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Indoramin


Indoramin
Systematic (IUPAC) name
N-[1-[2-(1H-indol-3-yl)ethyl]-4-piperidyl]benzamide
Identifiers
CAS number	26844-12-2
ATC code	C02CA02
PubChem	33625
Chemical data
Formula	C₂₂H₂₅N₃O
Mol. mass	347.454 g/mol
Pharmacokinetic data
Bioavailability	?
Metabolism	?
Half life	?
Excretion	?
Therapeutic considerations
Pregnancy cat.	?
Legal status
Routes	?

Indoramin (trade name Baratol) is a piperidine antiadrenergic agent. its an alpha-1 selective adrenoceptor antagonist. Indoramin is a α-adrenoceptor antagonist which acts selectively and competitively on post-synaptic α1-adrenoceptors, causing a decrease in peripheral vascular resistance, relaxation of the bladder neck and contraction of the detrusor.1–3 In palliative care, indoramin is used for hesitancy of micturition associated with benign prostatic hypertrophy.4,5 Other selective α1-antagonists are available, namely prazosin, tamsulosin and terazosin.6 All may cause severe hypotension, particularly with the first dose and in patients receiving diuretics or other antihypertensive medication.7 Low cost is the only advantage in using prazosin; this has to be balanced against ease of compliance with tamsulosin and terazosin (o.d. compared to b.d.). Indoramin is probably the safest in debilitated patients.6 Muscarinic drugs and anticholinesterases are sometimes preferable to an α-adrenoceptor antagonist, e.g. bethanechol 10–25mg t.d.s., distigmine 5mg o.d. If necessary, one of these may be used concurrently with indoramin. Indoramin is also licensed for use in the management of hypertension

Additional recommended knowledge

v • d • e Antihypertensives (C02) and diuretics (C03)
Sympatholytic agents (including alpha)	centrally acting/antiadrenergics (Clonidine, Guanfacine, Methyldopa, Moxonidine, Rescinnamine, Reserpine, Rilmenidine) • ganglion-blocking/nicotinic antagonist (Mecamylamine, Trimethaphan) • peripherally acting/antiadrenergics (Prazosin, Guanethidine, Indoramin, Doxazosin)
Vasodilators	Diazoxide • Hydralazine • Minoxidil • Nitroprusside • Phentolamine
Other antihypertensives	serotonin antagonist (Ketanserin) • endothelin receptor antagonist (Bosentan, Ambrisentan, Sitaxsentan)
Low ceiling diuretics	Thiazide (Bendroflumethiazide, Chlorothiazide, Hydrochlorothiazide) • Chlortalidone • Indapamide • Quinethazone • Mersalyl • Metolazone • Theobromine • Cicletanine
High ceiling diuretics	Loop diuretic (Bumetanide, Furosemide, Torasemide)
Potassium-sparing diuretics	ESC blockers (Amiloride, Triamterene) • aldosterone antagonists (Spironolactone, Eplerenone, Potassium canrenoate, Canrenone)