Answers by TheMediTary.Com - Last updated: 12-Jul-2023
The "half moon" you describe is the logo for Actavis Inc. Pill imprint Logo (Actavis) 26 has been identified as Amphetamine and Dextroamphetamine 20 mg. It is a generic version of Adderall used in the treatment of ADHD.
https://www.drugs.com/imprints/logo-actavis-26-22001.html Description: Peach, round tablet debossed with the Actavis logo over ‘26’ on one side; and scored and partial scored on the other side.