Biomaterial Database

Effects of nortriptyline and its 10-hydroxy metabolite on plasma noradrenaline (NA) concentrations, heart rate and blood pressure during intravenous NA infusion. 1987

C Nordin, and P Collste, and K Otani, and M Scheinin

Department of Psychiatry, Karolinska Institute, Huddinge Hospital, Sweden.

Eight healthy subjects were randomly given placebo and equimolar doses of nortriptyline (NT) and E-10-hydroxy-NT (E-10-OH-NT). Two hours after oral intake of drug, noradrenaline (NA) was infused intravenously at three consecutive rates. Before infusion of NA, E-10-OH-NT significantly increased heart rate compared to NT (p less than 0.05) and placebo (p less than 0.01). During NA infusion, the active drugs caused non-significant tendencies to augmented increase of blood pressure and decrease of heart rate. Plasma NA concentrations increased significantly due to the infused NA but were not influenced by NT or E-10-OH-NT. This absence of drug effect may have been due to several simultaneously operating factors affecting plasma NA concentrations, e.g., modification of the rates of NA release and clearance by exogenous NA or drugs and competing elimination pathways for infused NA. After stopping the NA infusion, a non-significant tendency to a slower elimination of NA was found after both active drugs.

UI	MeSH Term	Description	Entries
D007262	Infusions, Intravenous	The long-term (minutes to hours) administration of a fluid into the vein through venipuncture, either by letting the fluid flow by gravity or by pumping it.	Drip Infusions,Intravenous Drip,Intravenous Infusions,Drip Infusion,Drip, Intravenous,Infusion, Drip,Infusion, Intravenous,Infusions, Drip,Intravenous Infusion
D008297	Male		Males
D009638	Norepinephrine	Precursor of epinephrine that is secreted by the ADRENAL MEDULLA and is a widespread central and autonomic neurotransmitter. Norepinephrine is the principal transmitter of most postganglionic sympathetic fibers, and of the diffuse projection system in the brain that arises from the LOCUS CERULEUS. It is also found in plants and is used pharmacologically as a sympathomimetic.	Levarterenol,Levonorepinephrine,Noradrenaline,Arterenol,Levonor,Levophed,Levophed Bitartrate,Noradrenaline Bitartrate,Noradrénaline tartrate renaudin,Norepinephrin d-Tartrate (1:1),Norepinephrine Bitartrate,Norepinephrine Hydrochloride,Norepinephrine Hydrochloride, (+)-Isomer,Norepinephrine Hydrochloride, (+,-)-Isomer,Norepinephrine d-Tartrate (1:1),Norepinephrine l-Tartrate (1:1),Norepinephrine l-Tartrate (1:1), (+,-)-Isomer,Norepinephrine l-Tartrate (1:1), Monohydrate,Norepinephrine l-Tartrate (1:1), Monohydrate, (+)-Isomer,Norepinephrine l-Tartrate (1:2),Norepinephrine l-Tartrate, (+)-Isomer,Norepinephrine, (+)-Isomer,Norepinephrine, (+,-)-Isomer
D009661	Nortriptyline	A metabolite of AMITRIPTYLINE that is also used as an antidepressive agent. Nortriptyline is used in major depression, dysthymia, and atypical depressions.	Desitriptyline,Desmethylamitriptylin,Allegron,Apo-Nortriptyline,Aventyl,Gen-Nortriptyline,Norfenazin,Nortrilen,Nortriptyline Hydrochloride,Novo-Nortriptyline,Nu-Nortriptyline,PMS-Nortriptyline,Pamelor,Paxtibi,ratio-Nortriptyline,Apo Nortriptyline,Gen Nortriptyline,Hydrochloride, Nortriptyline,Novo Nortriptyline,Nu Nortriptyline,PMS Nortriptyline,ratio Nortriptyline
D001794	Blood Pressure	PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.	Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D006339	Heart Rate	The number of times the HEART VENTRICLES contract per unit of time, usually per minute.	Cardiac Rate,Chronotropism, Cardiac,Heart Rate Control,Heartbeat,Pulse Rate,Cardiac Chronotropy,Cardiac Chronotropism,Cardiac Rates,Chronotropy, Cardiac,Control, Heart Rate,Heart Rates,Heartbeats,Pulse Rates,Rate Control, Heart,Rate, Cardiac,Rate, Heart,Rate, Pulse
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D012472	Salivation	The discharge of saliva from the SALIVARY GLANDS that keeps the mouth tissues moist and aids in digestion.
D014179	Neurotransmitter Uptake Inhibitors	Drugs that inhibit the transport of neurotransmitters into axon terminals or into storage vesicles within terminals. For many transmitters, uptake determines the time course of transmitter action so inhibiting uptake prolongs the activity of the transmitter. Blocking uptake may also deplete available transmitter stores. Many clinically important drugs are uptake inhibitors although the indirect reactions of the brain rather than the acute block of uptake itself is often responsible for the therapeutic effects.	Reuptake Inhibitors, Neurotransmitter,Transmitter Uptake Inhibitors, Neuronal,Inhibitors, Neurotransmitter Uptake,Uptake Inhibitors, Neurotransmitter,Inhibitors, Neurotransmitter Reuptake,Neurotransmitter Reuptake Inhibitors