This turquoise, capsule pill imprinted with G 300 mg 5010 is a Clindamycin 300 MG Oral Capsule, per the NIH.
clindamycin hydrochloride is a human prescription drug. The active pharmaceutical ingredient is clindamycin hydrochloride and is classified as, "Decreased Sebaceous Gland Activity [PE], Lincosamide Antibacterial [EPC], Lincosamides [Chemical/Ingredient]."
This pill is made by Greenstone LLC.
There is 1 other turquoise pill that with a similar imprint: "G 300 mg 5010". They may be a different dosage of the same drug or a different drug entirely.