RecruitingDrug trialVerapamil for Neuroprotection in StrokeThe purpose of this research study is to test an experimental procedure called intra-arterial delivery of verapamil in patients diagnosed with acute ischemic stroke. This study investigates the safety of intra-arterial delivery of verapamil, a drug used to treat vasospasm (spasm of a blood vessel), and how it affects recovery from stroke. Recruitment is limited to patients that have received mechanical thrombectomy as standard of care.