Citicoline Sodium
Citicoline Sodium is the monosodium salt of cytidine diphosphate choline, with the chemical formula C14H25N4NaO11P2 and a molecular weight of approximately 510.31. It appears as white crystals or crystalline powder and is odorless. It is freely soluble in water, yet insoluble in ethanol and acetone.
As a sodium salt, this compound exhibits enhanced hygroscopicity, which facilitates the formation of various hydrates.
Citicoline Sodium is a coenzyme-based nucleoside derivative, serving as an endogenous intermediate in the biosynthesis of phosphatidylcholine and an essential building block for biological membranes.
Three primary synthetic routes are available for the preparation of Citicoline Sodium:
- Organic chemical synthesis: This method suffers from drawbacks including difficult separation of the target product from condensing agents, poor suitability for pharmaceutical applications, low reaction conversion rates, abundant by-products, high production costs and severe environmental pollution.
- Microbial fermentation: Key limitations of this process are low product titer and inconsistent yield.
- Enzymatic synthesis: Biosynthesis is carried out using microorganisms such as brewer's yeast sludge. Enzymatic synthesis employing intact brewer's yeast sludge cells features simple workflows, high conversion rates and low costs.
As a cerebral metabolic activator, Citicoline Sodium boosts the function of the ascending reticular activating system, reduces cerebral vascular resistance, elevates cerebral blood flow, optimizes cerebral circulation, facilitates cerebral substance metabolism and promotes neurological functional recovery.
Clinically, it is mainly indicated for consciousness disturbances following acute craniocerebral trauma and post-craniotomy surgery. It is also used in the treatment of Parkinson's syndrome and sensorineural hearing loss, as well as functional and consciousness disorders induced by other acute central nervous system injuries, ischemic cerebrovascular diseases and vascular dementia. It demonstrates certain therapeutic effects on Alzheimer's disease, depression, anti-aging, and the improvement of learning performance and memory.
Adverse Reactions
Occasional adverse reactions include rash, insomnia, onset or exacerbation of paresthesia in paralyzed limbs (observed in stroke patients with hemiplegia), headache, dizziness, agitation, convulsions, nausea, poor appetite, abnormal liver function tests, transient diplopia, fever, temporary blood pressure fluctuations, and lassitude.