Antidepressants Generic Loxitane Loxapine 10/25mg

Drug Uses

Loxapine is used to treat symptoms of schizophrenia, a mental disorder that affects thoughts, feelings, and behavior. It is particularly effective for managing agitation, hostility, and aggressive behavior associated with schizophrenia. Your doctor may prescribe it for other conditions as well.

Loxapine belongs to a class of medications called first-generation (typical) antipsychotics. It works by blocking dopamine receptors in the brain, specifically D2 and D3 receptors. Dopamine is a natural chemical (neurotransmitter) that affects behavior and thinking. By blocking these receptors, loxapine helps restore chemical balance, reduce symptoms of psychosis, and produce a calming effect.

Loxapine is structurally related to clozapine and is metabolized in the body to amoxapine, which has antidepressant properties. This may contribute to its unique therapeutic profile.

Do NOT use Loxapine if:

• You have allergic reactions to loxapine, other dibenzoxazepine compounds, or any other ingredients found in this medication.
• You are in a coma or have severely reduced consciousness (decreased awareness).
• You have severe depression caused by alcohol, barbiturates, or narcotics.
• You have certain medical conditions that make you susceptible to breathing problems or low blood pressure.

If any of these apply to you, consult your doctor immediately for advice on safer alternatives.

Before using Loxapine

Inform your doctor or pharmacist about your medical history and current situation, especially if any of the following apply to you:

• You are pregnant, planning to become pregnant, or breastfeeding. Loxapine may pass into breast milk and could harm a nursing baby. If used during the third trimester of pregnancy, the newborn may exhibit withdrawal symptoms such as agitation, breathing problems, or feeding difficulties.
• You are taking any other medicine, including prescription drugs, over-the-counter medicines, herbal supplements (especially betel nut), or vitamins.
• You have heart or blood vessel disease, including a history of heart attack, irregular heartbeat, or low blood pressure.
• You have a seizure disorder or epilepsy, as loxapine may lower the seizure threshold.
• You have liver disease, as loxapine is metabolized in the liver and can affect liver function.
• You have glaucoma (increased eye pressure).
• You have difficulty urinating or prostate problems (urinary retention).
• You have a history of breast cancer or prolactin-dependent tumors, as loxapine can increase prolactin levels.
• You have Parkinson’s disease or other movement disorders.
• You have a history of neuroleptic malignant syndrome (NMS), a rare but serious reaction to antipsychotic medications.
• You have blood disorders, such as leukopenia (low white blood cell count) or neutropenia.
• You have bowel blockage or brain tumor, as loxapine may mask symptoms.
• You are exposed to extreme heat, as loxapine may affect body temperature regulation.

There are certain medicines that may interact with Loxapine. These interactions can increase the risk of serious side effects. Tell your doctor if you are taking:

• Medicines that affect the central nervous system (CNS): Such as alcohol, sedatives, tranquilizers, sleeping pills, antihistamines, narcotic pain relievers, and anesthetics. These can increase drowsiness, dizziness, and impaired thinking.
• Anticholinergic medicines: Such as atropine, scopolamine, benztropine, and trihexyphenidyl (used for Parkinson’s). These may increase the risk of severe dry mouth, constipation, blurred vision, and urinary retention.
• Lithium: Combining with loxapine may increase the risk of neurotoxicity, including extrapyramidal symptoms, weakness, and movement disorders.
• Carbamazepine: Loxapine may increase the risk of carbamazepine toxicity, leading to symptoms like ataxia, double vision, headache, and seizures.
• Tramadol: May increase the risk of seizures.
• Metoclopramide and bromopride: Combining with loxapine is not recommended due to increased risk of movement disorders.
• Phenytoin: Loxapine may accelerate phenytoin metabolism, reducing its effectiveness and potentially leading to seizure breakthrough.
• Blood pressure medicines: Loxapine may increase the blood pressure-lowering effects of certain medications.
• Levodopa and dopamine agonists: Loxapine may block the effects of these Parkinson’s medications.
• Antidepressants: Including SSRIs (like fluoxetine, paroxetine), SNRIs (like duloxetine), and tricyclics (like amitriptyline, nortriptyline). These may increase CNS depression and risk of serotonin syndrome in some cases.

This list is not complete. Always provide your doctor with a full list of everything you take to ensure safe and effective use of this medication.

How to use Loxapine

Take Loxapine exactly as prescribed by your doctor. Follow the instructions on the prescription label carefully. Do not change your dose or stop taking it without consulting your doctor first.

