The phrase "administered since" is correct and usable in written English.
It can be used to indicate the starting point of an action or process that has been ongoing from a specific time in the past to the present.
Example: "The medication has been administered since January 2020 to ensure the patient's recovery."
Alternatives: "provided since" or "given since".
Only several hundred of the tests have been administered since, the officials said, because there is a limited supply of the antibodies needed for the test.
The Serbs refuse to admit that Slobodan Milosevic's repression of the ethnically Albanian majority lost them Kosovo, which has been administered since the NATO intervention in 1999 by the United Nations.
The latest Timss study, the world's largest review of math and science achievement, involved testing a representative sample of students in each country in 2007, the first time the tests had been administered since 2003.
It has been offered annually since 1932 (and sporadically before that) as part of a grueling, multiday affair that, in one form or another, has been administered since 1878 and has been called the hardest exam in the world.
Extraordinary revenues had been administered since the 1350s in districts (élections), whose numbers had vastly increased since the time of Charles V. The élections were now subordinated to four regional généralités, corresponding to the offices of treasury.
The history of the Kingdom of Saudi Arabia begins properly on September 23, 1932, when by royal decree the dual kingdom of the Hejaz and Najd with its dependencies, administered since 1927 as two separate units, was unified under the name of the Kingdom of Saudi Arabia.
But whether in the United States, Europe, or elsewhere, the big doses of monetary stimulus of the sort the Fed has been administering since the global financial crisis erupted five years can go only so far in healing sick economies.
Moreover, as compared to other methods like observation or TAPs they are easy to administer since the raters who might refuse to be observed while they are at work or decline to verbalise their thoughts while evaluating essays agreed to be interviewed.
When CR4056 and morphine were co-administered, since these drugs induce their analgesic effect with a different temporal response, we synchronized the peak effect of each drug by administering CR4056 1 h before morphine.
The AIMS2-SF is easier for the patients to administer since it consists of fewer questions, 26 instead of 57.
The brief version of the LQOLI to be used is reportedly easier to administer since clients are often more receptive to answering fewer questions.
