Delta 8 THC is one of 80 cannabinoids identified in cannabis plants. Delta-8 THC is often used as a treatment for nausea and vomiting, but it can also be utilized to boost appetite. There are currently no FDA approved medications containing delta-8 THC. Delta-8 THC has also been used experimentally to treat migraines, pain, and insomnia. Delta-8 THC is a precursor to delta-9 THC, the psychoactive compound of marijuana. A disposable vape pen filled with a cartridge containing delta-8 THC can be purchased from some recreational cannabis dispensaries.