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A 21-year-old female asked:

how fast does zyprexa (olanzapine) start working?

2 doctor answers2 doctors weighed in
Dr. Stuart Hickerson
Family Medicine 32 years experience
Kinetics: Zyprexa (olanzapine) when taken orally peaks at 6 hours after taking. When given as a shot the onset is whithin 15 to 45 minutes.
Dr. Robert Grindstaff
Addiction Medicine 38 years experience
Zyprexa (olanzapine): should begin to work i 1 - 2 weeks.

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A 30-year-old member asked:

Why does zyprexa (olanzapine) relprevv have to given in the butt?

3 doctor answers9 doctors weighed in
Dr. Susan Uhrich
Psychiatry 36 years experience
Zyprexa (olanzapine) Relprevv: Is an injection designed to release slowly into the blood stream over a 4 week period. As such, it is designed to be given deep intramuscularly. Your bicps, where most other injections are given, are not big enough.
A 37-year-old member asked:

Side effects of zyprexa (olanzapine)?

2 doctor answers8 doctors weighed in
Dr. John Benson
Psychiatry 41 years experience
Zyprexa (olanzapine) side effects: Like other antipsychotic meds, zypr can cause weight gain, elevated triglycerides, cholesterol and fasting blood sugar. Some liver strain could show up as incr in liver enzyme numbers. It can cause tight, twitchy or restless muslces, called eps and akathesia, relieved by side effect meds like Benadryl (diphenhydramine) or cogent in. Higher doses: tired or sedated, so take at bedtime. Rare: drop in blood cell count.
A 37-year-old member asked:

Is it true that olanzapine is an experimental medicine?

1 doctor answer1 doctor weighed in
Dr. Alan Ali
Dr. Alan Ali answered
Psychiatry 32 years experience
Olanzapine: Zyprexa (olanzapine) has been around for a while, used as an antiosychotic.
A 37-year-old member asked:

How long does it take zyprexa (olanzapine) to begin working?

1 doctor answer4 doctors weighed in
Dr. Mark Reynolds
Psychiatry 33 years experience
It depends: That would depend to some extent on the condition being treated, the dosing used, and the delivery method (oral vs im). In general the earliest effect would be in about 3-7 days with further increase in effect over the next 4-6 weeks.
A 33-year-old member asked:

What are the therapeutic levels of olanzapine?

1 doctor answer3 doctors weighed in
Dr. Mark Reynolds
Psychiatry 33 years experience
20-40 ng/ml: Is cited, however Olanzapine blood levels are not routinely done in clinical practice as it does not have a widely accepted therapeutic level. On label dosing is up to 20 mgs daily, but dosing is frequently higher and there have been studies in treatment resistant schizophrenia using 50 mg daily.

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Last updated Jun 29, 2019
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