Medicines & Supplements A to Z > Gastrogel

Gastrogel

Last updated on 25/07/2021.

Overview   |   Dosage   |    Side Effects   |   Precautions  |   Tips  |   Where To Buy  

GENERIC NAME: Aluminium hydroxide + Magnesium hydroxide + Simethicone (tablet, suspension), Aluminium hydroxide + Magnesium hydroxide + Magnesium trisilicate (solution)

CHINESE NAME: 胃凝膠

BRAND NAME(S) IN HONG KONG: Mylanta

DRUG CLASS: Gastrointestinal Drugs

SUB CLASS: Antacids

USED FOR: Gastroesophageal Reflux Disease (GERD)

AVAILABLE DOSAGE FORMS:
– 200mg / 200mg / 20mg (tablet)
– 200mg/5ml / 200mg/5ml / 20mg/5ml (suspension)
– 50mg/ml / 24mg/ml / 24mg/ml (solution)

What is Gastrogel for?

Gastrogel is a combination therapy of dried Aluminium hydroxide gel, Magnesium hydroxide, Magnesium trisilicate or Simethicone. Aluminium hydroxide and Magnesium hydroxide and Magnesium trisilicate reduce the acidity of gastric content and relieves heartburn. Simethicone can remove the gas in the GI tract to prevent bloating.

How to use it?

Gastrogel is available in tablet, suspension and solution form for oral use. It can be taken with or without food. The tablets should be sucked or chewed.

GERD-associated heartburn
Child above 12 years of age, adult and elderly
Gastrogel antacid solution: 10 mL 3-4 times daily or when needed.
Gastrogel suspension: 10-20 mL 4 times daily.
Gastrogel tablet: 1-2 tablets 3-4 times daily or when needed.

Child at 6-12 years of age
Gastrogel antacid solution: 5 mL 3-4 times daily or when needed.
Gastrogel suspension: 10-20 mL 4 times daily.
Gastrogel tablet: 1-2 tablets 3-4 times daily or when needed.

Child at 3-6 years of age
Gastrogel antacid solution: 2.5 mL 3-4 times daily or when needed.
Gastrogel suspension: 10-20 mL 4 times daily.
Gastrogel tablet: 1-2 tablets 3-4 times daily or when needed.

What are the side effects of Gastrogel?

Common side effects of Gastrogel include constipation, diarrhea and electrolyte imbalance.

Who should not take Gastrogel?

– Patients with declined kidney function.
– Patients allergic to Gastrogel or any component of the formulation.

Pharmacist Tips:

– Gastrogel is only a symptomatic relief medication for heartburn. If symptoms recur or exacerbate, seek medical attention.
– If pain radiates to the back, left upper arm or neck, please seek  medical attention immediately.
– Although this medication is not contra-indicated for pregnant women, it is advised to avoid administration of self-purchased drugs.
– The tablets should be sucked or chewed.

Common dosing schedule:
4 times a day before sleep and after the 3 meals or when needed.

This schedule is for reference only, adjustments may be made according to individual needs.

Some common medications Gastrogel may interact with:
– Citrate-containing medications, e.g. Effervescent tablets, Potassium citrate, Magnesium citrate

Please notify your doctor or pharmacist if you are taking the above medication, dosage adjustments might be needed.

Where to buy Gastrogel in Hong Kong?

In Hong Kong, Gastrogel is an over-the-counter medicine and can be purchased without a prescription from any retail outlet in Hong Kong. This includes grocery stores, convenience stores, medicine shops, and pharmacies. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health.

For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at https://www.drugoffice.gov.hk

Need more information?

For detailed information about the use of Gastrogel in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.

Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.