• Basic Info
• Top Questions
• Interactions

How should I take mesoridazine?

Take mesoridazine exactly as directed by your doctor. If you do not understand these instructions, ask your pharmacist, nurse, or doctor to explain them to you.

Take each dose with a full glass (8 ounces) of water. Mesoridazine can be taken with or without food or milk.

Mix the concentrate with 2 to 4 ounces of water, noncola soda, juice, milk, or semisolid food such as applesauce or pudding.

Do not mix the liquid with coffee, tea, or cola.

Do not let the liquid touch your skin or clothes.

Do not stop taking mesoridazine without first talking to your doctor. It may be several weeks before you begin to feel better, and you may require continuous treatment for quite some time.

Throw away any discolored liquid.

Store mesoridazine at room temperature away from moisture and heat. Store the liquid in a light-resistant container.

What happens if I miss a dose?

Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the dose you missed and take only your next regularly scheduled dose. Do not take a double dose of this medication.

What happens if I overdose?

Seek emergency medical attention.

Symptoms of a mesoridazine overdose include uncontrollable movements, agitation, seizures, severe dizziness or fainting, coma, very deep sleep, irregular heartbeats, and high or low body temperature.

What should I avoid while taking mesoridazine?

Use caution when driving, operating machinery, or performing other hazardous activities. Mesoridazine may cause dizziness or drowsiness. If you experience dizziness or drowsiness, avoid these activities.

Dizziness may be more likely to occur when you rise from a sitting or lying position. Rise slowly to prevent dizziness and a possible fall.

Mesoridazine may interact with other drugs that cause drowsiness, including alcohol, antidepressants, antihistamines, pain relievers, anxiety medicines, seizure medicines, and muscle relaxants. Dangerous sedation, dizziness, or drowsiness may occur if mesoridazine is taken with alcohol or any of these medications. Talk to your doctor before taking mesoridazine in combination with alcohol or any other prescription or over-the-counter medicines. Avoid prolonged exposure to sunlight. Mesoridazine may increase the sensitivity of your skin to sunlight. Use a sunscreen and wear protective clothing when sun exposure is unavoidable.

What are the possible side effects of mesoridazine?

If you experience any of the following serious side effects, stop taking mesoridazine and seek emergency medical treatment:

• an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives);

• uncontrollable movements of the mouth, tongue, cheeks, jaw, arms, or legs;

• fever;

• muscle rigidity;

• muscle spasms of the face or neck;

• sweating;

• irregular pulse;

• fast or irregular heartbeats.

• severe restlessness or tremor;

• severe drowsiness;

• blurred vision;

• dizziness or fainting; or

• a rash.

Other, less serious side effects may be more likely to occur. Continue to take mesoridazine and talk to your doctor if you experience:

• dry mouth or stuffy nose;

• constipation;

• mild restlessness, drowsiness, or tremor;

• difficult urination or dark urine;

• decreased sex drive;

• increased appetite; or

• menstrual irregularities or swollen breasts.

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.