I am having a breast MRI and I am clausterphoic, will .5 mg of lorazepam be enough or do I need 2?

It is very difficult to tell how one person might metabolize any medication in comparison to another, however, it sounds as though your doctor has given you some reliable guidance. If I were in your shoes, my main concern would be related to whether I would need help driving/getting a ride home after the procedure.

A daily dosage may vary from one to ten milligrams, but the usual range is two to six milligrams per day... for someone who takes it every day.

For anxiety, an initial dose of two to three milligrams may be required.

It sounds as though your doctor has given you flexibility, so you can have what you need, OR take a minimal dose if that is all you may need.

If you are concerned about it not being enough or taking too much, maybe try something in the middle. You can always take less than he gave you an hour before you arrive, then take a second dose as you are getting robed.

Your doctor has prescribed this to you, and you should feel both confident that you are safe, but ALSO know that you are in control and don't have to take anything at all.

You're going to be okay. Stay strong.