dose adjusting Metoprolol

50 mg of Metoprolol brings my blood pressure down too much to where I am very drowsy.

My cardiologist advised I try half , which was too little, so I went with a half, and half a half, for a 3/4 of a 50 mg dose.  This worked well for a long time.  I later had to reduce more, and split the 1/4 in half, for an effective 5/8 dose.

I just reduced again recently, now taking mainly a half dose at 25 mg.

Has anyone else had drowsines issues with it ?