Thioridazine
Thioridazine
Thioridazine
Common use
Mellaril has active component is thioridazine and it belongs to a group of medicines to so called
phenothiazines.
It is used to treat psychotic disorders such as schizophrenia. It changes the actions of chemicals in your brain.
Dosage and direction
Take the medicine as prescribed by your doctor. Take with food to reduce stomach irritation if stomach upset
occurs. Continue to take the medicine even if you feel well.
Precautions
Use the medicine with caution. It can cause dizziness, drowsiness or lightheadedness. Avoid taking alcohol. Sit
up or stand slowly. Avoid situations where injury could occur because of fainting. If chest pain occurs or worsens
contact you doctor. If you have to have any surgery, tell your doctor that your are using Mellaril. Elderly patients
can be more sensitive to its side effects.
It's not recommended to use it during pregnancy or breastfeeding.
Contraindications
You should not use it if you have: allergy to it; you have a decreased level of consciousness; severe high or
low
blood pressure; low levels of potassium in the blood; abnormal heart function test (ECG), or a history of certain
heart problems (eg, irregular heartbeat, congenital long QT syndrome); you have a genetic problem that leads to
decreased levels of the P-450 2D6 isozyme in your body; you are taking antiarrhythmics (eg, amiodarone, quinidine),
cisapride, dofetilide, H1 antagonists (eg, astemizole, terfenadine), pergolide, pindolol, propranolol, sparfloxacin,
selective serotonin reuptake inhibitor (SSRI) antidepressants (eg, fluoxetine, paroxetine, fluvoxamine),
streptogramins (eg, dalfopristin), or medicines that may affect your heartbeat.
Possible side effect
The most common side effects are: bizarre dreams, constipation, agitation, diarrhea, dowsiness, dizziness,
stuffy
nose, dry mouth, vomiting, loss of appetiate.
Severe side effects include: severe allergic reactions (rash; hives; difficulty breathing; tightness in the
chest; swelling of the mouth, face, lips, or tongue); changes in menstrual period; changes in sexual ability; chest
pain; confusion; dark urine; difficulty swallowing; drooling; fainting; fast, slow, or irregular heartbeat; fever,
chills, or sore throat; hyperactivity; involuntary movements or spasms of the arms, legs, tongue, face, mouth, or
jaw;
mask-like face; muscle restlessness; restlessness; seizures; severe or persistent dizziness; severe constipation;
shuffling walk; sleeplessness; sore mouth or gums; stiff or rigid muscles; stomach pain; sweating; swelling of the
hands or feet; trouble urinating; unusual bruising or bleeding; unusual eye movements or inability to move eyes;
unusual mood or mental changes, including lack of response to your surroundings; vision changes; weakness of arms or
legs; yellowing of the skin or eyes.
Drug interaction
Tell you doctor if you take the following medications: anticholinergics (eg, atropine) because they may
decrease
the effectiveness of Thioridazine; antiarrhythmics (eg, amiodarone, quinidine), arsenic, beta-blockers (eg,
propranolol), cisapride, dofetilide, droperidol, H1 antagonists (eg, astemizole, terfenadine), haloperidol,
ketolides
(eg, telithromycin), macrolide antibiotics (eg, erythromycin), pimozide, pindolol, quinolones (eg, sparfloxacin,
levofloxacin), serotonin norepinephrine reuptake inhibitors (eg, duloxetine), serotonin receptor antagonist
antiemetics (eg, dolasetron), SSRI antidepressants (eg, fluoxetine, paroxetine, fluvoxamine), streptogramins (eg,
dalfopristin), ziprasidone, or other medicines that may affect your heartbeat because risk of severe and possibly
fatal side effects, including severe irregular heartbeat, may be increased.
Ask your doctor or pharmacist if you are unsure if any of your medicines may affect your heartbeat: atropine,
barbiturates (eg, phenobarbital), narcotics (eg, codeine), or tricyclic antidepressants (eg, amitriptyline) because
risk of side effects may be increased.
Missed dose
If you miss a dose, take it as soon as possible. If it is almost time for your next dose, skip the missed dose
and go back to your regular dosing schedule. Do not take 2 doses at once.
Overdose
Symptoms of overdose are seizures, sever drowsiness, muscle spasms, deep sleep or loss of consciousness; fast,
slow, or irregular heartbeat; tremors; trouble urinating; twitching. If you experience one of them call your doctor
immediately.
Storage
Store it at room temperature, between 59 and 86 degrees F (15 and 30 degrees C), in a tightly closed container.
Store away from heat, moisture, and light. Do not store in the bathroom. Keep it out of the reach of children and
away
from pets.