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Rivastigmine

pharmaceutical raw materials
Rivastigmine structure

Rivastigmine 

structure
  • CAS No:

    123441-03-2

  • Formula:

    C14H22N2O2

  • Chemical Name:

    Rivastigmine

  • Synonyms:

    Carbamic acid,N-ethyl-N-methyl-,3-[(1S)-1-(dimethylamino)ethyl]phenyl ester;Carbamic acid,ethylmethyl-,3-[1-(dimethylamino)ethyl]phenyl ester,(S)-;Carbamic acid,ethylmethyl-,3-[(1S)-1-(dimethylamino)ethyl]phenyl ester;SDZ 212-713;Rivastigmine;Exelon;ENA 713 free base;S-Rivastigmine;Prometax;Rivastach;[3-[(1S)-1-(Dimethylamino)ethyl]phenyl] N-ethyl-N-methylcarbamate;Nimvastid

  • Categories:

    Active Pharmaceutical Ingredients  >  Nervous System Drugs

Description

ChEBI: A carbamate ester obtained by formal condensation of the carboxy group of ethyl(methyl)carbamic acid with the phenolic OH group of 3-[(1S)-1-(dimethylamino)ethyl]phenol. A reversible cholinesterase inhibitor.Rivastigmine (Exelon, EA 713) is apseudoirreversible noncompetitive carbamate inhibitor ofAChE. Although the half-life is approximately 2 hours,the inhibitory properties of this agent last for 10 hours becauseof the slow dissociation of the drug from the enzyme.The Food and Drug Admi


Solid


Rivastigmine is a carbamate ester obtained by formal condensation of the carboxy group of ethyl(methyl)carbamic acid with the phenolic OH group of 3-[(1S)-1-(dimethylamino)ethyl]phenol. A reversible cholinesterase inhibitor. It has a role as an EC 3.1.1.8 (cholinesterase) inhibitor, a neuroprotective agent and a cholinergic drug. It is a carbamate ester and a tertiary amino compound. It is a conjugate base of a rivastigmine(1+).|Rivastigmine is a parasympathomimetic or cholinergic agent for the treatment of mild to moderate dementia of the Alzheimer's type. Rivastigmine is a cholinesterase inhibitor that inhibits both butyrylcholinesterase and acetylcholinesterase.|Rivastigmine is a Cholinesterase Inhibitor. The mechanism of action of rivastigmine is as a Cholinesterase Inhibitor.|Rivastigmine is an oral acetylcholinesterase inhibitor used for therapy of Alzheimer disease. Rivastigmine is associated with a minimal rate of serum enzyme elevations during therapy and is a rare cause of clinically apparent liver injury.|A carbamate-derived reversible CHOLINESTERASE INHIBITOR that is selective for the CENTRAL NERVOUS SYSTEM and is used for the treatment of DEMENTIA in ALZHEIMER DISEASE and PARKINSON DISEASE.

Rivastigmine Basic Attributes

250.34

250.34

1308068-626-2

PKI06M3IW0

DTXSID7023564

N06DA03|N - Nervous system

2924296000

Characteristics

32.8

2.3

Solid

1.038±0.06 g/cm3(Predicted)

316.2±34.0 °C(Predicted)

145℃

1.518

2.04e+00 g/L

-20°C

D20 -32.1° (c = 5 in ethanol)

165 Ų [M+H]+ [CCS Type: TW, Method: Major Mix IMS/Tof Calibration Kit (Waters)]

Safety Information

UN 2810 6.1 / PGIII

Toxicity

In large placebo controlled trials, rivastigmine therapy was not associated with an increased rate of serum enzyme elevations compared to placebo treatment and no instances of clinically apparent liver injury with jaundice were reported. Nevertheless, since its introduction into clinical use, rivastigmine (administered by transdermal patch) has been implicated in at least one report of clinically apparent hepatotoxicity with mild jaundice. The time to onset was 2 months and the serum enzyme elevations had a mildly hepatocellular pattern. Mild rash and eosinophilia were also present, but autoimmune features were not. Recovery was complete within 5 weeks of drug discontinuation.

40%

Drug Information

For the treatment of mild to moderate dementia associated with Parkinson's disease or of the Alzheimer's type.|FDA Label|Symptomatic treatment of mild to moderately severe Alzheimer's dementia.Symptomatic treatment of mild to moderately severe dementia in patients with idiopathic Parkinson's disease.|Symptomatic treatment of mild to moderately severe Alzheimer's dementia.|Treatment of dementia

Rivastigmine is an oral acetylcholinesterase inhibitor used for therapy of Alzheimer disease. Rivastigmine is associated with a minimal rate of serum enzyme elevations during therapy and is a rare cause of clinically apparent liver injury.

