Seroquel: Subtle Prescriptions from Medical Professionals

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The active drug is quetiapine, commonly sold under brand names such as Seroquel and Seroquel XR, as well as by multiple generic manufacturers. Quetiapine belongs to the class of atypical antipsychotics.

In the United States it is approved for several conditions, including schizophrenia, the treatment of manic or mixed episodes associated with bipolar disorder, and as adjunctive therapy for major depressive disorder. Clinicians sometimes prescribe it off label for other disorders when clinically appropriate.

If you want to jump straight to safety topics, follow these links to Watchfulness and Safety advisories or Therapy lingering effects.

Dosage and available forms

Quetiapine is manufactured as immediate release tablets and, in some presentations, as extended release tablets. Common tablet strengths encountered in practice include:

• 25 mg
• 50 mg
• 100 mg
• 200 mg
• 300 mg

Dosing plans are individualized. Your prescriber will set a titration schedule and a maintenance dose according to diagnosis, age, treatment response, and tolerability.

Information to share with your health care provider before starting

Provide a full medical history and a complete list of all prescription and nonprescription medicines, supplements, and herbal products. Be sure to mention any history of the following:

• Epilepsy-related seizures or seizure disorder
• Parkinson disease
• Heart conditions, prior heart attack, or episodes of low blood pressure
• The metabolic disorder diabetes or symptoms of high blood sugar
• Kidney disease or liver impairment
• Thyroid disease processes
• Low blood cell counts
• Breast cancer history
• Eye conditions such as cataracts
• Problems with swallowing
• Recent head injury or brain tumor
• Personal or family history of suicidal thoughts or attempts
• Allergies to medications, foods, or additives
• If you are expectant, planning to conceive, or breastfeeding

How to use it quetiapine

• Take tablets orally with water. If you experience stomach upset, taking the dose with food may help.
• Follow the dosing schedule on your prescription label exactly. Do not increase the frequency without medical advice.
• Do not stop quetiapine suddenly without consulting your prescriber; a gradual taper is usually advised to prevent symptom recurrence. See Performance monitoring and Protective Protocols for more in depth details.
• If you are on the extended release XR formulation, swallow the tablet whole. Do not crush, chew, or divide XR tablets.
• Older adults are often more sensitive to sedative and blood pressure effects and may need lower doses.
• Pediatric use should be overseen by a specialist when indicated by the diagnosis.
• In case of suspected an accidental overdose, contact your local poison control center or land on the nearest emergency department immediately.
• For advice on a missed dose, see Dose has not been administered.

Missed dosing and administration guidelines

For a one dose was missed, take it as soon as you remember. If it is near the time of your next dose (for example within four hours), skip the one dose was missed and resume your regular schedule. Do not take two doses at the same time to replace a dose you skipped.

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Drugs and products usually avoided with quetiapine

Certain medications should not be combined with quetiapine due to serious intercommunication risk. Examples include:

• Thioridazine treatment option
• Pimozide also known as Orap
• Mesoridazine medicine
• Droperidol in medical practice
• Sparfloxacin pharmaceutical and grepafloxacin
• The medication halofantrine
• Cisapride, the GI prokinetic agent, is well known in its class.
• Chlorpromazine, a neuroleptic medication

Other medicines and substances that may alter quetiapine effects

• Bottle of alcohol, which can worsen sedation and impair coordination
• Strong CYP3A4 inhibitors such as ketoconazole, itraconazole, fluconazole, and voriconazole
• Some macrolide antibiotics like erythromycin
• Certain antiretroviral agents used for HIV treatment
• Grapefruit or grapefruit juice, which can increase plasma quetiapine levels
• CYP3A4 inducers such as rifampin and some anticonvulsants (carbamazepine, phenobarbital, phenytoin)
• Cimetidine used for acid related conditions
• Other antipsychotic medications
• Benzodiazepines and other central nervous system depressants
• Many antidepressant and anxiolytic medications
• Medications for diabetes and for hypertension
• Drugs used for Parkinson disease
• Systemic steroids like prednisone

This list is not comprehensive. Always tell your clinician and pharmacist every medicine, vitamin, and supplement you take.

Active monitoring and risk controls

• Therapeutic benefits may not be immediate and can take several weeks. Keep follow up visits so your clinician can evaluate response and adverse effects.
• Your prescriber may recommend baseline and periodic eye examinations.
• If you have been on quetiapine for some time, do not discontinue abruptly. A clinician will advise a tapering schedule if stopping is appropriate.
• Be watchful for new or worsening depression, suicidal thoughts, or sudden behavior changes, particularly after starting or changing the dose; report these immediately to your clinician.
• Quetiapine commonly causes drowsiness and decreased alertness. Avoid driving or operating heavy machinery until you know how the drug affects you. Stand up slowly from sitting or lying positions to reduce the chance of fainting.
• Avoid alcohol and consult your clinician before taking over the counter cold, allergy, or diarrhea medications because they can increase sedation.
• Your care team may monitor weight, blood pressure, fasting glucose, and lipid levels because quetiapine can affect metabolism.

