An adrenergic neuron-blocking drug similar in effects to guanethidine. It is also noteworthy in being a substrate for a polymorphic cytochrome P-450 enzyme. Persons with certain isoforms of this enzyme are unable to properly metabolize this and many other clinically important drugs. They are commonly referred to as having a debrisoquin 4-hydroxylase polymorphism. [PubChem]
Indication
For the treatment of moderate and severe hypertension, either alone or as an adjunct, and for the treatment of renal hypertension.
Pharmacology
Debrisoquin is an adrenergic neuron-blocking drug similar in effects to guanethidine. It is a substrate for a polymorphic cytochrome P-450 enzyme. Persons with certain isoforms of this enzyme are unable to properly metabolize this and many other clinically important drugs. They are commonly referred to as having a debrisoquin 4-hydroxylase polymorphism.
