What is this pill - with '44 323' imprint?

Pill imprint 44 329 has been identified as Diphenhydramine hydrochloride 25 mg.

Diphenhydramine is used in the treatment of allergic reactions; insomnia; extrapyramidal reaction; cold symptoms; cough (and more), and belongs to the drug classes anticholinergic antiemetics, anticholinergic antiparkinson agents, antihistamines, miscellaneous anxiolytics, sedatives and hypnotics.

pill image: https://www.drugs.com/imprints/44-329-8011.html

Generic Name: diphenhydramine (DYE fen HYE dra meen)
Brand Names: Allermax, Banophen, Benadryl, Compoz Nighttime Sleep Aid, Diphedryl, Diphenhist, Dytuss, Nytol QuickCaps, Silphen Cough, Simply Sleep, Sleepinal, Sominex, Theraflu Thin Strips Multi Symptom, Tranquil, Triaminic Thin Strips Allergy, Twilite, Unisom Sleepgels Maximum Strength, Valu-Dryl, Z-Sleep plus many others.

https://www.drugs.com/diphenhydramine.html