Painkillers

Painkillers are a consumable item in Deus Ex: Human Revolution and Deus Ex: The Fall''.

Characteristics
Issued by the Eidos Pharmacists Association, these high efficiency pain remedies increase health. When taken, painkillers will raise the player's health by 25 points, up to the maximum of 200. Similar to other methods of healing, the effect is temporary; it won't deplete automatically, but it also will not regenerate past 100.

They are fairly common, and stackable up to 5, making them the most efficient consumable in healing capability, availability, and inventory space.