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

      Myambutol is a medicine used in combination with other medicines to treat pulmonary tuberculosis (a bacterial infection that affects the lungs).

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

      How does this medication work?

      Myambutol works by eliminating the bacteria that causes tuberculosis.

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

      What: Myambutol may improve symptoms associated with tuberculosis and may help eliminate the bacteria causing the infection.

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

      How do I know it is working?

      Your healthcare provider may order certain tests regularly to check 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.

      Side effects may include:

      Eye problems, such as decrease in visual sharpness or blindness.

      Myambutol may also cause liver problems, itching, joint pain, loss of appetite, nausea, vomiting, abdominal (stomach area) pain, fever, headache, dizziness, or numbness and tingling of the extremities.

    • Who should not take this medication?

      Do not take Myambutol if you are allergic to it or any of its ingredients.

      Do not take Myambutol if you have optic neuritis (inflammation of the optic nerve that causes blurring, graying, or loss of vision), unless otherwise instructed by your healthcare provider.

    • 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 Myambutol. Also, talk to your healthcare provider about your complete medical history, especially if you have kidney, liver, or eye problems; 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 ≥13 years: Your healthcare provider will prescribe the appropriate dose for you or your child based on the weight. Your healthcare provider may adjust the dose as needed, until the desired effect is achieved.

    • How should I take this medication?

      Take Myambutol exactly as prescribed by your healthcare provider. Do not change your dose or stop taking Myambutol without first talking to your healthcare provider.

    • What should I avoid while taking this medication?

      Do not take Myambutol with aluminum hydroxide-containing antacids for at least 4 hours after taking Myambutol.

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

      If Myambutol is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your healthcare provider before combining Myambutol with aluminum-containing antacids.

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

      The effects of Myambutol during pregnancy are unknown. Myambutol can be found in your breast milk if you take it while breastfeeding. Tell your healthcare provider immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

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

      If you miss a dose of Myambutol, take it as soon as you remember. However, if it is almost time for your next dose, skip the one you missed and return to your regular dosing schedule. Do not take two doses at once.

    • How should I store this medication?

      Store at room temperature.

    • 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.
      back to top Use your PDR® Pharmacy Discount Card when you or a family member fills a prescription and ask for your PDR® Discount every
      time!
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    This discount plan is NOT insurance or a Medicare prescription drug plan. The plan is not intended as a substitute for insurance and does not meet creditable coverage requirements under state or federal law. The plan provides discounts at participating pharmacies on certain pharmaceutical supplies, prescription drugs, or medical equipment and supplies. The range of discounts will vary depending on the products received. Members are obligated to pay the pharmacy the entire amount of the discounted rate for such products at the point of sale. The plan does not pay pharmacies for products provided to members. No enrollment or periodic fees apply. The pharmacy may pay the plan a fee from amounts the pharmacy collects from the member. The discount plan organization is ProCare Pharmacy Benefit Manager, Inc.,1267 Professional Parkway, ProCare Office Park, Gainesville, GA 30507, 1-888-299-5383. Customer service is provided by PDR, LLC., 5 Paragon Drive, Montvale, NJ, 07645, 1-800-232-7379, www.pdr.net/DiscountCard, customerservice@pdr.net.