What is a small white pill with H on 1 side and 10 on the other?

The small white pill with an "H" on one side and "10" on the other is identified as Hydrocodone bitartrate 10 mg, which is an opioid pain medication. It is commonly prescribed for the management of moderate to severe pain. As with all opioids, it should be used under a doctor's supervision due to the risk of addiction, misuse, and side effects. If you have found this pill and are unsure of its use, it's important to consult a healthcare professional.