Compatible with 1.32, 1.31

Disables the visual potion/decoction drinking effects for a more natural, immersive experience.  The visual effects are the bright wave on Geralt and the screen flash.  The sound effect remains.

Installation

Extract the .zip to your The Witcher 3\mods folder.

This mod changes the playerWitcher.ws file.  I don't think it will mortally conflict with other mods but who knows.  However, many mods do also change playerWitcher.ws so you may have to merge this with other mods.  In that case, use the excellent tool Script Merger.
This is a very simple mod.  All I did was comment out line 6661 in playerWitcher.ws which is located in:
The Witcher 3\content\content0\scripts\game\player

My Other Mods

No Consumable Autofill
No Save Indicator Icon
No Crosshair - Pure E3 Aiming
No Hit Effect