Alzheimer Disease Agents

Rivastigmine is a parasympathomimetic and a reversible cholinesterase inhibitor. An early pathophysiological feature of Alzheimer's disease that is associated with memory loss and cognitive deficits is a deficiency of acetylcholine as a result of selective loss of cholinergic neurons in the cerebral cortex, nucleus basalis, and hippocampus. Tacrine is postulated to exert its therapeutic effect by enhancing cholinergic function. While the precise mechanism of rivastigmine's action is unknown, it is postulated to exert its therapeutic effect by enhancing cholinergic function. This is accomplished by increasing the concentration of acetylcholine through reversible inhibition of its hydrolysis by cholinesterase. If this proposed mechanism is correct, rivastigmine's effect may lessen as the disease progresses and fewer cholinergic neurons remain functionally intact.

Drugs intended to prevent damage to the brain or spinal cord from ischemia, stroke, convulsions, or trauma. Some must be administered before the event, but others may be effective for some time after. They act by a variety of mechanisms, but often directly or indirectly minimize the damage produced by endogenous excitatory amino acids. (See all compounds classified as Neuroprotective Agents.)|Drugs that inhibit cholinesterases. The neurotransmitter ACETYLCHOLINE is rapidly hydrolyzed, and thereby inactivated, by cholinesterases. When cholinesterases are inhibited, the action of endogenously released acetylcholine at cholinergic synapses is potentiated. Cholinesterase inhibitors are widely used clinically for their potentiation of cholinergic inputs to the gastrointestinal tract and urinary bladder, the eye, and skeletal muscles; they are also used for their effects on the heart and the central nervous system. (See all compounds classified as Cholinesterase Inhibitors.)

Rivastigmine is extensively metabolized primarily via cholinesterase-mediated hydrolysis to the decarbamylated metabolite NAP226-90. Renal excretion of the metabolites is the major route of elimination. Less than 1% of the administered dose is excreted in the feces.|1.8 to 2.7 L/kg|renal cl=2.1-2.8 L/hr

Rivastigmine is rapidly metabolized by cholinesterase-mediated hydrolysis.

1.5 hours

Rivastigmine is a carbamate derivative that is structurally related to physostigmine, but not to donepezil and tacrine. The precise mechanism of rivastigmine has not been fully determined, but it is suggested that rivastigmine binds reversibly with and inactivates chlolinesterase (eg. acetylcholinesterase, butyrylcholinesterase), preventing the hydrolysis of acetycholine, and thus leading to an increased concentration of acetylcholine at cholinergic synapses. The anticholinesterase activity of rivastigmine is relatively specific for brain acetylcholinesterase and butyrylcholinesterase compared with those in peripheral tissues.

(S)-N-ethyl-3-((1-dimethyl-amino)ethyl)-N-methylphenylcarbamate

Rivastigmine Use and Manufacturing

Uses

Antidepressant

Human drugs -> Exelon -> EMA Drug Category|Psychoanaleptics -> Human pharmacotherapeutic group|Human drugs -> Prometax -> EMA Drug Category|Human drugs -> Rivastigmine Hexal -> EMA Drug Category|Human drugs -> Rivastigmine Sandoz -> EMA Drug Category|Human drugs -> Rivastigmine 1 A Pharma -> EMA Drug Category|Human drugs -> Rivastigmine Actavis -> EMA Drug Category|Human drugs -> Nimvastid -> EMA Drug Category|Human drugs -> Rivastigmine 3M Health Care Ltd -> EMA Drug Category|Psychoanaleptics, Anticholinesterases -> Human pharmacotherapeutic group|Human drugs -> Rivastigmine Teva -> EMA Drug Category|Anticholinesterases -> Human pharmacotherapeutic group|Human Drugs -> EU pediatric investigation plans|Human Drugs -> FDA Approved Drug Products with Therapeutic Equivalence Evaluations (Orange Book) -> Active Ingredients

Computed Properties

Molecular Weight:250.34
XLogP3:2.3
Hydrogen Bond Acceptor Count:3
Rotatable Bond Count:5
Exact Mass:250.168127949
Monoisotopic Mass:250.168127949
Topological Polar Surface Area:32.8
Heavy Atom Count:18
Complexity:269
Defined Atom Stereocenter Count:1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Drug Function and Efficacy

Rivastigmine is an amino acid that selectively acts on acetyl and butyrylcholinesterase inhibitors in the brain, promoting cholinergic neurotransmission by delaying the degradation of acetylcholine released by fully functional cholinergic neurons. It can improve cholinergic-mediated cognitive dysfunction in patients with Alzheimer's disease and may slow down the formation of amyloid protein caused by the deposition of β-amyloid precursor protein (APP) fragments.

This ingredient has been used in drugs with the following functions (note: it does not mean that the ingredient itself has the following health functions)

Related Drugs

Registered Holders

  • MSN ORGANICS PRIVATE LTD

    United States United States
    Active
  • JUBILANT BIOSYS LTD

    United States United States
    Active
  • ALEMBIC PHARMACEUTICALS LTD

    United States United States
    Active

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