meperidine/promethazine - oral, Mepergan Fortis, Meprozine (cont.)
HOW TO USE: Take this medication by mouth, usually every 4 to 6 hours as needed or as directed by your doctor. You may take this drug with or without food. If you have nausea, you may take this drug with food, although this may cause your body to absorb less of the drug and get less benefit from it. Consult your doctor or pharmacist about other ways to decrease nausea (e.g., lying down for 1-2 hours with as little head movement as possible).The dosage is based on your medical condition and response to therapy. Pain medications work best if they are used as the first signs of pain occur. If you wait until the pain has worsened, the medication may not work as well.You may also take long-acting narcotic medications or use narcotic patches for ongoing pain if so directed by your doctor. In that case, this medication might be used for sudden (breakthrough) pain only as needed. Also follow your doctor's or pharmacist's instructions for safely using non-narcotic pain relievers (e.g., naproxen, ibuprofen). Ask your doctor if you have any questions.This medication may cause withdrawal reactions, especially if it has been used regularly for a long time or in high doses. In such cases, withdrawal symptoms (such as restlessness, runny nose, watering eyes, trouble sleeping, severe abdominal/muscle pain, nausea, vomiting, rapid breathing, and fast heartbeat) may occur if you suddenly stop using this medication. To prevent withdrawal reactions, your doctor may reduce your dose gradually. Consult your doctor or pharmacist for more details, and report any withdrawal reactions immediately.Though very unlikely, this medication can also be habit-forming and may result in abnormal drug-seeking behavior (addiction). To lessen the risk of becoming addicted, do not increase your dose, take it more frequently, or use it for a longer time than prescribed. Properly stop the medication when so directed.When used for an extended period, this medication may not work as well and may require different dosing. Talk with your doctor if this medication stops working well.Inform your doctor if your pain persists or worsens.
SIDE EFFECTS: Nausea, vomiting, blurred vision, constipation, dry mouth, flushing, sweating, lightheadedness, dizziness, and drowsiness may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.Some people, particularly children, may experience excitability rather than drowsiness.To prevent constipation, maintain a diet adequate in fiber, drink plenty of water, and exercise. If you become constipated while using this drug, consult your pharmacist for help in selecting a laxative (e.g., stimulant-type with stool softener).Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.Tell your doctor immediately if any of these unlikely but serious side effects occur: slow/shallow breathing, fainting, slow/irregular/fast heartbeat, involuntary muscle movements/stiffness, mental/mood changes (e.g., confusion, hallucinations, nervousness), numbness, restlessness, shakiness (tremors), trouble urinating.Tell your doctor immediately if any of these rare but very serious side effects occur: severe stomach/abdominal pain, very high fever, persistent nausea/vomiting, seizures, increased sweating, change in the amount of urine, dark urine, yellowing eyes/skin.A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any of the following symptoms of a serious allergic reaction: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.In the US -Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Back to Medications Index
Get the latest health and medical information delivered direct to your inbox FREE!