Biomaterial Database

A comparison of debrisoquine and methyldopa in hypertension. 1976

P Pörsti

Debrisoquine, an antihypertensive agent, was compared with methyldopa in a double-blind trial in the treatment of hypertension in 20 patients. The cross-over method was used to treat each patient with first one and then the other drug for two periods of six weeks each. Two placebo periods of two weeks each were also included, one before the trial, and the other between the two therapy periods. The maximum daily dose was 3 X 10 mg debrisoquine compared with 3 X 250 mg methyldopa. Hydrochlorothiazide, 50 mg daily, was added in all cases for the entire trial. Both preparations lowered blood pressure statistically significantly (p less than 0.005). Tablet for tablet, debrisoquine had a slightly more pronounced effect than methyldopa, but the difference was not statistically significant. Both drugs were well tolerated and in no case had treatment to be interrupted because of side effects. Debrisoquine produced less sedation and dizziness than methyldopa. The conclusion was that both drugs were equally effective in the doses studied and well tolerated and that debrisoquine is of value in the treatment of moderate hypertension.

UI	MeSH Term	Description	Entries
D006973	Hypertension	Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more.	Blood Pressure, High,Blood Pressures, High,High Blood Pressure,High Blood Pressures
D007546	Isoquinolines	A group of compounds with the heterocyclic ring structure of benzo(c)pyridine. The ring structure is characteristic of the group of opium alkaloids such as papaverine. (From Stedman, 25th ed)
D008297	Male		Males
D008750	Methyldopa	An alpha-2 adrenergic agonist that has both central and peripheral nervous system effects. Its primary clinical use is as an antihypertensive agent.	Methyldopate,alpha-Methyldopa,Aldomet,Alphamethyldopa,Apo-Methyldopa,Dopamet,Dopegit,Dopegyt,Dopergit,Hydopa,Meldopa,Nu-Medopa,Sembrina,alpha-Methyl-L-Dopa,Apo Methyldopa,Nu Medopa,alpha Methyl L Dopa,alpha Methyldopa
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D010919	Placebos	Any dummy medication or treatment. Although placebos originally were medicinal preparations having no specific pharmacological activity against a targeted condition, the concept has been extended to include treatments or procedures, especially those administered to control groups in clinical trials in order to provide baseline measurements for the experimental protocol.	Sham Treatment
D002986	Clinical Trials as Topic	Works about pre-planned studies of the safety, efficacy, or optimum dosage schedule (if appropriate) of one or more diagnostic, therapeutic, or prophylactic drugs, devices, or techniques selected according to predetermined criteria of eligibility and observed for predefined evidence of favorable and unfavorable effects. This concept includes clinical trials conducted both in the U.S. and in other countries.	Clinical Trial as Topic
D003647	Debrisoquin	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.	Debrisoquine,Tendor
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man