rebound

https://doi.org/10.1351/goldbook.12043
Reappearance of original symptom(s), often exacerbated, following cessation of treatment.
Source:
PAC, 2015, 87, 841. (IUPAC Glossary of terms used in neurotoxicology (IUPAC Recommendations 2015)) on page 901 [Terms] [Paper]