Labetalol Hydrochloride is a combined alpha-1 adrenergic receptor blocker and beta-adrenergic receptor blocker used primarily for the management of hypertension. It reduces blood pressure through a combination of decreased peripheral vascular resistance and reduced cardiac activity.
Labetalol Hydrochloride is commonly used in the management of hypertension, including certain acute hypertensive situations where rapid blood-pressure control is required.
Labetalol Hydrochloride is a specialized cardiovascular pharmaceutical API manufactured through controlled chemical synthesis, purification and salt formation.
Important quality attributes include identity, assay, related substances, water content, residual solvents, elemental impurities, optical purity and stability.
CAS Number: 32780-06-6
Molecular Formula: C19H24N2O3·HCl
Molecular Weight: 364.87 g/mol
Drug Class: Adrenergic Blocker
Pharmacological Class: Alpha-1 and Beta Adrenergic Receptor Blocker
Therapeutic Class: Antihypertensive
Therapeutic Area: Cardiovascular
Labetalol blocks both alpha-1 adrenergic receptors and beta adrenergic receptors.
Alpha-1 blockade causes peripheral vasodilation and decreases systemic vascular resistance, while beta blockade reduces cardiac stimulation.
The combined activity results in:
Labetalol Hydrochloride is used for:
The specific route and indication depend on the approved formulation and applicable regulatory labeling.
Labetalol has a distinctive pharmacological profile because it combines alpha-1 blockade with non-selective beta blockade. This allows reduction of blood pressure through both vasodilation and suppression of beta-adrenergic cardiovascular activity.
Typical API manufacturing may involve:
Labetalol Hydrochloride API quality evaluation may include:
Labetalol Hydrochloride should be stored in a tightly closed container under controlled pharmaceutical storage conditions, protected from excessive heat, moisture and direct light. Final storage conditions should be established through validated stability studies.
Labetalol Hydrochloride is relevant to research involving:
Labetalol Hydrochloride is a combined alpha-1 and beta-adrenergic receptor blocker with CAS Number 32780-06-6, molecular formula C19H24N2O3·HCl, and molecular weight 364.87 g/mol. It is primarily used as an antihypertensive agent and is relevant to cardiovascular pharmaceutical development.
| Parameter | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Identification | IR & HPLC compliant |
| Assay (HPLC) | 98.0% – 102.0% |
| Loss on Drying | NMT 1.0% |
| Residue on Ignition | NMT 0.5% |
| Individual Impurity | NMT 0.5% |
| Total Impurities | NMT 1.0% |
| Water Content | NMT 2.0% |