Possible unwanted effects

Serious residual effects - seek prompt medical help

• Allergic reactions such as hives, rash, swelling of face, lips, tongue, or throat
• Difficulty breathing or swallowing
• Rapid, irregular, or pounding heartbeat
• High fever, sore throat, or unexplained bruising or bleeding
• Marked increase in thirst or urination suggesting high blood sugar
• Problems with coordination, speech, or walking
• Seizures
• Severe muscle stiffness or rigidity
• Recent development or progression of suicidal thoughts or behaviorss
• Involuntary, repetitive movements of the face, mouth, or limbs (tardive dyskinesia)
• Extreme fatigue or unexplained weakness

Regular undesirable effects - often mild and may improve

• Somnolence or vertigo
• Mouth dryness
• Difficult defecation
• Queasiness or slight stomach upset
• Weight gain disorder
• Variations in libido and sexual performance

If unintended effects are persistent or troubling, contact your health care provider to discuss management strategies or additional options for treatment.

Keeping materials in remote storage solutions reduce on site clutter. and disposing safely

• Keep drugs out of sight and out of reach for children.
• Store at normal room temperature, generally between 15 and 30 degrees C (59 to 86 degrees F).
• Do not use after the expiration date is reached. Dispose of unused or expired medicines through a drug take back program when available, or follow FDA guidance on safe disposal.

Other choices and brief comparisons

Depending on diagnosis, prior treatment response, side effect concerns, and medical comorbidities, other atypical antipsychotics may be considered. Readily available choice variations include:

• Risperidone (Risperdal and generics) - may be more activating and can elevate prolactin; moderate risk of movement unwanted reactions.
• Olanzapine (Zyprexa and generics) - effective for many but often linked to significant weight gain and metabolic changes.
• Aripiprazole (Abilify and generics) - partial dopamine agonist, generally less sedating and often has lower metabolic effects.
• Ziprasidone (Geodon and generics) - lower metabolic impact for many patients but must be taken with food and has QT interval considerations.
• Lurasidone and Latuda refer to the same drug - usually taken with food and is relatively weight neutral; used often in bipolar depression.
• Paliperidone (Invega) and asenapine (Saphris) - different formulations and tolerability profiles that may suit some patients.
• Clozapine (Clozaril) - reserved for treatment resistant schizophrenia; requires regular blood keeping track of metrics and enrollment in a special risk management program.

Choice of agent should be individualized after discussing benefits, risks, the act of monitoring needs, and costs in cooperation with your prescriber. For information on relative costs see Prices in the United States.

Cost outlook for the USA (USD)

The following are ballpark cash prices without insurance or discounts. Actual out of pocket cost varies by pharmacy, region, dose, and available assistance programs.

• Generic quetiapine IR 25 mg, 30 tablets: roughly 5 to 20 USD
• Generic quetiapine IR 100 mg, 30 tablets: roughly 8 to 30 USD
• Generic quetiapine IR 200 mg or 300 mg, 30 tablets: roughly 12 to 45 USD
• Brand Seroquel XR 200 to 300 mg, 30 tablets: often 400 to 900 USD or higher
• Generic ancillary choices such as risperidone or ziprasidone: frequently 5 to 40 USD per 30 tablets depending on strength
• Some brand diverse a substitute methods like aripiprazole or lurasidone: commonly 500 to 1200 USD per 30 tablets without insurance

Insurance coverage, manufacturer coupons, patient assistance programs, and pharmacy discount plans can substantially reduce costs. In general, generic immediate release formulations are far less expensive than brand extended release products.

Understanding legal standing and access rights in the United States

• Regulatory status: quetiapine is a prescription only medication in the United States and is not scheduled as a controlled substance under federal law.
• Prescribing: clinicians may issue electronic or paper prescriptions. Many pharmacies will dispense up to a 90 day supply where clinically appropriate and permitted by the prescriber and insurer.
• Telehealth: providers offering telemedicine may prescribe quetiapine when the encounter complies with state and federal telehealth regulations; requirements vary by state.
• Generic substitution: pharmacists commonly substitute an FDA approved generic for a brand name prescription unless the prescriber writes no substitution.
• Precautionary please heed the safety safety advisories: boxed safety advisories include increased risk of suicidal thoughts and behaviors in children, adolescents, and young adults, and increased mortality in elderly patients with dementia related psychosis; quetiapine is not approved for dementia psychosis.
• Driving and workplace safety: because quetiapine can impair alertness and reaction time, use that results in impairment may have legal or occupational consequences if it contributes to an accident or incident.
• Disposal: follow drug take back programs or FDA recommendations for safe disposal of unused medicines.
• Financial assistance: many manufacturers and independent organizations offer programs to help eligible patients with medication costs.

If you have questions about a prescription, substitution rights, or coverage, speak with your pharmacist or prescriber. State laws and payer policies can affect how quetiapine is dispensed and reimbursed.