HiWelcome to Just AnswerNo, both these drugs belong to same class and should not be used together.
If Lorazepam is not working, there must be a reason behind it.
First, you might be taking inadequate dose.
Second, you might have developed tolerance to this drug.
In both cases, you must consult your treating physician for further clinical management.
I hope this clarifies and answers your question.
Kindest Regards XXXXX XXXXX luck.
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