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Generic name: carbetapentane citrate, pseudoephedrine hydrochloride
Dosage form: liquid
Drug class: Upper respiratory combinations

Medically reviewed by Last updated on Aug 23, 2021.

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.

Corzall Liquid

Rx Only
Antitussive / Decongestant


Each teaspoonful (5 mL) for oral administration contains:
Carbetapentane Citrate..... 20 mg
Pseudoephedrine Hydrochloride..... 30 mg

Inactive ingredients: Citric Acid, Glycerin, Grape Flavor, Propylene Glycol, Purified Water, Sodium Citrate,
Sodium Saccharin, Sorbitol.

Carbetapentane Citrate (1-Phenylcyclopentanecarboxylic acid, 2-(2-diethylaminoethoxy) ethyl ester citrate) is a white
crystalline powder. It is freely soluble in water and chloroform. Its structure is as follows:

Pseudoephedrine Hydrochloride (Benzenemethanol, α-[1-(methylamino)ethyl]-, [S-(R*,R*)-, hydrochloride) is the
hydrochloride of pseudoephedrine, a naturally occurring dextrorotatory stereoisomer of ephedrine. Its structure
is as follows:

Corzall - Clinical Pharmacology

Antitussive and decongestant actions.

Carbetapentane citrate is a centrally acting non-narcotic antitussive. Carbetapentane citrate has atropine-like and local
anesthetic actions, as well as temporarily controls and suppresses the cough reflex by selective depression of the
medullary cough center. It has no significant analgesic or sedative properties, does not depress respiration or predispose
to addiction with usual doses.

Pseudoephedrine hydrochloride is an oral sympathomimetic amine that acts as a decongestant to respiratory tract
mucous membranes. While its vasoconstrictor action is similar to that of ephedrine, pseudoephedrine has less
pressor effect in normotensive adults. Serum half-life for pseudoephedrine is 6 to 8 hours. Acidic urine is associated
with faster elimination of the drug. About one-half of the administered drug is excreted in the urine.

Indications and Usage for Corzall

CorzallTM is indicated for the symptomatic relief of the cough, coryza and nasal congestion associated with the common
cold, sinusitis, allergic rhinitis and other upper respiratory tract conditions. Appropriate therapy should be provided for the
primary disease.


Patients with hypersensitivity or idiosyncrasy to any of its ingredients. Sympathomimetic amines are contraindicated
in patients with severe hypertension, severe coronary heart disease and patients on monoamine oxidase (MAO) inhibitor


Sympathomimetic amines should be used judiciously and sparingly in patients with hypertension, diabetes, ischemic
heart disease, hyperthyroidism, increased intraocular pressure, or prostatic hypertrophy. (See CONTRAINDICATIONS).
Sympathomimetic amines may produce CNS stimulation with convulsions or cardiovascular collapse with accompanying
hypotension. The elderly (60 years and older) are more likely to exhibit adverse reactions.

A persistent cough may be a sign of a serious condition. If cough persists for more than one week or tends to recur, or is
accompanied by fever, rash, or persistent headache, patient re-evaluation should be considered.


General: There are studies which demonstrate that carbetapentane has antitussive activity which may suppress or modify
cough. Before prescribing medication to suppress or modify cough, identify and provide therapy for the underlying cause of
the cough and take caution that modification of cough does not increase the risk of clinical or physiologic complications.

Use with caution in patients with hypertension, heart disease, asthma, hyperthyroidism, increased intraocular pressure,
diabetes mellitus, and prostatic hypertrophy.

Information for patients:

Avoid alcohol and other CNS depressants while taking this product. Patients sensitive to sympathomimetics may note
mild CNS stimulation.

Drug Interactions:

Carbetapentane citrate should not be used in patients receiving MAO inhibitors, including 14 days after stopping the MAOI
drug. The use of Carbetapentane citrate may result in additive CNS depressant effects when coadministered with alcohol,
antihistamines, psychotropics or other drugs that produce CNS depression.
Sympathomimetics may reduce the hypotensive effects of guanethidine, mecamylamine, methyldopa, reserpine and
veratrum alkaloids. Concurrent use of tricyclic antidepressants may antagonize the effects of pseudoephedrine. Use of
other vasopressor drugs during halothane anethesia may cause serious cardiac arrhythmias.

Pregnancy Category C:

Animal reproduction studies have not been conducted with this product. It is not known whether this product can cause fetal
harm when administered to a pregnant woman or affect reproductive capacity. Give to pregnant women only if clearly needed.

