Dosage Instructions for Mepergan Fortis

Mepergan fortis is prescribed under several brand names to treat moderate to severe pain. Because narcotics often cause nausea as a side effect, it combines anti-nausea medications with some narcotics to help lessen adverse affects. Mepergan fortis is an oral medication made up of two medicines called meperidine and promethazine. According to Everyday Health, meperidine acts as a narcotic pain reliever and promethazine serves an anti-nausea medication. Mepergan fortis constitutes strong medication with possible reactions and drug interactions, so you need to consider dosage instructions when taking mepergan fortis.

Instructions

• 1

  Schedule an appointment with your physician to discuss the benefits and risks of taking mepergan fortis. Your doctor will prescribe mepergan fortis if he feels it is the best choice to treat your specific condition.

• 2

  Give your doctor a complete medical family history before considering mepergan fortis for your condition. According to Drugs.com, the dosage for mepergan fortis may require adjustment or reduction in patients with heart disease, kidney failure, liver disease, asthma, sulfite allergies, seizures, glaucoma and Addison's disease. The narcotic component of mepergan fortis can be addictive, so tell your physician if you have a history of drug addiction.

• 3

  Update your current list of medications with your physician. Serious life-threatening effects can occur if you take mepergan fortis with certain anti-depressant MAO inhibitor medicines, so tell your doctor about any conditions for which another physician or psychiatrist is treating you. Inform your physician of any herbal products, supplements or over-the-counter medicines you are taking, because mepergan fortis can also interact with these products.

• 4

  Pharmacists go through additional training to learn about medication effects.

  Discuss mepergan fortis with your pharmacist for additional information about dosage instructions and proper ways to take the medication. Pharmacists specialize in the knowledge of drug side effects, adverse reactions and drug interactions, so discuss your list of current medications with the pharmacist. Confirm the directions on your prescription with the pharmacist to rule out any errors or unclear dosage instructions before beginning mepergan fortis therapy.

• 5

  Verify that the information on your prescription container accurately matches the physician's instructions, then take mepergan fortis exactly as prescribed by your doctor. According to PrescriptionDrugs.com, never take mepergan fortis in larger amounts, or use it longer than recommended by your physician.

• 6

  Seek emergency treatment for life-threatening allergic reactions.

  Monitor for side effects and adverse reactions of mepergan fortis including weakness, uneven heartbeat, fainting, tremors, blurred vision, constipation and urinating less than usual. Call your doctor immediately if adverse reactions or side effects interfere with daily activities; he may need to reduce your dosage of mepergan fortis or discontinue it completely. As always, seek immediate medical attention for serious allergic reactions such as difficulty breathing, hives, or swelling of the lips, eyes and mouth.