Pilocarpine, sold under the brand name Pilopine HS among others, is a lactone alkaloid originally extracted from plants of the Pilocarpus genus. It is used as a medication to reduce intraocular pressure in conditions like glaucoma and to treat dry mouth (xerostomia) caused by radiation therapy or Sjögren's syndrome. Pilocarpine works by stimulating muscarinic receptors, which increases the secretion of saliva and aqueous humor, helping alleviate symptoms.
Parent: Pilocarpine Hydrochloride
Parent: Pilocarpine Hydrochloride / Pilocarpine
Impurities in Pilocarpine Hydrochloride can arise due to synthesis processes, degradation, or storage conditions. Regulatory authorities like the FDA, ICH, and EMA enforce strict impurity limits to ensure the drug’s safety and efficacy.
Process-Related Impurities
Degradation Impurities
Elemental Impurities
Analytical Techniques for Impurity Detection
Pilocarpine Hydrochloride is used to reduce intraocular pressure in glaucoma patients and to treat dry mouth (xerostomia) caused by radiation therapy or autoimmune conditions like Sjögren’s syndrome.
Pilocarpine is still in use but less frequently than before due to the availability of newer, more effective treatments with fewer side effects for glaucoma and dry mouth. Its use has declined particularly in glaucoma due to its side effects, such as headache and blurred vision.
Pilocarpine causes pupillary constriction (miosis) and enhances the outflow of aqueous humor, reducing intraocular pressure. This action helps manage glaucoma but can cause temporary blurred vision and difficulty seeing in low light.
The most common side effect of pilocarpine is sweating, followed by other cholinergic effects such as headache, nausea, and increased salivation. When used in eye drops, it can cause blurred vision and eye irritation.
