Medication info
Riastop Capsule

Riastop Capsule

OTC medicationHard capsule경구
Ingredient · strength
Bismuth Subnitrate›200mg / 1 capsuleScopolia Extract Powder 10%›100mg / 1 capsuleUrsodeoxycholic Acid›4mg / 1 capsuleBerberine Tannate›100mg / 1 capsule
Manufacturer / importer
경방신약(주)
Appearance
A pale yellow-brown powder filled in a capsule with ivory-colored upper and lower parts.
Packaging
10 capsules (10 capsules/PTP × 1ea)
Approval status
Active

MFDS item code 201905873 · Notified 2019.08.20

Summary

Main use
Relief of diarrhea and abdominal pain
Who takes it
Adults
Adult dose
For individuals aged 15 years and older, take 1 capsule 3 times a day with a dosing interval of at least 4 hours.

Ingredients

Manufacturer
경방신약(주)

Efficacy & effects

Relief of diarrhea and abdominal pain

  • Diarrhea
  • abdominal pain
  • bloating
  • loose stools
  • vomiting
View approved original text

This medication is used for digestive-related symptoms such as diarrhea accompanied by abdominal pain, bloating, loose stools, and vomiting.

How to take

Adult dose

For individuals aged 15 years and older, take 1 capsule 3 times a day with a dosing interval of at least 4 hours.

Precautions

This medication should not be taken by pregnant women or women who may become pregnant, nursing mothers, and newborns. Children under 7 years old should also not take this medication. This medication contains lactose, so patients with a genetic disorder that prevents lactose digestion should not take it. It's advised not to take gastrointestinal analgesics or antispasmodics while using this medication. People with a history of allergic reactions to medications should consult with a doctor or pharmacist before taking this medication. Patients with diarrhea accompanied by fever, bloody stools, or mucus in stools or those with gastric or duodenal ulcers should consult a specialist before taking this medication. Individuals currently taking other medications should also consult before starting this medication. If allergic symptoms or dry mouth occur during use, discontinue immediately and consult a specialist. If symptoms do not improve after multiple doses, discontinue and consult a doctor. It is essential to adhere to the prescribed dosage and administration; if experiencing acute severe diarrhea or abdominal pain, do not forcefully stop diarrhea and consult a specialist instead. Avoid drinking alcohol during use and it is safe not to continue for more than three days. This medication should be kept out of the reach of children and stored in a cool, dry place protected from direct sunlight in a tightly sealed container. Also, to maintain quality and prevent misuse, it is advisable not to transfer it to another container.

Side effects and when to seek care immediately

Mild side effects

  • Allergic reactions (rash, itching, etc.)
  • dry mouth
  • diarrhea
  • nausea
  • abdominal pain
  • abdominal distension

Not everyone experiences these, and they can vary from person to person.

Interactions

Drug interactions

Do not take this medication with gastrointestinal analgesics or antispasmodics.

Food interactions

Do not consume alcohol while taking this medication.

Storage

This medication may be sensitive to air or moisture, so it should be stored in a tightly sealed container. The storage temperature should be kept between 1 degree and 30 degrees Celsius at room temperature. This will help maintain the medication's effectiveness over time.

Appearance and packaging

Appearance

A pale yellow-brown powder filled in a capsule with ivory-colored upper and lower parts.

Package unit

10 capsules (10 capsules/PTP × 1ea)

Same-ingredient medicines

Even with the same ingredient, strength, dosage form and how it is taken can differ.

Even with the same ingredient, the dose and directions can differ by strength and dosage form. Talk to a doctor or pharmacist before switching from a medication you are already taking.

Questions about this medicine

  • QMy mouth is dry; could this be due to the medication?

    It is stated that dry mouth may occur rarely, and in this case, you should immediately stop using and consult a physician or pharmacist. Additionally, do not consume alcohol while taking this medication.

    Answers 1 · 2026.09.14

  • QCan I take it together with my medication for gastric cramps?

    You are advised not to take it together with gastrointestinal analgesics or antispasmodics. If you have already taken medication, please check the ingredients with a pharmacist.

    Answers 1 · 2026.09.14

  • QCan I take it when I have stomach pain and diarrhea?

    The approved indications include diarrhea, abdominal pain accompanied by diarrhea, dyspepsia, loose stools, and vomiting. Individuals aged 15 and older should take 1 capsule 3 times daily, with intervals of at least 4 hours.

    Answers 1 · 2026.09.14

For anything that needs medical judgment, consult a doctor or pharmacist.

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This drug information is based on data provided by the Korea Ministry of Food and Drug Safety.
Consult a doctor or pharmacist for accurate dosage, administration, and usage instructions.