Olanzapine: dosing, timing and what to expect
Highly effective for mania — and the heaviest metabolic footprint in its class, which is why olanzapine and a GLP-1-class drug increasingly share a protocol.
Also known as Zyprexa
Olanzapine quick start
- Route
- Oral
- Typical dose
- Physician-set — commonly 5–20 mg/day
- Frequency
- Daily
- Half-life
- ~30 hours.
- Cycle
- Continuous under physician supervision.
How to run it
- How often
- Daily
- Cycle length
- Continuous under physician supervision.
- Half-life
- ~30 hours.
- Route
- Oral
What to expect
Most people tolerate Olanzapine well. Here is what is worth knowing going in, so nothing catches you by surprise.
Known interactions
Interactions involving Olanzapine's drug class that DoseIQ screens for. Each one cites where it comes from — an FDA label section or the published record — because an interaction warning you can't trace is just noise.
Trazodone, gabapentin, micronized progesterone — each mild alone, cumulative together.
What to do: Time them all at night, and judge morning grogginess honestly.
Source: Class pharmacology
Olanzapine and quetiapine drive weight and glucose up; GLP-1-class drugs are increasingly co-prescribed to counter exactly that.
What to do: Usually intentional — the job here is tracking: fasting glucose, HbA1c and lipids tell you whether the plan is working.
Source: Class pharmacology; current prescribing practice
Preparing it
This page is an educational research reference and is not medical advice. Dose figures reflect the published record and what the community has converged on — starting points to weigh, not instructions. Consult a qualified healthcare provider before starting any protocol.