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Details

Stereochemistry ACHIRAL
Molecular Formula C20H24ClN3S.2C4H4O4
Molecular Weight 606.087
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 2
Charge 0

SHOW SMILES / InChI
Structure of PROCHLORPERAZINE MALEATE

SMILES

OC(=O)\C=C/C(O)=O.OC(=O)\C=C/C(O)=O.CN1CCN(CCCN2C3=C(SC4=C2C=C(Cl)C=C4)C=CC=C3)CC1

InChI

InChIKey=DSKIOWHQLUWFLG-SPIKMXEPSA-N
InChI=1S/C20H24ClN3S.2C4H4O4/c1-22-11-13-23(14-12-22)9-4-10-24-17-5-2-3-6-19(17)25-20-8-7-16(21)15-18(20)24;2*5-3(6)1-2-4(7)8/h2-3,5-8,15H,4,9-14H2,1H3;2*1-2H,(H,5,6)(H,7,8)/b;2*2-1-

HIDE SMILES / InChI

Molecular Formula C20H24ClN3S
Molecular Weight 373.943
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Molecular Formula C4H4O4
Molecular Weight 116.0722
Charge 0
Count
MOL RATIO 2 MOL RATIO (average)
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 1
Optical Activity NONE

Description

Prochlorperazine is a piperazine phenothiazine antipsychotic which block postsynaptic mesolimbic dopaminergic receptors in the brain and has antiemetic effects by its antagonist actions in the D2 dopamine receptors in the chemoreceptor trigger zone. It also exhibits alpha-adrenergic blocking effect on α1 receptros and may depress the release of hypothalamic and hypophyseal hormones. Prochlorperazine is used for the control of severe nausea and vomiting, for the treatment of schizophrenia. Prochlorperazine is effective for the short-term treatment of generalized non-psychotic anxiety. Prochlorperazine may be an effective treatment of acute headaches and refractory chronic daily headache.

CNS Activity

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
22.6 µM [IC50]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
COMPAZINE
Primary
COMPAZINE
Primary
COMPAZINE
Primary
COMPAZINE
Primary
Unknown

Cmax

ValueDoseCo-administeredAnalytePopulation
3.9 ng/mL
25 mg 2 times / day multiple, oral
PROCHLORPERAZINE plasma
Homo sapiens
4 ng/mL
50 mg single, oral
PROCHLORPERAZINE plasma
Homo sapiens

AUC

ValueDoseCo-administeredAnalytePopulation
32.3 ng × h/mL
25 mg 2 times / day multiple, oral
PROCHLORPERAZINE plasma
Homo sapiens

T1/2

ValueDoseCo-administeredAnalytePopulation
18.1 h
25 mg 2 times / day multiple, oral
PROCHLORPERAZINE plasma
Homo sapiens
8 h
50 mg single, oral
PROCHLORPERAZINE plasma
Homo sapiens
9 h
12.5 mg/kg single, intravenous
PROCHLORPERAZINE plasma
Homo sapiens

Doses

AEs

PubMed

Sample Use Guides

In Vivo Use Guide
DOSAGE AND ADMINISTRATION–ADULTS 1. To Control Severe Nausea and Vomiting: Adjust dosage to the response of the individual. Begin with the lowest recommended dosage. Oral Dosage–Tablets: Usually one 5 mg or 10 mg tablet 3 or 4 times daily. Daily dosages above 40 mg should be used only in resistant cases. Spansule capsules: Initially, usually one 15 mg capsule on arising or one 10 mg capsule q12h. Daily doses above 40 mg should be used only in resistant cases. 11 Rectal Dosage: 25 mg twice daily. I.M. Dosage: Initially 5 to 10 mg (1 to 2 mL) injected deeply into the upper outer quadrant of the buttock. If necessary, repeat every 3 or 4 hours. Total I.M. dosage should not exceed 40 mg per day. I.V. Dosage: 2½ to 10 mg (½ to 2 mL) by slow I.V. injection or infusion at a rate not to exceed 5 mg per minute. Compazine Injection may be administered either undiluted or diluted in isotonic solution. A single dose of the drug should not exceed 10 mg; total I.V. dosage should not exceed 40 mg per day. When administered I.V., do not use bolus injection. Hypotension is a possibility if the drug is given by I.V. injection or infusion. 2. Adult Surgery (for severe nausea and vomiting): Total parenteral dosage should not exceed 40 mg per day. Hypotension is a possibility if the drug is given by I.V. injection or infusion. I.M. Dosage: 5 to 10 mg (1 to 2 mL) 1 to 2 hours before induction of anesthesia (repeat once in 30 minutes, if necessary), or to control acute symptoms during and after surgery (repeat once if necessary). I.V. Dosage: 5 to 10 mg (1 to 2 mL) as a slow I.V. injection or infusion 15 to 30 minutes before induction of anesthesia, or to control acute symptoms during or after surgery. Repeat once if necessary. Compazine (prochlorperazine) may be administered either undiluted or diluted in isotonic solution, but a single dose of the drug should not exceed 10 mg. The rate of administration should not exceed 5 mg per minute. When administered I.V., do not use bolus injection. 3. In Adult Psychiatric Disorders: Adjust dosage to the response of the individual and according to the severity of the condition. Begin with the lowest recommended dose. Although response ordinarily is seen within a day or 2, longer treatment is usually required before maximal improvement is seen. Oral Dosage: Non-Psychotic Anxiety–Usual dosage is 5 mg 3 or 4 times daily; by Spansule capsule, usually one 15 mg capsule on arising or one 10 mg capsule q12h. Do not administer in doses of more than 20 mg per day or for longer than 12 weeks. Psychotic Disorders including Schizophrenia–In relatively mild conditions, as seen in private psychiatric practice or in outpatient clinics, dosage is 5 or 10 mg 3 or 4 times daily. In moderate to severe conditions, for hospitalized or adequately supervised patients, usual starting dosage is 10 mg 3 or 4 times daily. Increase dosage gradually until symptoms are controlled or side effects become bothersome. When dosage is increased by small increments every 2 or 3 days, side effects either do not occur or are easily controlled. Some patients respond satisfactorily on 50 to 75 mg daily. In more severe disturbances, optimum dosage is usually 100 to 150 mg daily. I.M. Dosage: For immediate control of adult schizophrenic patients with severe symptomatology, inject an initial dose of 10 to 20 mg (2 to 4 mL) deeply into the upper outer quadrant of the buttock. Many patients respond shortly after the first injection. If necessary, however, repeat the initial dose every 2 to 4 hours (or, in resistant cases, every hour) to gain control of the patient. More than three or four doses are seldom necessary. After control is achieved, switch patient to an oral form of the drug at the same dosage level or higher. If, in rare cases, parenteral therapy is needed for a prolonged period, give 10 to 20 mg (2 to 4 mL) every 4 to 6 hours. Pain and irritation at the site of injection have seldom occurred. Subcutaneous administration is not advisable because of local irritation.
Route of Administration: Other
In Vitro Use Guide
We have studied the effects of prochlorperazine on the activities of UDP-glucuronosyltransferase and glucose-6-phosphatase (glucose-6-P'ase) in rat liver microsomes. The activity of UDP-glucuronosyltransferase was increased in a graded fashion by addition of prochlorperazine. Maximal stimulation occurred at 1 mg prochlorperazine to 2 mg microsomal protein, which resulted in a 6-fold increase in activity.
Substance Class Chemical
Record UNII
I1T8O1JTL6
Record Status Validated (UNII)
Record Version