• Dosage for schizophrenia:
  • Adults: The usual starting dose is 20-50 mg per day, divided into two to four doses. Your doctor may gradually increase this based on your response. The usual effective dose is 50-100 mg per day. The maximum recommended dose is 250 mg per day.
  • Elderly patients: A lower starting dose of 12.5-50 mg per day is typically recommended, as elderly patients (especially women) are more sensitive to side effects.
  • Children: Safety and effectiveness in children under 16 years have not been established. Loxapine is not recommended for pediatric use.
• Administration: Take the capsules with or without food. Taking with food may help reduce stomach upset. If using the oral liquid form, measure only with the provided dropper and mix with orange juice or grapefruit juice before drinking.
• Onset of effect: Therapeutic effects may take several weeks to fully develop. Do not stop taking it even if you feel well, unless directed by your doctor.
• Missed dose: If you miss a dose, take it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not double the dose.
• Do not stop suddenly: Stopping this medication abruptly can cause withdrawal symptoms or worsening of your condition. Your doctor will likely recommend gradually reducing your dose.

Important safety information

• Increased mortality in elderly patients with dementia (Black Box Warning): Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death compared to placebo. Loxapine is not approved for the treatment of dementia-related psychosis.
• Tardive dyskinesia (TD): This medication can cause uncontrolled movements of the face, tongue, or other body parts. This condition may be permanent. The risk is higher in elderly patients, especially women, and with long-term use. Contact your doctor immediately if you notice lip smacking, tongue protrusion, grimacing, or uncontrolled chewing movements.
• Neuroleptic malignant syndrome (NMS): This is a rare but life-threatening condition. Symptoms include high fever, muscle stiffness, confusion, rapid heartbeat, and increased sweating. Stop taking loxapine and seek emergency medical help immediately if these occur.
• Extrapyramidal symptoms (EPS): Loxapine may cause Parkinson-like symptoms such as shakiness, stiffness, drooling, restlessness, and difficulty with movement or balance. Report these to your doctor.
• Drowsiness and alertness: Loxapine may cause significant drowsiness, dizziness, or blurred vision. Do not drive, operate heavy machinery, or perform tasks requiring alertness until you know how this medication affects you.
• Orthostatic hypotension: This medication may cause a drop in blood pressure when standing up, leading to dizziness or fainting. Rise slowly from sitting or lying positions.
• Blood disorders: Loxapine can lower white blood cell counts, increasing infection risk. Report any signs of infection such as fever, sore throat, or chills.
• Prolactin elevation: Long-term use may increase prolactin levels, causing breast enlargement, milk production, menstrual changes, or sexual dysfunction.
• Seizures: Loxapine may lower the seizure threshold. Use with caution if you have a history of seizures.
• Anticholinergic effects: This medication can cause dry mouth, constipation, blurred vision, and urinary retention. Drinking water, using sugarless gum, and increasing fiber may help.
• Heat stroke risk: Loxapine may affect body temperature regulation. Avoid overheating, dehydration, and strenuous exercise in hot weather.
• Urine discoloration: Loxapine may cause urine to turn pink, red, or brownish-red. This is harmless and normal.
• Eye effects: Long-term use may cause deposits in the cornea and lens. Regular eye exams are recommended.
• Elective surgery: Inform your doctor or dentist that you are taking loxapine before any surgery or dental procedure, as it may interact with anesthetics.

Possible side effects of Loxapine

Like all medicines, loxapine can cause side effects, although not everyone gets them. Common, less serious side effects may include:

Common: Drowsiness, dizziness, blurred vision, dry mouth, constipation, restlessness, weakness, weight gain, nausea, headache, nasal congestion.

Serious side effects requiring immediate medical attention:

• Signs of allergic reaction: rash, hives, itching, difficulty breathing, tightness in the chest, swelling of the face, lips, tongue, or throat.
• Signs of tardive dyskinesia: uncontrolled movements of the face, tongue, jaw, arms, or legs (lip smacking, tongue protrusion, grimacing, chewing movements).
• Signs of neuroleptic malignant syndrome (NMS): high fever, severe muscle stiffness, confusion, rapid heartbeat, increased sweating, irregular blood pressure.
• Signs of blood disorders: fever, chills, sore throat, unusual weakness or tiredness, frequent infections.
• Extrapyramidal symptoms: severe shakiness, tremors, muscle stiffness, drooling, difficulty speaking or swallowing, restlessness, pacing.
• Fast, pounding, or irregular heartbeat; chest pain; fainting.
• Severe dizziness or fainting upon standing (orthostatic hypotension).
• Seizures or convulsions.
• Difficulty urinating or urinary retention.
• Severe abdominal pain or constipation (possible signs of bowel blockage).
• Vision changes or eye pain.
• Yellowing of the skin or eyes (jaundice), dark urine (signs of liver problems).
• Prolonged or painful erection (priapism).

What is the shelf life of the pills?

The expiry date is mentioned on each blister or bottle. It is different for different batches. The shelf life is typically 2-3 years from the date of manufacture and may vary from batch to batch depending on when they were manufactured. Store at room temperature (68°F to 77°F or 20°C to 25°C) away from light, moisture, and heat. Keep out of reach of children and pets.

Disclaimer: The content on this blog is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or another qualified health provider with any questions you may have regarding a medical condition or treatment and before starting any new medication or changing your current treatment.