If I understand dosage equivalencies for Beta-Blockers, then 20mg of Bystolic
once daily is equal to 100mg Metoprolol twice a day
I know the Metoprolol seemed like a
high dose, but 150mg was in the middle, dosage-wise. There are people who take 400mg a day.
I was taking it twice a day to get the full effect for 24 hours (Metoprolol takes about an hour to get in your system and has a half-life of 6-7 hours), so yeah, while it sounded like a 300mg, it was really just 150mg per 24 hours.