"i&#039;ve been taking ambien for many years. the first year, i was prescribed 10 mg nightly. i had experienced a &quot;deep sleep&quot; and through the entire night. for the first time in my life, i didn&#039;t feel exhausted the next day. then my dosage was changed to 5 mg, which was tough! my tolerance to the higher dose made it not work. my dr. gave me something different to substitute while my body adjusted. it&#039;s not been 2 years, that i&#039;ve been taking the 5 mg. i also take adderall xr @ 20 mg daily and 20 mg of prozac. during the last 6 months, i&#039;ve had difficulty with memory. being able to recall things i read, appointment times, things people had said to me. i am 52 years old, and i understand that comes with age. but has anyone had similar problems?"