Asparagus adscendens, commonly known as Shatavari, has a long history of use in traditional Ayurvedic and Unani medicine for respiratory ailments, including coughs, particularly those characterized as spasmodic or irritating. Historical texts and ethnobotanical reports document its use as an expectorant and soothing agent for the throat. The roots are typically used in powdered or decocted form, and are believed to have demulcent properties, helping to soothe mucous membranes and reduce irritation that may trigger coughing. Some traditional practitioners also attribute mild antispasmodic actions to the plant, which could theoretically help with spastic coughs.

However, robust scientific evidence supporting the efficacy of Asparagus adscendens specifically for spastic cough is lacking. There are a few preliminary studies indicating anti-inflammatory or immunomodulatory effects and some animal studies showing antitussive activity in related species like Asparagus racemosus, but these findings are not sufficient to confirm benefit for this indication in humans. No high-quality clinical trials exist for Asparagus adscendens in the treatment of cough. Therefore, the use for spastic cough is primarily justified by tradition and ethnomedicinal practices rather than rigorous modern research.