Experimental Pill
PillRepentanceUnlocked
How do you unlock Experimental Pill?
Verified starting unlockSource data confirms that no unlock is required.
Increases one attribute and decreases another randomly, with the same power as normal attribute up/down pills. Will not reduce any attributes if taken with Lucky Foot, PHD or Virgo. Will not increase any attribute if taken with n. If a pill-improving item is combined with False PHD, the pill gives an attribute increase, a decrease and a damage up.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking Experimental Pill leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13