INPANOL TABLET 40mg

Propranolol

Source of information: Drugbank (External Link). Last updated on: 3rd July 18
*Trade Name used in the content below may not be the same as the HSA-registered product.

Active Ingredient / Synonyms

1-((1-Methylethyl)amino)-3-(1-naphthalenyloxy)-2-propanol | 1-(isopropylamino)-3-(1-naphthyloxy)propan-2-ol | beta-Propranolol | Propanalol | Propanolol | Propranolol | Propranololo | Propranololum | β-Propranolol | Propranolol |

Description

A widely used non-cardioselective beta-adrenergic antagonist. Propranolol is used in the treatment or prevention of many disorders including acute myocardial infarction, arrhythmias, angina pectoris, hypertension, hypertensive emergencies, hyperthyroidism, migraine, pheochromocytoma, menopause, and anxiety. [PubChem]

Indication

For the prophylaxis of migraine.

Mechanism of Action

Propranolol competes with sympathomimetic neurotransmitters such as catecholamines for binding at beta(1)-adrenergic receptors in the heart, inhibiting sympathetic stimulation. This results in a reduction in resting heart rate, cardiac output, systolic and diastolic blood pressure, and reflex orthostatic hypotension.

Pharmacodynamics

Propranolol, the prototype of the beta-adrenergic receptor antagonists, is a competitive, nonselective beta-blocker similar to nadolol without intrinsic sympathomimetic activity. Propanolol is a racemic compound; the l-isomer is responsible for adrenergic blocking activity.

Pharmacokinetics

Absorption:

Propranolol is almost completely absorbed from the GI tract; however, plasma concentrations attained are quite variable among individuals.

Distribution:

* 4 L

Metabolism:

Hepatic

Elimination:

Propranolol is extensively metabolized with most metabolites appearing in the urine.

Half-life

4 hours

Clearance

Not Available

Toxicity

Symptoms of overdose include bradycardia, cardiac failure, hypotension, and brochospasm. LD50=565 mg/kg (orally in mice).

References

  1. Health Science Authority of Singapore - Reclassified POM
  2. Drugbank

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Approval Information

INPANOL TABLET 40mg was registered with Health Science Authority of Singapore by DRUG HOUSES OF AUSTRALIA PTE LTD. It is marketed with the registration number of SIN00075P with effective from 1988-02-24.

This product contains 40mg of Propranolol in the form of TABLET.

The medicine was manufactured by DRUG HOUSES OF AUSTRALIA PTE LTD in SINGAPORE

It is a Presciption Only Medicine which can only be obtained from a doctor or a dentist, or from a pharmacist with a prescription from a Singapore-registered doctor or dentist.

Anatomical Therapeutic Chemical (ATC) Classification

ATC Code: C07AA05

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400FAKTU SUPPOSITORYCinchocaine|PolicresulenP OnlyTAKEDA PHARMACEUTICALS (ASIA PACIFIC) PTE LTDActive
407TRIMAXAZOLE TABLETSulfamethoxazole|TrimethoprimPOMBEACONS PHARMACEUTICALS PTE LTDActive
435APO-SULFATRIM TABLETSulfamethoxazole|TrimethoprimPOMPHARMAFORTE SINGAPORE PTE LTDActive
508APO-SULFATRIM PEDIATRIC TABLETSulfamethoxazole|TrimethoprimPOMPHARMAFORTE SINGAPORE PTE LTDActive
526B.S. SUSPENSIONSulfamethoxazole|TrimethoprimPOMAPEX PHARMA MARKETING PTE LTDActive
583CO-TRIMEXAZOLE SUSPENSIONSulfamethoxazole|TrimethoprimPOMBEACONS PHARMACEUTICALS PTE LTDActive
676BANEOCIN OINTMENTBacitracin|NeomycinPOMNOVARTIS (SINGAPORE) PTE LTDActive
678BANEOCIN POWDERBacitracin|NeomycinPOMNOVARTIS (SINGAPORE) PTE LTDActive