This yellow, round pill imprinted with W 941 is a Lisinopril 20 MG Oral Tablet, per the NIH.
Lisinopril is a human prescription drug. The active pharmaceutical ingredient is lisinopril.
This pill is made by a total of 4 firms: (1) Wockhardt USA LLC., (2) Wockhardt Limited, (3) Preferred Pharmaceuticals, Inc, and (4) STAT Rx USA LLC
There is 1 other yellow pill that with a similar imprint: "W 941". They may be a different dosage of the same drug or a different drug entirely.