Stemetil - General Information:

A phenothiazine antipsychotic used principally in the treatment of nausea; vomiting; and vertigo. It is more likely than chlorpromazine to cause extrapyramidal disorders. (From Martindale, The Extra Pharmacopoeia, 30th ed, p612)


    Stemetil is a piperazine phenothiazine related to high-potency neuroleptics such as perphenazine. It shares many of the actions and adverse effects of the antipsychotics.

    Stemetil for patients


    This medicine is used to treat psychotic disorders such as hallucinations, delusions and hostility. Phenothiazine drugs may also
    be prescribed to prevent and treat nausea and vomiting.

    General Information

    This information is for educational purposes only. Not every known side effect, adverse effect, or drug interaction is in this
    database. If you have questions about your medicines, talk to your healthcare provider.

    Proper use of this medicine

    Take this medicine exactly as directed. Swallow extended-release capsules whole, do not open. Do not take more of this medicine
    than is prescribed by your doctor. If your doctor has given you a suppository, follow these steps: If the suppository feels soft,
    hold it under cold, running water for 1 minute. Dip the tip of the suppository in water. Lie down on your left side and raise your
    right knee to your chest. (A left-handed person should lie on the right side and raise the left knee.) Using your finger, insert
    the suppository into the rectum, about 1/2 to 1 inch in infants and children and 1 inch in adults. Hold it in place for a few moments.
    Stand up after about 15 minutes. Wash your hands thoroughly and resume your normal activities.

    Missed Dose

    Take your next dose as soon as you remember. If it is time for your next dose, skip the missed dose and go back to your regular
    schedule. Do not double doses.


    Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and
    away from excess heat and moisture. Throw away any medication that is outdated or no longer needed.

    Possible Side Effects

    Contact your health care provider if the following side effects become bothersome or don't go away; dizziness, drowsiness, dry mouth,
    rash, constipation, vision changes, difficulty urinating
    If you experience involuntary movements, sore throat, pounding heart beat, or unusual bruising or bleeding, notify your doctor at once.


    This medicine may cause drowsiness.
    Be cautious when driving or performing other hazardous activities. This medicine can impair judgment.


    Seek medical attention immediately. For non emergencies, contact your local or regional poison control center

    Drug Interactions

    Tell your doctor and pharmacist about all other medicines that you are taking, including non-prescription medicines, nutritional
    supplements, or herbal products.


    This medicine should be taken during pregnancy only when clearly needed. Talk to your doctor about the risks and benefits when using
    this medicine during pregnancy. This medicine may be excreted in breast milk. Nursing mothers are advised to talk to their doctors
    before breast-feeding.

    More Information

    For more information about this medicine, talk to your healthcare provider

    Stemetil Interactions

    Thiazide diuretics may accentuate the orthostatic hypotension that may occur with phenothiazines.

    Antihypertensive effects of guanethidine and related compounds may be counteracted when phenothiazines are used concomitantly.

    Concomitant administration of propranolol with phenothiazines results in increased plasma levels of both drugs.

    Stemetil Contraindications

    Do not use in comatose states or in the presence of large amounts of central nervous system depressants (alcohol, barbiturates, narcotics, etc.).

    Do not use in pediatric surgery.
    Do not use in children under 2 years of age or under 20 lb.
    Do not use in children for conditions for which dosage has not been established.

    Stemetil more info

    Indication, Mechanism Of Action, Drug Interactions, Food Interactions, etc..