25 mg extended release, which is obviously not enough, though I feel great in terms of strength and alertness and stamina, that were all seriously diminished when I was taking Propranolol. So, now I am wondering: I definitely need to go up at least to 50 mg, but should I do a 50 mg Metoprolol once a day, or can I take the 25 mg tablets twice a day (every 12 hours).