Skullcap (Scutellaria lateriflora ) is a plant native to the US and Europe. Chemicals in skullcap might cause sleepiness.

This herb has been used as an alternative medicine to help reduce inflammation, provide relief from spasms, stimulate blood flow in the pelvic region, help eliminate headaches, reduce fever and induce relaxation. It’s been thought to improve conditions such as epilepsy, insomnia, hysteria and anxiety.