Nursing Mothers:

It is not known if the drugs in this product are excreted in human milk. Since many drugs may be excreted into human milk
and because of the potential for serious side effects in the nursing infant, this product should only be given to nursing mothers
if clearly needed.

Pediatric use:

Safety and effectiveness in pediatric patients below the age of six have not been established. Product not intended for
administration for children 6 years of age and under.

Geriatric use:

The elderly (60 years and older) are more likely to have adverse reactions to sympathomimetics. Overdosage of
sympathomimetics in this age group may cause hallucinations, convulsions, CNS depression and death.

Adverse Reactions

Adverse effects associated with Carbetapentane citrate are rare, but nausea and/or other gastrointestinal disturbances
sometimes occur.

Sympathomimetic Amines: Convulsions, CNS stimulation, cardiac arrhythmia, respiratory difficulties, increased heart
rate or blood pressure, hallucinations, tremors, nervousness, insomnia, pallor and dysuria.


The signs, symptoms and treatment described below are those of pseudoephedrine and carbetapentane.

Symptoms: Should sympathomimetic symptoms predominate, central effects includes 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.

a) Evacuate stomach as condition warrants. Activated charcoal may be useful.
b) Maintain a non-stimulating environment.
c) Monitor cardiovascular status.
d) Do not give stimulants.
e) Reduce fever with sponging.
f) Use sedatives or anticonvulsants to control CNS excitation, and convulsions.
g) Physostigmine may reverse anti-cholinergic symptoms.
h) Ammonium Chloride may acidify the urine to increase urinary excretion of pseudoephedrine.
I) Further care is symptomatic and supportive.


Adults and Children 12 years of age and older:
1-2 teaspoonfuls (5-10 mL) every 4-6 hours, not to exceed 12 teaspoonfuls in a 24 hour period.
Children 6 to 12 years of age:
1/2 to 1 teaspoonful (2.5-5 mL) every 4-6 hours, not to exceed 6 teaspoonfuls in a 24 hour period.
Children under 6 years of age:
Consult a physician.

*In mild cases or in particularly sensitive patients, less frequent or reduced doses may be adequate.

How is Corzall Supplied

CorzallTM Liquid is supplied in a clear, grape flavored liquid available in 16 fl oz bottles, NDC 63717-552-16 and 1/2 fl. oz.
(15 mL) sample bottles, NDC 63717-552-99.


Store at 20o to 25oC (68o to 77oF). [See USP Controlled Room Temperature]

Dispense in a tight, light-resistant container as defined in the USP/NF with a child-resistant closure.

Tamper evident by foil seal under cap.
Do not use if foil seal is broken or missing.

Manufactured for:
Hawthorn Pharmaceuticals, Inc.
Madison, MS 39110

HI 253 08/09


The packaging below represents the labeling currently used.

NDC 63717-552-16


Antitussive / Decongestant

Each teaspoonful (5 mL) for oral administration contains:
Carbetapentane Citrate..... 20 mg
Pseudoephedrine HCl..... 30 mg

Rx Only

Dye Free / Sugar Free / Alcohol Free

Hawthorn Pharmaceuticals, Inc.

16 fl oz (473 mL)

Side Panel:

USUAL DOSAGE: See Package Insert for Complete Dosage Recommendations.



Store at 20o to 25oC (68o to 77oF). [See USP Controlled Room Temperature]

Tamper evident by foil seal under cap. Do not use if foil seal is broken or missing.

This bottle is not to be dispensed to the consumer. Dispense in a tight, light-resistant container with a child-resistant closure.

Call your doctor for medical advice about side effects. You may reports side effects to FDA at 1-800-FDA-1088 (Toll Free).

Manufactured for: Hawthorn Pharmaceuticals, Inc., Madison, MS 39110

HL206 08/09

Corzall LIQUID
carbetapentane citrate, pseudoephedrine hydrochloride liquid
Product Information
Product Type HUMAN PRESCRIPTION DRUG LABEL Item Code (Source) NDC:63717-552
Route of Administration ORAL DEA Schedule
Active Ingredient/Active Moiety
Ingredient Name Basis of Strength Strength
Carbetapentane Citrate (Carbetapentane) Carbetapentane Citrate 20 mg in 5 mL
Pseudoephedrine Hydrochloride (Pseudoephedrine) Pseudoephedrine Hydrochloride 30 mg in 5 mL
Product Characteristics
Color Score
Shape Size
Flavor GRAPE Imprint Code
# Item Code Package Description
1 NDC:63717-552-16 473 mL in 1 BOTTLE
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
unapproved other 08/27/2009
Labeler - Hawthorn Pharmaceuticals, Inc. (118049704)
Hawthorn Pharmaceuticals, Inc.