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Loperamide is a custom-made pharmacy drug classified alongside other medications known as antidiarrheal agents. Loperamide slows down the bowel movement process by diminishing the amount of electrolytes or liquids/fluids entering the bowel, which in turn decreases bowel movements. Loperamide is prescribed by physicians for the treatment of various types of diarrhea.


Loperamide may be compounded in several forms for administration depending on your specific needs. Commonly, loperamide comes in capsule, tablet and liquid form, all for oral administration. Your physician may direct you to take loperamide after each bowel movement that is loose, but be sure to not exceed the maximum dosage per day. Take this medication as directed by your physician and follow directions closely.

NOTE: Anyone taking loperamide should be sure to stay well hydrated.


Side effects could occur while taking this drug. Watch for lingering or worsening side effects and contact your doctor right away if any side effect lingers or worsens. Common side effects seen with loperamide are:

  • Stomach Pain or Swelling
  • Stomach Discomfort or Unease
  • Fatigue
  • Constipation
  • Dizziness
  • Drowsy Feeling

Severe Side Effects:

All drugs pose the risk of side effects, some more serious than others. If you feel that you are experiencing anything serious or severe, don't delay; seek emergency medical attention at once. Review the list of severe side effects below and be sure to seek emergency medical attention immediately if you experience anything on the list.

  • Fast Heartbeat
  • Irregular Heartbeat
  • Pounding Heartbeat
  • Fever
  • Rash
  • Hives
  • Itching
  • Wheezing
  • Unresponsiveness
  • Trouble Breathing
  • Bloody Stools
  • Stomach Pain and/or Swelling
  • Fainting


Anyone considering the use of loperamide should not begin use until after they have had a consultation and medical overview with their physician and he or she has deemed loperamide safe for use.

During the consultation with your physician, be sure to inform her or him about any and all current or past medical issues, especially bloody or tarry stools, prolonged QT interval, liver issues or disease, or irregular heartbeat.

WARNING: Never take a higher dosage than your physician prescribes. Taking more than your physician recommends can cause serious or life threatening problems.

Loperamide is contraindicated for breastfeeding.

Loperamide is possibly contraindicated for pregnancy. Talk to your doctor about the risks. Loperamide should only be used during pregnancy if your doctor deems it absolutely necessary.

Loperamide may be contraindicated for any of the following:

  • Paralysis of Intestines
  • Liver Problems
  • Bloody Diarrhea
  • Infectious Diarrhea

Ask your doctor for a complete overview of all possible contraindications.

  • "It is rare to find health professionals who are so willing to educate the patient on what they need to know."

    Clair C. | West Hollywood, CA