The report provides a detailed analysis essential for establishing a primidone production plant. It encompasses all critical aspects necessary for primidone production, including the cost of primidone production, primidone plant cost, primidone production costs, and the overall primidone production plant cost. Additionally, the study covers specific expenditures associated with setting up and operating a primidone production plant. These encompass production processes, raw material requirements, utility requirements, infrastructure needs, machinery and technology requirements, manpower requirements, packaging requirements, transportation requirements, and more.
Primidone is a first generation barbiturate derived anticonvulsant mainly used to treat epilepsy. It is mainly used in generalised tonic clonic and focal seizures, either as monotherapy or in combination with other antiepileptic drugs. It works by reducing neuronal excitability through modulation of sodium and calcium channels and by generating active metabolites. It improves GABAergic inhibition and contributes to seizure control. It is also employed as a second line treatment for essential tremor, especially in patients who do not tolerate or respond adequately to beta blockers like propranolol. It is utilised in certain refractory seizure syndromes and neonatal apnea or anxiety related disorders. Its common side effects include sedation, drowsiness, dizziness, loss of coordination or ataxia, vertigo, nausea, vomiting, and blurred or double vision.
The primidone market is driven by rising global cases of epilepsy and essential tremor. The rise in the ageing population more susceptible to neurological disorders, and the strong demand for low cost generic antiepileptics, fuel its market. The greater awareness of seizure and tremor management and expanding healthcare infrastructure in regions like the Asia Pacific boost its demand. The industrial primidone procurement of primidone is influenced by strict regulatory requirements that favour high purity and consistently controlled materials. The generic competition keeps pricing under pressure and forces buyers to balance cost, quality, and supply chain resilience that impacts its sourcing. Also, the availability of alternative antiepileptic and tremor drugs introduces a substitution risk that affects the market dynamics.
Raw Material for Primidone Production
According to the primidone production plant project report, the key raw materials used in the production of primidone include diethyl phenylethyl malonate, thiourea, and sodium methoxide.
Production Process of Primidone
The extensive primidone production cost report consists of the following major industrial production process:
- From diethyl phenylethyl malonate: Primidone production starts by preparing thio-phenobarbital sodium. In this process, condensation of diethyl phenylethyl malonate with thiourea in methanolic sodium methoxide takes place. Thio-phenobarbital sodium is then acidified with dilute HCl, extracted with ethyl acetate, and dried to yield thio-phenobarbital. Thio-phenobarbital is reduced via high-pressure hydrogenation using a Pd/C catalyst in ethanol at elevated temperature. This is followed by solvent recovery, extraction, and recrystallisation from ethyl acetate to obtain pure primidone.
Primidone is a barbiturate-derived anticonvulsant with the molecular formula C12H14N2O2 and a molecular weight of 218.25 g/mol. It appears as a white, odourless, crystalline powder with a slightly bitter taste. It has a high melting point of around 281–282 degrees Celsius. It is only sparingly soluble in water but more soluble in organic solvents such as ethanol and acetone. Its octanol–water partition coefficient (log P) is about 0.54, which makes it moderately lipophilic. It is a weak acid because of its pyrimidinedione core, which influences its dissolution and absorption profile in the gastrointestinal tract.
