Bitter Drink

The  is a makeshift healing consumable item in Fallout: New Vegas.

Characteristics
Primarily carried by Legion troops, the Bitter Drink is a useful healing item that is believed to be created from Healing Powder and Nuka Cola, though accounts vary as to its actual contents. What is not a matter of debate is how effective it is - it is roughly twice as strong as Healing Powder and without the usual side-effects that come from the use thereof - making it a highly effective means for replenishing your health outside of combat (assuming a high Survival skill, if allowed to heal its full amount over time, it can heal more than a Stimpack).

Only a few healing items actually recover more HP over time, and all of those that are are crafted or are otherwise uncommon sights; Brahmin Steaks, Nuka-Cola Quartz, Nuka-Cola Victory, making the Bitter Drink somewhat unique. Bitter Drinks count as a Chem, rather than a food, and are weightless in your inventory unless playing Hardcore mode.

Bitter Drinks are good for when you combat poisonous creatures and lack an Antivenom. The HP regeneration from a Bitter Drink can offset a poison effect's ongoing damage, ergo increasing your chances of survival and freeing up resources for that critical emergency healing only Stimpacks can provide.