contraindicated in patients with hypersensitivity or idiosyncrasy to any of its ingredients, patients taking monoamine oxidase (MAO) inhibitors or for two weeks after stopping the MAOI drug (see PRECAUTIONS, Drug Interactions section), patients with narrow-angle glaucoma, urinary retention, peptic ulcer, severe hypertension, severe coronary artery disease, patients with breathing problems such as emphysema or chronic bronchitis, or nursing mothers. Antihistamines should not be used to treat lower respiratory tract conditions including asthma.

Warnings

Do not exceed recommended dosage. If nervousness, dizziness, or sleeplessness occur, discontinue use and consult a physician. If symptoms do not improve within 7 days or are accompanied by fever, consult a physician.

Sympathomimetic amines should be used judiciously and sparingly in patients with hypertension, diabetes mellitus, ischemic heart disease, increased intraocular pressure, hyperthyroidism or prostatic hypertrophy. Sympathomimetics may produce central nervous system stimulation with convulsions or cardiovascular collapse with accompanying hypotension.

Antihistamines may impair mental and physical abilities required for the performance of potentially hazardous tasks, such as driving a vehicle or operating machinery, and may impair mental alertness in children. In the young child, they may produce excitation.

Precautions

General

Because of its antihistamine component, LoHist PD 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, this syrup should be used with caution in patients with diabetes, hypertension, heart disease, or thyroid disease.

Information for Patients

Antihistamines may cause drowsiness and ambulatory patients who operate machinery or motor vehicles should be cautioned accordingly.

Drug Interactions

MAO inhibitors and beta adrenergic blockers increase the effect of sympathomimetics. Sympathomimetics may reduce the antihypertensive effects of methyldopa, mecamylamine, reserpine and veratrum alkaloids. Concomitant use of antihistamines with alcohol, tricyclic antidepressants, barbiturates and other CNS depressants may have an additive effect.

Pregnancy

Pregnancy Category C: Animal reproduction studies have not been conducted with LoHist PD. It is also not known whether LoHist PD can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. LoHist PD should be given to a pregnant woman only if clearly needed.

Nursing Mothers

It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human milk and because of the potential for serious adverse reactions in nursing infants from LoHist PD, a decision should be made to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.

Adverse Reactions

Hyperreactive individuals may display ephedrine-like reactions such as tachycardia, palpitations, headache, dizziness, or nausea. Patients sensitive to antihistamines may experience mild sedation. Sympathomimetic drugs have been associated with certain untoward reactions including fear, anxiety, tenseness, restlessness, tremor, weakness, pallor, respiratory difficulty, dysuria, insomnia, hallucinations, convulsions, CNS depression, arrhythmias, and cardiovascular collapse with hypotension.

Possible side effects of antihistamines are drowsiness, restlessness, dizziness, weakness, dry mouth, anorexia, nausea, headache, nervousness, blurring of vision, heartburn, dysuria and very rarely dermatitis. Patient idiosyncrasy to adrenergic agents may be manifested by insomnia, dizziness, weakness, tremor or arrhythmias.

Overdosage

No information is available as to specific results of an overdose of LoHist PD. The signs, symptoms and treatment described below are those of H1 antihistamines, and ephedrine overdose.

Symptoms: Should antihistamine effects predominate, central action constitutes the greatest danger. In the small child, symptoms include excitation, hallucination, ataxia, incoordination, tremors, flushed face and fever. Convulsions, fixed and dilated pupils, coma and death may occur in severe cases. In the adult, fever and flushing are uncommon; excitement leading to convulsion and postictal depression is often preceded by drowsiness and coma. Respiration is usually not seriously depressed; blood pressure is usually stable.

Should sympathomimetic symptoms predominate, central effects include restlessness, dizziness, tremor, hyperactive reflexes, talkativeness, irritability and insomnia. Cardiovascular and renal effects include difficulty in micturition, headache, flushing, palpitation, cardiac arrhythmia, hypertension with subsequent hypotension and circulatory collapse. Gastrointestinal effects include dry mouth, metallic taste, anorexia, nausea, vomiting, diarrhea and abdominal cramps.

Treatment: The stomach should be emptied promptly by emetics and/or gastric lavage. The installation of activated charcoal also should be considered. Cardiac function and serum electrolytes should be monitored and treatment initiated if indicated. If convulsions or marked CNS excitement occurs, diazepam may be used.

LoHist PD Dosage and Administration

AGE DOSE
Children 6 to under 12 years of age 2 dropperfuls (2 mL) every 4-6 hours
Children 2 to under 6 years of age 1 dropperful (1 mL) every 4-6 hours
Children under 2 As directed by a physician

How is LoHist PD Supplied

LoHist PD Pediatric Drops is supplied in bottles of 1 fl. oz. (30 mL), NDC 68047-011-30. Calibrated, shatter-proof dropper enclosed in each carton.

Storage and Handling

Store at 25°C (77°F); excursions permitted to 15°C-30°C (59°F-86°F). [See USP Controlled Room Temperature.]

LoHist PD contains safety seal under bottle cap. Pharmacist, dispense in original container.

KEEP THIS AND ALL MEDICATIONS OUT OF THE REACH OF CHILDREN. IN CASE OF ACCIDENTAL OVERDOSAGE, CONTACT A POISON CONTROL CENTER AND SEEK PROFESSIONAL ASSISTANCE IMMEDIATELY.

Rx only

Distributed by:

LARKEN LABORATORIES, INC.

Canton, MS 39046

Rev. 10/08

PRINCIPAL DISPLAY PANEL

Figure 1: Product Label

Figure 2: Product Carton

LOHIST  PD
brompheniramine maleate 1 mg/ pseudoephedrine hcl 12.5 mg/ 1ml solution/ drops
Product Information
Product Type HUMAN PRESCRIPTION DRUG LABEL Item Code (Source) NDC:68047-011
Route of Administration ORAL DEA Schedule     
Active Ingredient/Active Moiety
Ingredient Name Basis of Strength Strength
BROMPHENIRAMINE MALEATE (BROMPHENIRAMINE) BROMPHENIRAMINE MALEATE 1 mg  in 1 mL
PSEUDOEPHEDRINE HYDROCHLORIDE (PSEUDOEPHEDRINE) PSEUDOEPHEDRINE HYDROCHLORIDE 12.5 mg  in 1 mL
Inactive Ingredients
Ingredient Name Strength
CHERRY  
CITRIC ACID MONOHYDRATE  
GLYCERIN  
SODIUM BENZOATE  
PROPYLENE GLYCOL  
WATER  
SACCHARIN SODIUM  
SORBITOL  
Product Characteristics
Color      Score     
Shape Size
Flavor CHERRY Imprint Code
Contains         
Packaging
# Item Code Package Description
1 NDC:68047-011-30 1 BOTTLE, DROPPER (BOTTLE) in 1 CARTON
1 30 mL in 1 BOTTLE, DROPPER
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
Unapproved drug other 04/27/2005
Labeler - Larken Laboratories, Inc. (791043719)
Registrant - Larken Laboratories, Inc. (791043719)
Establishment
Name Address ID/FEI Operations
Deltex Pharmaceuticals, Inc. 019851778 MANUFACTURE
Revised: 01/2010
 
Larken Laboratories, Inc.

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