Traditional Unani Uses and Modern Pharmacological Insights of Ajwain-e-Khorasani (Hyoscyamus niger): A Detailed Review

Abstract

Objective: The objective of this review is to comprehensively evaluate the traditional Unani uses and modern pharmacological activities of Hyoscyamus niger (Ajwain-e-Khorasani). The review aims to compile and analyze available classical Unani literature and contemporary scientific studies related to its ethnomedicinal importance, phytochemical constituents, and therapeutic potential. Furthermore, it seeks to correlate traditional claims with experimentally proven pharmacological actions such as analgesic, anti-inflammatory, antispasmodic, sedative, antioxidant, antimicrobial, neuroprotective, and other medicinal properties, thereby highlighting its significance as a valuable medicinal plant for future research and therapeutic applications.
Methods: This review was conducted through a comprehensive literature survey of classical Unani texts and modern scientific databases regarding Hyoscyamus niger (Ajwain-e-Khorasani). Relevant information on traditional uses, phytochemistry, pharmacological activities, and therapeutic applications was collected from authoritative Unani literature including classical manuscripts and pharmacopoeias, as well as contemporary published research articles.
Results: The review demonstrated that Hyoscyamus niger (Ajwain-e-Khorasani) holds significant importance in Unani medicine and modern pharmacology. Classical Unani texts describe its use in the treatment of pain, inflammation, respiratory disorders, insomnia, spasmodic conditions, and nervous system ailments. Modern studies support these traditional claims and report analgesic, anti-inflammatory, antispasmodic, sedative, antimicrobial, antioxidant, anticonvulsant, and neuroprotective activities. Phytochemical investigations revealed the presence of important bioactive compounds including alkaloids, flavonoids, coumarins, glycosides, and phenolic constituents responsible for its therapeutic effects.
Conclusions The review highlights a strong correlation between the traditional Unani uses and modern pharmacological findings of Hyoscyamus niger. Various studies support its analgesic, sedative, antispasmodic, anti-inflammatory, antioxidant, antimicrobial, and neuroprotective activities due to the presence of bioactive compounds such as hyoscyamine and scopolamine. However, its toxic nature necessitates cautious therapeutic use and further clinical studies to establish safety, efficacy, and standardization.