Robuta

https://www.semanticscholar.org/topic/Verapamil-hydrochloride/161867
The hydrochloride form of Verapamil, which is a phenylalkylamine calcium channel blocking agent. Verapamil inhibits the transmembrane influx of extracellular...
verapamil hydrochloridesemantic scholar
https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=3c215e6c-d85a-4102-a1c2-f00fa3169a55&audience=consumer
verapamil hydrochlorideextended releasedailymedtabletfilm