Psyquit

✅ Manages schizophrenia
✅ Treats bipolar disorder
✅ Controls major depression
✅ Reduces anxiety symptoms
✅ Improves sleep quality

Psyquit contains Quetiapine

Artikelnummer: Ej tillgängligt Kategori: Kategoriöversikt, Kroniska tillstånd, Behandling av situationell ångest Tagg: Psyquit, Quetiapine

✓ Medicinskt granskad av Morgan Ellis — Apoteksforskare · 8 års erfarenhet · Senast granskad: maj 2026

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⚡ Quick Answer — What is Psyquit?

Psyquit innehåller quetiapine 25 / 100 / 200 mg (immediate-release) from a WHO-GMP certified manufacturer (Sun Pharma) — an atypical antipsychotic with broad use across schizophrenia, bipolar disorder, and treatment-resistant depression. Mechanism: D2 + 5-HT_2A antagonism plus prominent H₁ antihistamine action (heavy sedation) plus alpha-1 blockade (orthostasis). Doses span a huge range by indication: 25–100 mg HS (off-label insomnia, anxiety adjunct — controversial), 300–800 mg/day (schizophrenia, bipolar mania), 150–300 mg/day (bipolar depression, MDD adjunct). Major class warnings: metabolic syndrome (weight, glucose, lipids — class effect), heavy sedation, orthostatic hypotension, QT prolongation, EPS (lower than first-generation antipsychotics), and FDA black box for elderly dementia mortality.

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Important — this is not a situational-anxiety medication. Psyquit is a atypical antipsychotic, prescribed and titrated over weeks for schizophrenia, bipolar mania and depression, bipolar maintenance, and adjunctive treatment of major depressive disorder. It is inte the right drug for acute, performance-related anxiety (flying, public speaking, exams) — for those use cases beta-blockers (propranolol), benzodiazepines, or hydroxyzine are clinically appropriate. If you do not have a diagnosed mood, anxiety, or psychiatric disorder, do not start this medication.

FDA black-box warning — elderly dementia mortality. All antipsychotics (atypical and conventional) carry an FDA black-box warning for increased mortality when used to treat dementia-related psychosis or behavioural disturbance in elderly patients. This medication is not approved for dementia-related symptoms.

What Is Psyquit?

Psyquit is an oral immediate-release tablet of quetiapine fumarate 25 / 100 / 200 mg manufactured by Sun Pharma. Quetiapine (US brand Seroquel IR / Seroquel XR) is an atypical (second-generation) antipsychotic launched by AstraZeneca in 1997. It is a D₂ and 5-HT_2A antagonist with strong H₁ antihistamine and moderate alpha-1 antagonist activity. The H₁ blockade drives the prominent sedation; the alpha-1 blockade drives orthostatic hypotension; the 5-HT_2A antagonism reduces extrapyramidal side-effect risk compared with first-generation antipsychotics.

The IR (immediate-release) formulation reaches peak plasma in 1–2 hours, producing prompt sedation. Dose timing matters — sedation 1–3 hours after the dose can be either useful (insomnia adjunct) or limiting (daytime fatigue).

Approved Indications

Schizophrenia — acute and maintenance
Bipolar mania — acute (monotherapy or with lithium / valproate)
Bipolar depression — one of the few drugs FDA-approved for this; first-line in bipolar I depression
Bipolar maintenance — with lithium or valproate
Adjunctive treatment of MDD — XR formulation, 150–300 mg/day with an antidepressant
Off-label: insomnia (low dose 25–50 mg), anxiety (controversial — metabolic risk for non-psychotic anxiety), agitation in dementia (used with caution given black-box warning)

Dosing by indication

Indication	Start	Target	Maximum	Anteckningar
Schizophrenia (IR)	50 mg BID	400–800 mg/day	800 mg/day	Titrate over 4–7 days; XR allows once-daily HS dosing
Bipolar mania (acute)	100 mg/day × day 1, increase by 100 mg/day	400–800 mg/day	800 mg/day	Rapid titration to control mania
Bipolar depression	50 mg HS × day 1, then 100, 200, 300	300 mg/day at bedtime	300 mg/day	Standard maximum for this indication
MDD adjunct (XR only)	50 mg HS	150–300 mg/day	300 mg/day	Add to existing antidepressant; sedation often dose-limiting
Off-label insomnia	25–50 mg HS	25–50 mg HS	100 mg HS	Controversial — metabolic risk for sleep dose makes this a poor first choice; reserve for patients who have failed multiple alternatives
Elderly	25–50 mg/day, slower titration	—	Consider 200–300 mg/day max	Greater sedation and orthostasis — falls risk

