According to theD&D 5E Dungeon Master’s Guideand Player’s Handbook,using a magical potion of any kind costs an Action. This is true whether the potion is being used on another character or if the user is drinking it themself. It bears mentioning that using a potion isn’t covered under...
What to do with that extra action slot? Why not chug a Potion of Fire Breathing and channel your inner Godzilla? The Beast’s Bite provides a trickle of healing once per turn if you are below half HP when you land the attack.
Experimental Elixir gives an extra potion (or more at higher levels and/or by spending spell slots). Some of these can be really helpful, such as adding a d4 bonus to every roll for a minute. Sadly, you don’t get to choose which potions you’re given, and must roll randomly on a...
Potion of Vitality Source: Dungeon Master's Guide Potion, very rare When you drink this potion, it removes any exhaustion you are suffering and cures any disease or poison affecting you. For the next 24 hours, you regain the maximum number of hit points for any Hit Die you spend. The ...