What pill have the word Dan one one side and 5381 on the other?

What pill have the word Dan one one side and 5381 on the other?
Looks like this is a methocarbomol pill surrounded by 500 mg dosage - it's listed as Robaxin
"Methocarbamol Tablets are indicated as an nouns to rest, physical therapy, and other measures for the nouns of discomforts associated with acute, throbbing musculoskeletal conditions. The mode of action of this drug have not been clearly identified, but may be related to its sleeping pill properties. Methocarbamol does not directly relax on edge skeletal muscles in man."
Could be robaxin, a muscle relaxant.
Sorry alternative tablets isn't associated to drugs. Try going back to condition.