The "D" actually looks like a half moon... it is scored on one side... It also isn't a flat surface...
Pill imprint Logo 59 has been identified as Lorazepam 1 mg, used for the treatment of anxiety and related conditions.
It is the newer version of this pill R 59 https://www.drugs.com/imprints/r-59-7347.html which has the Actavis logo (like a half moon) instead of the R.
Description: Each white to off-white, round tablet debossed with the Actavis logo and 59 on one side and bisect on the other side, contains 1 mg of Lorazepam.
You can see what the Actavis logo looks like here: https://www.drugs.com/pill-logo-identification.html
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