for several years I have taken Zolpidem 10mg to help me gt=et to sleep;
I have started increasing the dosage ti 15 mg because of tolerance '

My base problem is having to orally take 15mg of hydrocortisone (10 at breakfast and 5mg at lunch.
I have no anterior pituitary due to tumor removal in 1995,
Is there another drug that might work better than Zulpidem? Or shoo;d I continue to increase the dose. I am78 yrs old and have no side effects from taking Zopidem.