loading dose

https://doi.org/10.1351/goldbook.15203
Initial, typically larger than the maintenance dose of a drug given to a patient at the start of pharmacotherapy.
Note: The objective is to reach quickly the therapeutically beneficial plasma level. This is followed by smaller (maintenance) doses in order to maintain the plasma concentration.
Source:
PAC, 2009, 81, 971. (Glossary of terms related to pharmaceutics (IUPAC Recommendations 2009)) on page 989 [Terms] [Paper]