My husband has Lewy Bodies, is on Sinemet and was on Quetiapine (75 mg.) He was put on the Quetiapine for troublesome hallucinations, yet it seemed to cause severe hallucinations, confusion and paranoia. I reduced the Quetiapine down to none last night. He was, in the meantime yesterday, put on levothyroxine 50 mg for hypothyroidism (diagnosed in a yearly physical, Tuesday). He took that yesterday (Wed.) about 2 pm. He got up to go to the bathroom 2 times during the night. This a.m. he got dizzy and couldn't get up and walk for a while. I got him up and he is now walking at the low gait he usually walks. My question - does levothyroxine sometimes cause dizziness?