When you’re suffering from Bali Belly, heading to a local pharmacy (‘Apotik’) for a quick fix can be tempting. But not all over the counter diarrhea medicine in Bali is created equal, and some can even make things worse. This guide explains the common OTC options, how they work, and when it’s safer to see a doctor.

The Foundation: Rehydration is Your #1 Priority, Not Pills
Before considering any pill to stop your symptoms, it is critical to understand that your top priority is not stopping the diarrhea—it’s treating the dehydration it causes. Therefore, the single most important medicine for Bali Belly you can buy is not a pill, but a sachet of Oral Rehydration Salts (Oralit). This should always be your first line of defense. You can learn exactly why this is your most important tool in our guide to Oralit for Bali Belly.
Anti-Diarrheal Agents (Motility Inhibitors): Use With Extreme Caution
Loperamide (Brand Names: Imodium, Diapet)
Loperamide (sold under brand names like Imodium or the local Diapet) is a powerful anti-diarrheal. It works by slowing down the muscular contractions of your intestines, which effectively stops the symptom of diarrhea. Because it only masks the symptom and does not treat the underlying infection, its use should be reserved for short-term, emergency situations only, such as a long flight or bus journey.
Crucial Safety Warning: Never use Loperamide if you have a high fever or see blood in your stool. Stopping the diarrhea in these cases can trap a dangerous infection inside your body, potentially leading to a more severe illness.
Adsorbents: The “Binding” Agents
Activated Charcoal (Local Brand: Norit)
Activated Charcoal (a common local brand is Norit) is another popular option. It works through a process called adsorption, acting like a sponge to potentially bind to certain substances in the stomach. However, its effectiveness for treating active infectious diarrhea is considered medically limited and it should not be considered a primary treatment.
The Verdict: Proper hydration is always more important than taking activated charcoal for diarrhea. Learn more about the facts in our guide to activated charcoal for Bali Belly.
Symptom Relief: For Cramps, Gas, and Pain

While hydration and letting the illness run its course is key, some OTC medicines can help manage the associated discomforts like cramping and pain.
Antispasmodics & Simethicone
Antispasmodics are medicines designed to relieve the painful muscle cramps in your gut, while Simethicone is effective for breaking up gas bubbles and reducing bloating. While they don’t treat the diarrhea itself, they can make you feel significantly more comfortable.
You can often find products that combine these, but it is always best to explain your specific symptoms to the pharmacist to get the right recommendation.
Pain Relievers (Paracetamol vs. Ibuprofen)
If you have aches or a fever, Paracetamol (Acetaminophen) is the safest choice in Bali. You should avoid Ibuprofen as it can increase bleeding risks if your fever is caused by Dengue, which can have similar initial symptoms.
While OTC medicines can offer temporary relief, they are not a cure. The best approach is always to focus on hydration and let your body fight the infection, seeking medical help when necessary, which may include prescription medication like the antibiotics used for Bali Belly.
For a complete overview of the illness, read our Ultimate Guide to Bali Belly.
Don’t Just Mask Your Symptoms. Get the Right Treatment.
Self-medicating can be confusing and risky. Our doctors can provide an accurate diagnosis and the correct prescription medication to ensure you recover safely and quickly.
Frequently Asked Questions (FAQ) about OTC Medicine in Bali
Can I buy antibiotics over the counter in Bali?
While regulations can sometimes be lax in some smaller pharmacies, you should never take antibiotics without a doctor’s diagnosis. Most cases of Bali Belly are viral and won’t respond to antibiotics, and taking them unnecessarily can cause harm.
What is ‘Diapet’ and is it the same as Imodium?
Yes, Diapet is a common local brand name for medicine containing Loperamide, the same active ingredient as Imodium. It should be used with the same precautions.
The pharmacist offered me a medicine I don’t recognize. What should I do?
Always ask for the “active ingredient” (bahan aktif). If you are still unsure, it is safer not to take it and to consult a doctor instead.
Why is Ibuprofen dangerous if I might have Dengue?
Dengue Fever can cause a drop in platelet count, which affects blood clotting. Ibuprofen is a blood thinner and can increase the risk of bleeding complications in someone with Dengue.
Is it okay to take Loperamide and Activated Charcoal at the same time?
It is not recommended. Activated charcoal can bind to other medications, including Loperamide, making them less effective.
Are the medicines sold in Bali pharmacies genuine?
Yes, at reputable pharmacies like Guardian, Kimia Farma, and other official “Apotik”, the medicines are sourced from legitimate distributors and are genuine.
What’s the best OTC medicine for the nausea symptom?
Over-the-counter options for nausea are limited. Natural remedies like ginger tea are often more effective. For persistent nausea or vomiting, a doctor can prescribe a powerful anti-nausea medication (antiemetic).
I took Imodium and the diarrhea stopped, but I still feel very sick. Why?
Because Imodium only stops a symptom (the bowel movement); it does not cure the underlying infection. The bacteria or virus is still in your system, and your body is still fighting it, which is why you feel unwell.
Are there any ‘stronger’ medicines I can ask for at the pharmacy?
Any “stronger” medication for diarrhea, such as antibiotics or powerful antispasmodics, requires a doctor’s diagnosis and prescription.
If I have multiple symptoms (diarrhea, cramps, nausea), what should I take?
Having multiple, severe symptoms is a clear sign that you should not be self-medicating. This is the time to see a doctor to get a comprehensive treatment plan that addresses all your symptoms safely.