Taking lorazepam for ovr a month 1 mg 3-4 times a day rapid hrt rate tsh 0.01 syn med adj.3 wks -no lorazepam now for 24 hrs hrt rt ok too much loraz?

Reformulate question: One would need to clarify if you meant your TSH is 0.01. In general, people tend to develop tachicardia when they stop the Lorazepam abruptly. At your age, this dose might affect your memory, although that is usually mild, if there is no previous memory impairment. I would suggest you discuss these issues with your precribing physician. Usually, a common dose is 2 mg daily.