Side Effects

Side-effect profile by mechanism

Mechanism	Effects	Notes / management
Metabolic (5-HT_2C + H₁ appetite drive)	Weight gain (often significant), increased blood glucose / new-onset diabetes, dyslipidaemia	Class warning — baseline weight, BP, fasting glucose, lipids; reassess at 3 months and annually
H₁ blockade	Heavy sedation, drowsiness	Useful at bedtime; often limiting during the day. Less peak sedation with XR
Alpha-1 blockade	Orthostatic hypotension, dizziness	Slow titration; check lying / standing BP
Anticholinergic (mild)	Dry mouth, constipation	Less than olanzapine
D₂ blockade	Extrapyramidal symptoms (akathisia, parkinsonism, dystonia)	Lower than first-generation antipsychotics; akathisia at higher doses
Annat	QT prolongation	Baseline ECG; caution with other QT-prolonging drugs
Sällsynt	Tardive dyskinesia	Lower risk than typical antipsychotics but real with long-term use
Sällsynt	Neuroleptic malignant syndrome	Hyperthermia, rigidity, autonomic instability — emergency
Sällsynt	Hyperprolactinaemia	Less than risperidone
Sällsynt	Cataracts	Lens monitoring controversial; some clinicians order 6-monthly slit-lamp exam

Läkemedelsinteraktioner

CYP3A4 substrate: levels rise with strong inhibitors (ketoconazole, ritonavir, clarithromycin) — reduce dose. Levels fall with strong inducers (rifampin, phenytoin, carbamazepine) — loss of efficacy.

Additive sedation: alcohol, benzodiazepines, opioids, sedating antidepressants.

QT prolongation: caution with citalopram (high dose), methadone, ondansetron, fluoroquinolones, ziprasidone.

Antihypertensiva läkemedel: additive orthostasis with alpha-blockers, ACE inhibitors, diuretics.

Anticholinergic burden: additive with diphenhydramine, oxybutynin.

Metabolic Monitoring

All atypical antipsychotics carry a class warning for metabolic syndrome — weight gain, dyslipidaemia, and impaired glucose tolerance. Quetiapine sits in the higher-risk group (with olanzapine and clozapine). Standard monitoring: baseline + 3 months + annually: weight / BMI, waist circumference, fasting glucose or HbA1c, fasting lipid panel, blood pressure. Consider a switch to a lower-metabolic-risk agent (aripiprazole, lurasidone, ziprasidone) if weight / glucose deteriorates.

Vanliga frågor

How long does Psyquit take to work?

Acute psychosis or mania symptoms often respond within days; full benefit at 4–6 weeks. Bipolar depression response typically appears at 1–3 weeks at the 300 mg target.

Why is Psyquit used for sleep?

Quetiapine 25–50 mg HS produces heavy sedation through H₁ blockade. Off-label sleep use has become widespread but is controversial — metabolic side effects accumulate even at low dose, and safer hypnotics exist.

Will Psyquit make me gain weight?

Likely yes — quetiapine is one of the more weight-gain-prone atypicals. Average weight gain at therapeutic doses is 4–7 kg over 12 months; some patients gain considerably more. Lifestyle interventions help; switching to aripiprazole or lurasidone may be needed if weight becomes problematic.

Is Psyquit safe in elderly patients with dementia?

FDA black-box warning for increased mortality in elderly with dementia-related psychosis or behavioural disturbance. Use only when behavioural and non-pharmacological strategies have failed and the symptoms are severe; lowest dose, shortest duration, with informed consent of family.

Can I drink alcohol on Psyquit?

Avoid — additive sedation and orthostasis. Even moderate alcohol substantially increases sedation and falls risk.

What is the difference between IR and XR quetiapine?

IR peaks at 1–2 hours; XR peaks at ~6 hours and allows once-daily dosing. IR has more peak sedation just after the dose; XR has a smoother profile. Daily AUC is similar at equivalent doses.

Will Psyquit cause extrapyramidal side effects?

Quetiapine has the lowest EPS risk among atypicals along with clozapine. Akathisia at higher doses is the most common motor side effect; tardive dyskinesia risk exists with long-term use but is much lower than first-generation antipsychotics.

Is Psyquit safe in pregnancy?

Limited data — quetiapine is one of the better-studied atypicals in pregnancy. Continuation is reasonable when needed for serious mental illness; first-trimester exposure does not appear to increase major malformation rates above baseline.

Can I stop Psyquit abruptly?

Better to taper, especially after long-term use — abrupt discontinuation can produce withdrawal dyskinesia, insomnia, nausea, sweating, and rebound psychosis or mania. Reduce by 25–50 mg every 1–2 weeks.

How should Psyquit be stored?

Store at 15–30 °C in the original blister packaging, away from moisture and sunlight. Keep out of reach of children.

Medical disclaimer: Information on this page is intended for adults using prescribed psychiatric medication and is not a substitute for individualised medical care. Antidepressants, antipsychotics, and related medications can interact with other drugs, alcohol, and pre-existing conditions. Discuss any new medication, dose change, or planned discontinuation with a qualified prescriber. If you experience suicidal thoughts, mania, severe akathisia, signs of serotonin syndrome (high fever, confusion, muscle rigidity, rapid heart rate), or neuroleptic malignant syndrome, seek emergency care immediately.