Tolbutamide (Oral Route)

Name: Tolbutamide (Oral Route)

US Brand Name

  1. Tol-Tab

Descriptions

Tolbutamide is used to treat high blood sugar levels caused by a type of diabetes mellitus (sugar diabetes) called type 2 diabetes. In type 2 diabetes, your body does not work properly to store excess sugar and the sugar remains in your bloodstream. Chronic high blood sugar can lead to serious health problems in the future.

Proper diet is the first step in managing type 2 diabetes, but often medicines are needed to help your body. Tolbutamide belongs to a class of drugs called sulfonylureas. It causes your pancreas to release more insulin into the blood stream.

This medicine is available only with your doctor's prescription.

This product is available in the following dosage forms:

  • Tablet

Allergies

Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

Breastfeeding

There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.

Drug Interactions

Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

  • Acarbose
  • Aspirin
  • Balofloxacin
  • Besifloxacin
  • Ceritinib
  • Ciprofloxacin
  • Disopyramide
  • Dulaglutide
  • Enoxacin
  • Entacapone
  • Fleroxacin
  • Flumequine
  • Gatifloxacin
  • Gemifloxacin
  • Lanreotide
  • Levofloxacin
  • Lixisenatide
  • Lomefloxacin
  • Moxifloxacin
  • Nadifloxacin
  • Norfloxacin
  • Octreotide
  • Ofloxacin
  • Pasireotide
  • Pazufloxacin
  • Pefloxacin
  • Prulifloxacin
  • Rufloxacin
  • Sparfloxacin
  • Thioctic Acid
  • Tosufloxacin

Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

  • Acebutolol
  • Atenolol
  • Betaxolol
  • Bisoprolol
  • Bitter Melon
  • Carteolol
  • Carvedilol
  • Celiprolol
  • Chloramphenicol
  • Dicumarol
  • Esmolol
  • Fenugreek
  • Fosphenytoin
  • Furazolidone
  • Ginkgo Biloba
  • Glucomannan
  • Guar Gum
  • Iproniazid
  • Isocarboxazid
  • Ketoconazole
  • Labetalol
  • Levobunolol
  • Linezolid
  • Methylene Blue
  • Metipranolol
  • Metoprolol
  • Moclobemide
  • Nadolol
  • Nebivolol
  • Nialamide
  • Oxprenolol
  • Penbutolol
  • Phenelzine
  • Phenytoin
  • Pindolol
  • Practolol
  • Procarbazine
  • Propranolol
  • Psyllium
  • Rasagiline
  • Rifapentine
  • Safinamide
  • Selegiline
  • Sotalol
  • Sulfaphenazole
  • Timolol
  • Tranylcypromine
  • Trimethoprim
  • Voriconazole

Dosing

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

  • For type 2 diabetes:
    • For oral dosage form (tablets):
      • Adults—At first, 1000 to 2000 milligrams (mg) per day, taken in the morning or in divided doses. Your doctor may adjust your dose if needed. The dose is usually not more than 3000 mg per day.
      • Children—Use and dose must be determined by your doctor.
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