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    Ziprasidone Encyclopedic
    Encyclopedic
    Typical encyclopedia coverage. Cross-reference for important decisions.
    • 2 corroborating sources
    • 2 ROAs with full dose ladders
    • duration data present
    • PubChem toxicity data
    • dose data not in PW/TripSit (unverifiable)

    Aliases: Geodon, Zeldox, Zipwell

    Summary dose.wiki

    Oral bioavailability doubles when taken with food; dosing on an empty stomach delivers only ~36% of the intended exposure, leading users to redose unnecessarily. Therapeutic QTc prolongation averages 10-20 msec, but heavy recreational doses (>160 mg/day) or IV diversion markedly increases torsade risk. IM ziprasidone reaches Cmax within 60 minutes and has a 2-5 hour half-life, making it a common ER 'trip-stopper'.

    Dose Information dose.wiki Drugs.Wiki

    Dose basis. Take with a meal of at least ~500 kcal; fasting or low‑calorie meals (≈250 kcal) reduce exposure by ~60–90% vs ≥500 kcal meals and can lead to unpredictable underdosing and compensatory redosing. Fat content is not the key determinant; total calories are. Splitting doses BID with food improves exposure consistency. Evidence is from randomized PK studies and sequential food‑effect trials. For acute agitation only; deep IM use, not IV. Contains sulfobutylether β‑cyclodextrin (SBECD); use caution in significant renal impairment. Typical dosing 10–20 mg per injection; max 40 mg/day (e.g., 10 mg q2h or 20 mg q4h). Avoid combining IM with oral ziprasidone and avoid IV administration. Tmax ≈ 60 min; mean IM t1/2 ≈ 2–5 h. (Dose figures and this note are from Drugs.Wiki.)

    ROA Light Common Strong Heavy
    Oral 10-40mg 40-80mg 80-120mg 120mg+
    Intramuscular 5-10mg 10-20mg 20-40mg 40mg+
    Light Common Strong Heavy

    Onset, Duration & After-effects dose.wiki Drugs.Wiki

    ROA Onset Comeup Peak Offset After Effects Total
    Oral 1-3 hrs 1-2 hrs 3-6 hrs 2-4 hrs 6-24 hrs 7-15 hrs
    Intramuscular 15-30 min 30-60 min 30-90 min 2-4 hrs 6-24 hrs 3.25-7 hrs

    Add to PsychonautWiki Journal

    The PsychonautWiki Journal logging app doesn't include every substance. To track Ziprasidone there, start adding an ingestion, search for the name, and choose to add it as a custom substance. Paste these values:

    ⬇ Download import file Import this file as custom substances and you get "Ziprasidone (Substance Search)" with every route's full dose ladder and timeline, no typing. Works on iOS and Android (v15+); the format is confirmed by the app's developer. The manual values below work for older versions.
    Name
    Ziprasidone
    Unit
    mg
    Description
    Ziprasidone
    Source: SubstanceSearch (substancesearch.com)
    
    Oral dose (mg): threshold 10 · light 10-40 · common 40-80 · strong 80-120 · heavy 120+
    Intramuscular dose (mg): threshold 5 · light 5-10 · common 10-20 · strong 20-40 · heavy 40+
    
    Oral duration: onset 1-3h · come-up 1-2h · peak 3-6h · offset 2-4h · total 7-15h · after-effects 6-24h
    Intramuscular duration: onset 15-30m · come-up 0.5-1h · peak 0.5-1.5h · offset 2-4h · total 3.25-7h · after-effects 6-24h
    
    Note: ranges are harm-reduction guidance, not a prescription. Start low, go slow, and test your substances.

    Tip: for quicker logging you can also add a Custom Unit in the app, e.g. common dose ~ 60 mg (Oral).

    The app keeps custom substances simple, so the full dose ranges live in the description text above. Ranges are harm-reduction guidance, not a prescription.

    Tolerance

    Build-up develops over 1–4 weeks of regular use
    Reset days to weeks depending on duration of use

    Tolerance Decay

    Half tolerance 3d Baseline ~14d

    Sedative tolerance commonly develops over ~5–7 consecutive nights and recedes over 1–2 weeks off; antipsychotic efficacy tolerance is not a standard concept, but sedation/EPS sensitivity changes with exposure.

    Effects dose.wiki

    Positive
    • Stimulation
    • Physical Euphoria
    • Pain Relief
    Negative
    • Akathisia
    • Restlessness
    • Motor impairment
    • Sweating
    Neutral
    • Sedation
    • Somnolence
    • Itchiness
    Positive
    • Anxiety suppression
    • Reduced anxiety
    • Euphoria
    Negative
    • Emotion suppression
    • Motivation suppression
    • Motor control loss
    • Cognitive fatigue
    • Dizziness
    • Thought deceleration
    • Constipation
    Negative
    • Light sensitivity
    • Disinhibition
    • Appetite Suppression
    • Decreased Libido
    • Orgasm Suppression
    • Acuity Suppression
    Neutral
    • Dulled perception
    • Increased sexuality
    • Visual and auditory hallucinations

    Community Trip Reports

    Anecdotal first-person accounts from Reddit, Erowid, and Bluelight. Click a source to expand. Reports are harm-reduction context, not medical guidance. Tags summarise each author's own verdict — how reports are classified.

    Erowid 2 reports 1 neutral 1 cautionary visit
    Only for People That Need It cautionary exp #68500

    Well I had a drug problem which landed me in jail. I spent 7 months in the county jail and was not done with drugs just yet so I would take whatever guys on prescription meds would get. Anyway we had this kid that would get up off his bunk and inch forward bent over about 5-10 feet here and there at odd times.

    Greg F · Ziprasidone (Geodon) · 1 capsl oral / 1 capsl oral
    What's Is This Shit? neutral exp #53794

    I recently started taking geodon. Almost 15 minutes after I popped my fist pill I felt the effects. There was tingling feeling in my arm and legs. When I sat down my feet wanted to move. It felt great. I couldn't stop smiling and I was laughing at serious things that are not funny.

    Greg · Ziprasidone (Geodon) · 20 mg oral / oral / oral / oral

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