Anti-Allergic/Asthma

Promethazine

Promethazine are used for relieving allergy symptoms, including hives or runny nose. It is used to prevent and control nausea and vomiting during and after surgery. It is also used to help produce light sleep; prevent and treat motion sickness; or treat pain after surgery, in combination with other medicines. It may also be used for other conditions as determined by your doctor.

Use Promethazine as directed by your doctor. Check the label on the medicine for exact dosing instructions.

Take Promethazine by mouth with or without food. If stomach upset occurs, take with food to reduce stomach irritation.

If you are using Promethazine for motion sickness, take a dose at least 30 to 60 minutes before you begin traveling.

If you miss a dose of Promethazine and you are using it regularly, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to you regular dosing schedule. Do not take 2 doses at once.

Ask your health care provider any questions you may have about how to use Promethazine.

Promethazine are a phenothiazine antihistamine. It works by blocking the sites where histamine acts.

Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at the next regularly scheduled time. Do not take extra medicine to make up the missed dose.

Store this medicine at room temperature in a tightly-closed container, away from heat and light.

Do NOT use Promethazine if:

• you are allergic to any ingredient in Promethazine
• you have severe central nervous system depression or are in a coma
• you are also taking astemizole, cisapride, terfenadine, or tramadol

• if you are pregnant, planning to become pregnant, or are breast-feeding
• if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
• if you have allergies to medicines, foods, or other substances
• if you have nervous system problems, bone marrow depression, heart problems, a blood disease, glaucoma, increased eye pressure, low blood pressure, liver problems, prostate problems, Parkinson disease, seizures, or Reye syndrome
• if you regularly consume large amounts of alcohol

• Charcoal or lithium because they may decrease Promethazine's effectiveness
• Angiotensin-converting enzyme (ACE) inhibitors (eg, enalapril), astemizole, cisapride, general anesthetics (eg, thiopental), methyldopa, terfenadine, or tramadol because side effects, such as low blood pressure and seizures, may occur
• ACE inhibitors (eg, enalapril), haloperidol, lithium, meperidine, metrizamide, monoamine oxidase inhibitors (MAOIs) (eg, phenelzine), naltrexone, polypeptide antibiotics (eg, actinomycin), or trazodone because the risk of their side effects may be increased by Promethazine
• Bromocriptine, epinephrine, levodopa, or pergolide because their effectiveness may be decreased by Promethazine