I take metoprolol at night. can i switch to morning?

In short yes: Yes you can switch the timing but depending on the dose, you can have increased heart rates if there is a prolonged period of time between doses and if there is a shorter period of time between doses, you may have some dizziness from low heart rate or blood pressure. I suggest to switch without side effects, split the dose in half(if not succinate form) and take twoce a day for one transition day