Acetylcysteine (NAC), when used together - not separately - cause
The Combination of Bromelain and Acetylcysteine (BromAc) Synergistically Inactivates SARS-CoV-2 by Department of Surgery, St. George Hospital, Sydney, NSW 2217, Australia
“VMAT2 codes for a vesicular monoamine transporter that plays a key role in regulating the levels of the brain chemicals
"It's a pump. A teeny-tiny pump responsible for packaging a neurotransmitter for export during brain activity. Yes, it's important, and it may even be active and necessary during higher order processing, like religious thought.