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CAS Number
PubChem CID
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Chemical and physical data
Molar mass240.43 g/mol g·mol−1

Pentolinium is a ganglionic blocking agent which acts as a nicotinic acetylcholine receptor antagonist. Formulated as the pentolinium tartrate salt, it is also known as Ansolysen.[1] It can be used as an antihypertensive drug during surgery or to control hypertensive crises. It works by binding to the acetylcholine receptor of adrenergic nerves and thereby inhibiting the release of noradrenaline and adrenaline. Blocking this receptor leads to smooth muscle relaxation and vasodilation.


Its molecular formula is (C15H32N2)2+.[2]

Route of administration and dose[edit]

Pentolinium can be given orally (20mg three times a day), injected intramuscularly, or administered intravenously.[3]


Pentolinium and hexamethonium combined with Rauwolfia was reported in 1955 to be effective in the outpatient management of moderate to severe hypertension, with satisfactory orthostatic reduction in blood pressure but there are significant untoward effects attributable to the use of the hexamethonium. Pentolinium has been reported to offer more prolonged ganglionic blockade and has less severe untoward effects than hexamethonium.[4]


  1. ^ Agrest, Alberto; Hoobler SW (1955). "Long-Term Management of Hypertension with Pentolinium Tartrate (Ansolysen)". Journal of the American Medical Association. 157 (12): 999–1003. doi:10.1001/jama.1955.02950290019006. PMID 14353636.
  2. ^ CID 5850 from PubChem
  3. ^ R.D. Budhiraja (2009). Elementary Pharmacology & Toxicology. Popular Prakashan. p. 189. ISBN 97881-7991-472-4.
  4. ^ Dennis, Edward; Ford, Ralph; Herschberger, Robert; Moyer, John H. (1955). "Pentolinium and Hexamethonium Combined with Rauwolfia in the Treatment of Hypertension". New England Journal of Medicine. 253 (14): 597–600. doi:10.1056/NEJM195510062531404. PMID 13266002.

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