Imodium

Overview

What is Imodium?   

Imodium, known generically as loperamide, is a medication primarily used to reduce the frequency of diarrhea. It works by slowing down the movement of the gut, which allows for greater absorption of water and electrolytes, making stools less frequent and more solid. 

Loperamide, the active ingredient in Imodium, is a synthetic opioid receptor agonist that affects the smooth muscles in the intestines to inhibit peristalsis (segmental gut propulsive movement) and prolong transit time through the gut. 

Global Name

• Generic name: Loperamide
• Brand names: Imodium, Diamode, Loperacap, among others 

Usage

What is Imodium used for? 

Imodium is used to treat: 

• Acute and chronic diarrhea 

• Traveler’s diarrhea 

• Irritable bowel syndrome (IBS) associated diarrhea 

• Short bowel syndrome 

How do you use Imodium? 

Availability: 

Imodium is available in capsule, tablet, and liquid forms. 

Dosage information: 

• Adults: Start with 4 mg, then 2 mg after each loose stool. Do not exceed 16 mg per day. 

• Children (2 years and older): Dose varies by weight; it's crucial to follow pediatrician's instructions. 

• Elderlies: Use with caution, following the standard adult dosage. 

Are the following suitable to take Imodium: Children, adults, elderlies? 

• Children: Suitable for children over 2 years under pediatric guidance. 

• Adults: Yes, suitable for adults. 

• Elderlies: Suitable, but use with caution due to potential for increased sensitivity to drug effects and drug-drug interactions. 

Is there anyone who can’t take Imodium? 

• Children: Not recommended for children under 2 years. 

• Adults: Individuals with a history of hypersensitivity to loperamide should avoid use. 

• Elderlies: No specific contraindications, but caution is advised. 

• Pregnancy: Should be used only if clearly needed and directed by a doctor. 

• Lactation: Caution is advised; consult healthcare provider. 

Allergies: Those allergic to loperamide or any components of Imodium should not use this medication. 

Warnings and precautions: Do not use in cases of dysentery, which includes blood in stools and high fevers, or bacterial enterocolitis caused by invasive organisms. 

Interactions and contraindications of the drug: 

• Interacts with: Certain antifungal agents, antibiotics, and antiretrovirals. 

• Conditions: Should not be used in patients with acute ulcerative colitis or bacterial enterocolitis. 

Side Effects

Common side effects include: 

• Constipation 
• Dizziness 
• Nausea 

Pharmacist Tips

• Storage information: Store at room temperature, away from moisture and heat. 

• Handling instructions: Follow the exact dosage and instructions provided on the package or by your healthcare provider. 

Availability

Where is Imodium available in Hong Kong?

Imodium is an over-the-counter (OTC) medication that can be sold without a prescription. It is found in all chain drug stores, including Mannings and Watsons. 

FAQs

How quickly does Imodium work? 

Imodium typically begins to reduce diarrheal symptoms within 1 to 2 hours after taking the first dose. 

Can Imodium be taken on an empty stomach? 

Yes, Imodium can be taken with or without food. 

Is it safe to take Imodium every day? 

Imodium should not be used for prolonged periods without medical advice. Consult a healthcare provider for ongoing symptoms. 

Can I take Imodium if I am pregnant? 

Consult your doctor before using Imodium during pregnancy.