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Phillips’ Milk Of Magnesia Liquid

  • Dual-action magnesium hydroxide antacid & osmotic laxative
  • Helps relieve indigestion, heartburn, excess acid and constipation
  • Traditional mint-flavoured 200ml oral suspension
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Fast & Free Delivery Options

Variety of delivery options including next day & free delivery.

100% UK-based Pharmacy

Pharmacy, clinic and prescribers based in Greater Manchester.

Free Online Consultations

Start your treatment with a quick and free online consultation.

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About Phillips’ Milk Of Magnesia Liquid

Phillips’ Milk Of Magnesia Liquid contains magnesium hydroxide 415 mg per 5 ml, a trusted oral antacid and osmotic laxative used for constipation relief, digestive discomfort, heartburn and acid indigestion. This dual-action liquid suspension works by neutralising excess stomach acid to ease indigestion and drawing water into the intestines to soften stools and promote bowel movements when used as directed.

Phillips’ Milk Of Magnesia Liquid is ideal for adults and children over 3 years old (with dosing instructions varying by age group) and comes in a convenient 200 ml traditional mint-flavoured oral suspension that’s suitable for home use.

Product Name Phillips’ Milk Of Magnesia Liquid
Active Ingredient Magnesium Hydroxide 415 mg per 5 ml
Other Ingredients sodium hydrogen carbonate, oil of peppermint, glycerol, sodium
saccharin and purified water
Product Form Oral liquid suspension
Used to Treat Occasional constipation, heartburn, acid indigestion, excess stomach acid
Available Size 200 ml
Who Can Use It Adults and children aged 3 years and over (paediatric advice required for under 3)
Prescription Required? No – General Sale Medicine (GSL)

What Is Phillips’ Milk Of Magnesia Liquid Used For?

Phillips’ Milk Of Magnesia Liquid is used to relieve occasional constipation and to neutralise excess stomach acid that causes heartburn, indigestion and wind discomfort. It works by drawing water into the bowel to soften stools and by reducing acidity in the stomach.

Who Is Phillips’ Milk Of Magnesia Liquid Suitable For?

This product is suitable for adults and children aged 3 years and over when used as directed. Children under 3 should only use it on medical advice. Do not use if you are allergic to any ingredients. Consult a healthcare professional before use if you have kidney problems, are pregnant or breastfeeding, or take other medicines.

How to Use Phillips’ Milk Of Magnesia Liquid

  1. Shake bottle well before measurement.
  2. Use the dosing cup or spoon provided.
  3. Take with a glass of water or milk if preferred.
  4. For indigestion: up to 60 ml in 24 hrs, divided into 5–10 ml doses as needed.
  5. For constipation: take 30–45 ml at bedtime and reduce once relief is achieved.

Always follow label directions and do not exceed the recommended dose.

Possible Side Effects of Phillips’ Milk Of Magnesia Liquid

Common side effects may include:

  • Diarrhoea
  • Abdominal cramping or discomfort
  • Nausea

Stop use and seek medical advice if you experience severe gastrointestinal symptoms, signs of allergic reaction, or prolonged abdominal pain.

Warnings and Precautions

  • Do not exceed the recommended dose.
  • Consult a doctor before use in kidney disease or during pregnancy/breastfeeding.
  • Keep out of sight and reach of children.
  • If symptoms persist for more than 7 days for constipation or 14 days for indigestion, seek medical advice.

Storage Instructions

  • Store below 25 °C and do not freeze.
  • Keep the bottle tightly closed.
  • Use within manufacturer-recommended time once opened.\

Ingredients

Active ingredient: Magnesium Hydroxide 415 mg per 5 ml. Other ingredients: Sodium Hydrogen Carbonate, Oil of Peppermint, Glycerol, Sodium Saccharin & Purified Water.

 

Phillips’ Milk Of Magnesia Liquid Reviews

Our Experienced UK-based Pharmacy Team

Clinical Consultant
MUDr, MRCEM, EBCEM, FRCEM
GMC no. 7176414

Pharmacist
MPharm
GPhC no. 2065469

Pharmacist
MPharm
GPhC no. 2046514

Page content authored by Amjad Khan, last reviewed by Mr Muhammad on 21st April 2026.

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