The report provides a detailed analysis essential for establishing a methdilazine production plant. It encompasses all critical aspects necessary for methdilazine production, including the cost of methdilazine production, methdilazine plant cost, methdilazine production costs, and the overall methdilazine production plant cost. Additionally, the study covers specific expenditures associated with setting up and operating a methdilazine 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.
Methdilazine is a first-generation phenothiazine derivative antihistamine. It works by competitively antagonising central and peripheral H1 histamine receptors. It stops different allergic responses, including seasonal allergic rhinitis (hay fever), characterised by sneezing, rhinorrhoea, nasal congestion, and pruritus. It is used in chronic or acute urticaria (hives) with associated angioedema, allergic conjunctivitis presenting as ocular redness, tearing, and itching. It is also utilised in pruritic dermatoses like atopic dermatitis, contact dermatitis, eczema, and other inflammatory skin conditions. It is also used in localised reactions from insect bites, stings, or minor skin trauma that provoke intense itching and swelling. It has anticholinergic properties that are utilised in vestibular disturbances like vertigo and motion sickness by suppressing nausea and vomiting centres in the brainstem.
The market for methdilazine is influenced by its demand as an effective phenothiazine derivative antihistamine. Its utilisation for managing severe allergic rhinitis, chronic urticaria, pruritic dermatoses, insect bite reactions, vertigo, etc., contributes to its demand. Its effectiveness, where modern non-sedating alternatives fall short, mainly in patients requiring combined anticholinergic and sedative benefits, makes it a preferred choice. The industrial methdilazine procurement is affected by specialised hospital and clinic formularies, favouring its proven efficacy in acute itching or nausea unresponsive to second-generation H1 blockers.
The affordable generic API production from select manufacturers amid rising allergy cases, along with regulatory compliance for phenothiazine-class stability, affects its market dynamics. The cold storage needs and competition from other options, like cetirizine impacts its sourcing.
Raw Material for Methdilazine Production
According to the methdilazine production plant project report, the key raw materials used in the production of methdilazine include phenothiazine, 1-methyl-3-pyrrolidylmethyl chloride, hydrogen chloride, and isopropyl alcohol.
Production Process of Methdilazine
The extensive methdilazine production cost report consists of the following major industrial production process:
- By alkylation reaction: The production process of methdilazine involves the alkylation of phenothiazine. The process starts by reacting phenothiazine with 1-methyl-3-pyrrolidylmethyl chloride (or 1-methyl-3-pyrrolidinylmethyl chloride) under controlled conditions. It takes place in a suitable solvent with a base or catalyst to get 10-(1-methyl-3-pyrrolidylmethyl)phenothiazine, the free base form. This intermediate is then dissolved in isopropyl alcohol and a hydrogen chloride solution to form a clear, light yellow solution. After cooling, the precipitate is filtered, washed and dried to get pure methdilazine hydrochloride as the final product.
Methdilazine has the molecular formula of C18H20N2S and molecular weight of 296.43 g/mol (free base). Its hydrochloride salt has a molecular weight of 332.86 g/mol. It appears as a white to pale yellow crystalline powder with a melting point of 87-88 °C. It has a boiling point of around 170 °C with a density of 1.185 g/cm³. It has a tricyclic phenothiazine core substituted at the 10-position with a (1-methylpyrrolidin-3-yl)methyl group. It shows high lipophilicity with an XLogP3AA value of 5.2 and has no hydrogen bond donors, three acceptors, and a topological polar surface area of 31.8 Ų.
