The pill I have is white oval with and M (L) sidescored in the middle and B2 on the (R) side

Where did you find this?

I found the pill on the bedroom floor

Why don't you take it to the pharmacist to be properly identified and disposed of.

I would hate someone to make a serious mistake and tell you it is one thing and they be wrong. Please as a safety issure take this to your local drugist and have them do a possitive ID. They can also tell you what to look for in a overdose, or a user.

And if you merely found it on the street, perhaps throwing it away would be the proper thing to do.

Also whose bedroom floor are you concerned this was your house keepers ? Or maybe your child's bedroom floor?

Have you compared it to over the county or prescription medication that you and your family take ?

Who could have been in your bedroom with medication you don't take?