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  • Generic Name: (metreleptin)
    Other Brands: N/A
  • Last Revised: 01/2015
    • What is this medication and its most common uses?

      Myalept is a medicine used with a diet recommended by your healthcare provider to treat problems caused by not having enough leptin in your body in people with lipodystrophy (abnormal conditions of the body’s fat tissue). Myalept is injected subcutaneously (just below the skin).

    • What should I know when beginning and continuing on this medication?

      Myalept may only be available under a special restricted distribution program called the Myalept REMS program. Myalept may only be used in patients who are enrolled in and meet all the conditions of this program. Your healthcare provider will explain this program to you. You will likely receive Myalept from a specialty pharmacy.

      How does this medication work?

      Myalept works by binding to and activating certain receptors in your body, thereby stimulating your body to make more leptin.

      What are the beneficial effects of this medication and when should I begin to have results?

      What: By increasing leptin levels, Myalept may help improve certain other symptoms associated with your condition.

      When: Everyone responds differently to treatment, so try to be patient and follow your healthcare provider's directions. It is important that you use Myalept exactly as your healthcare provider has prescribed.

      How do I know it is working?

      Your healthcare provider may order tests or may ask you questions from time to time to assess how well this medication is working.

    • What are the possible side effects of this medication?

      The following is not a full list of side effects. Side effects cannot be anticipated. If any develop or change in intensity, tell your healthcare provider as soon as possible. Only your healthcare provider can determine if it is safe for you to continue taking this medication.

      Using Myalept may reduce how well the leptin in your body works or reduce the effectiveness of treatment with Myalept. Tell your healthcare provider if you develop an infection, problems with blood sugar (including diabetes), or an increase in the amount of triglycerides (fats in your blood).

      Myalept may increase your risk of developing lymphoma (a type of blood cancer).

      More common side effects may include: headache, low blood sugar, decreased weight, abdominal (stomach area) pain.

      Symptoms of low blood sugar may include: shakiness, sweating, headache, drowsiness, weakness, dizziness, confusion, irritability, hunger, fast heart beat, feeling jittery.

      Less common side effects may include:

      Serious allergic reactions with symptoms such as a rash over your body, hives, swelling of your face or throat, shortness of breath or trouble breathing, fast heartbeat, feeling of faintness or fainting.

      Increased risk of developing lymphoma (a type of blood cancer).

      Myalept contains a preservative called benzyl alcohol. Benzyl alcohol may harm premature babies or newborn babies.

    • Who should not take this medication?

      Do not use Myalept if you are allergic to it or any of its ingredients.

      Do not use Myalept if you have general obesity that is not caused by a leptin deficiency.

    • What should I tell my healthcare provider before I take the first dose of this medication?

      Tell your healthcare provider about all prescription, over-the-counter and herbal medications you are taking before beginning treatment with Myalept. Also, talk to your healthcare provider about your complete medical history, especially if you have or have had problems with your blood cells (such as low blood cell counts), problems with your bone marrow, swollen lymph nodes, lymphoma, problems with your immune system or pancreas, have high blood triglyceride levels, if you use insulin or sulfonylurea, or if you are pregnant, plan to become pregnant, or are breastfeeding.

    • What is the usual dosage?

      The information below is based on the dosage guidelines your healthcare provider uses. Depending on your condition and medical history, your healthcare provider may prescribe a different regimen. Do not change the dosage or stop taking your medication without your healthcare provider's approval.

      Adults and children: Your healthcare provider will prescribe the appropriate dose for you or your child, based on the body weight.

    • How should I take this medication?

      Use Myalept exactly as prescribed by your healthcare provider. Do not change your dose or stop using Myalept without first talking to your healthcare provider. Stopping Myalept suddenly may cause serious problems with your pancreas.

      Your healthcare provider will give you instructions on how to prepare and inject Myalept.

      Inject Myalept once a day at the same time each day. Inject Myalept under the skin of your stomach area, thigh, or upper arm.

      If you are giving Myalept to your child, your healthcare provider will give you special instructions for mixing Myalept.

      Please review the instructions that came with your prescription on how to properly inject Myalept.

    • What should I avoid while taking this medication?

      Do not use Myalept until your healthcare provider shows you how to use it correctly.

      Do not inject Myalept in the same site as your insulin dose or mix Myalept and insulin in the same syringe or vial.

      Do not miss any scheduled follow-up appointments with your healthcare provider.

    • What are the possible food and drug interactions associated with this medication?

      No significant interactions have been reported with Myalept at this time. However, always tell your healthcare provider about any medicines you take, including over-the-counter medications, vitamins, and herbal supplements.

    • May I receive this medication if I am pregnant or breastfeeding?

      The effects of Myalept during pregnancy are unknown. Do not breastfeed while you are using Myalept. Tell your healthcare provider immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

      If you become pregnant while using Myalept, talk to your healthcare provider about registering with a program to collect information about the effects of Myalept during pregnancy.

    • What should I do if I miss a dose of this medication?

      If you miss a dose of Myalept, inject it as soon as you remember. Inject your regular dose the next day at your normal time. Do not take more than your regular dose in a single day. Do not take an extra dose or increase the amount of your dose to make up for a missed dose.

    • How should I store this medication?

      Store in the refrigerator. Do not freeze. Protect from light.

    • Who should I contact in case of emergency or overdose?
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      In the event of a medical emergency call your doctor or 9-1-1 immediately. In the event of overdose, call your doctor or poison control for further instructions.
      National Poison Control#: Call 1-800-222-1222

      This PDR+ drug information has been developed by the Physicians’ Desk Reference Network (PDRN), a source of medication information trusted by doctors for over 65 years.

      This monograph summarizes the most important information about your medication and does not cover all the information you may need. If you have any questions or concerns or want to learn more about your medication, ask your healthcare provider; he/she will be able to provide answers to your questions. This medication should only be used by the patient for whom it was prescribed and should not be shared with other people.
    • Additional patient resources.
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