It's probably .25mg instead of 25mg...
The maximum dosage is 4mg per day? I think people go higher than that with it and it is prescribed higher as well. It is nasty stuff and in my opinion the FDA needs to change the labels or ban these benzodiazepines, like Xanax. The UK is getting close to banning them. I think the medical community/drug companies made a huge mistake with this class of drugs and it is coming back to haunt us.
Are you SURE it's 25 mg of xanax??? The maximum dosage is FOUR mg/day. You must have made a mistake, no doctor would EVER put a person on that much -- it would probably be deadly. Did you mean 2.5 mg/day?
Buspar is a much better long term solution to anxiety than xanax because xanax is addicting, and hard to stop. The toprol may effect your mood somewhat, but should not cause a depression.