Parallel World Pharmacy

Parallel World Pharmacy is also listed as Isekai Yakkyoku on some trackers — same show, different title convention. diomedéa is the animation studio behind this TV series across 12 episodes. The run is complete — no gaps waiting on new episodes.

On the shelf it sits under Fantasy — worth knowing if you're comparing fantasy anime specifically. If Parallel World Pharmacy works for you, Paprika and Ascendance of a Bookworm are close matches — see the full related list below.