Medication info
Thegain Tablet

Thegain Tablet

OTC medicationTablet경구
Ingredient · strength
D-Biotin›0.3mg / 1 tabletZinc Oxide›18.67mg / 1 tablet
Manufacturer / importer
(주)바이넥스
Appearance
White round film-coated tablet
Packaging
500 tablets/bottle
Approval status
Active

MFDS item code 201901973 · Notified 2019.04.01

Summary

Main use
Prevention of zinc deficiency
Who takes it
Adults · Children
Adult dose
Take 1 tablet once daily.
Child dose
For adolescents aged 12 years and older, take 1 tablet once daily.

Ingredients

Manufacturer
(주)바이넥스

Efficacy & effects

Prevention of zinc deficiency

View approved original text

Zinc is a mineral that supports the immune function of the body and aids in wound healing. Insufficient zinc can lead to weakened immunity and poor skin health, making supplementation important. Therefore, zinc supplementation is used to enhance immunity and improve skin health.

How to take

Adult dose

Take 1 tablet once daily.

Child dose

For adolescents aged 12 years and older, take 1 tablet once daily.

Precautions

This medication should not be taken by individuals who have allergic reactions to this medication or its ingredients. Infants under 12 months of age should not take this medication. Patients with severe renal impairment should also avoid this medication. While taking this medication, do not take phosphates, calcium salts, oral tetracycline antibiotics, and antacids together. Patients undergoing treatment or those with heart or circulatory problems, kidney disorders, low protein levels in the blood, and pregnant women should consult a doctor or pharmacist before taking this medication. If symptoms such as red spots, diarrhea, irregular heartbeat, central nervous system depression, gastrointestinal disorders, upper abdominal pain, nausea, hypotension, pulmonary edema, or vomiting occur while taking this medication, discontinue use immediately and consult an expert. Taking large doses of this medication may lead to side effects such as nausea, vomiting, hypernatremia, heart failure, and edema, so caution is required. Be cautious when taking this medication with aldosterone antagonists or triamterene, as it may increase serum potassium levels. If an accidental overdose occurs, contact an expert immediately. If symptoms do not improve after about one month of use, discontinue use and consult a doctor. It is essential to adhere to the prescribed dosages and administration guidelines. It is advisable to avoid consuming teas high in tannins, such as green tea and black tea, before and after taking this medication. This medication should be stored out of reach of children, in a tightly sealed container away from direct sunlight and in a cool, dry place. Moreover, to prevent misuse and maintain quality, it is important not to transfer it to another container.

Side effects and when to seek care immediately

Mild side effects

  • Diarrhea
  • diminished contraction (cardiac arrest)
  • central nervous system dysfunction
  • gastrointestinal disturbances
  • digestive disorders
  • upper abdominal pain
  • nausea
  • hypotension
  • pulmonary edema
  • vomiting
Show 4 more
  • hypernatremia
  • congestive heart failure
  • edema
  • hyperkalemia

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

Interactions

Drug interactions

This medication should not be taken with phosphates, calcium salts, oral tetracycline antibiotics, and antacids. Additionally, consult a doctor or pharmacist if taking with aldosterone antagonists or triamterene.

Food interactions

Avoid taking this medication with tannin-containing teas such as green tea and black tea or just before and after taking this medication.

Storage

This medication should be stored in a tightly closed container to prevent exposure to air or moisture, at room temperature between 1 degree and 30 degrees Celsius. This maintains the effectiveness of the medication and ensures its safe use.

Appearance and packaging

Appearance

White round film-coated tablet

Package unit

500 tablets/bottle

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

  • QI am planning to take zinc supplements; how many tablets should I take?

    For individuals aged 12 and older, the dosage is 1 tablet once a day. Do not take it with calcium salts, phosphates, antacids, or oral tetracycline preparations.

    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.