Isekai yakkyoku 4
| Volume Title | Isekai yakkyoku 4 |
| Japanese Volume Title | 異世界薬局 4 |
| Light Novel | Isekai yakkyoku |
| Publisher | Media Factory |
| Light Novel Label | MF Books |
| Author | Takayama Liz |
| Illustrator | keepout |
| Target Readership | Male |
| Volume | 4 |
| Release Date | March 25, 2017 |
| Pages | 292 |
| ISBN-10 | 4040690885 |
| ISBN-13 | 978-4040690889 |
| Online Shops |