What is a medicine or drug class?

A medicine class is a group of medicines considered together because they share a therapeutic use, a clinical purpose, or a similar way of acting in the body. It is a way of organising a large catalogue so it is easier to browse.

Can two medicines from the same class be used interchangeably?

Not necessarily. Medicines in the same class can differ in composition, strength and suitability. Only your doctor or pharmacist can decide whether one medicine may be used in place of another.

How can I find a medicine class?

Use the search field at the top of this page, or pick a letter in the A–Z filter and open the class from the alphabetical list.

Do all medicines in a class have the same composition?

No. A class may contain several different active ingredients, and the same ingredient may be available in different strengths and dosage forms.

Do I need a prescription to purchase these medicines?

Many medicines listed under these classes are prescription-only. Where a prescription is required, you will be asked to upload a valid prescription before the order is confirmed.

Can I change my medicine without consulting a doctor?

No. Do not start, stop, substitute or change the dose of a prescribed medicine without advice from a qualified healthcare professional.

Medicines by Class

Browse medicines by their therapeutic or drug class. Select a class to explore related medicines, their uses and important information.

Popular medicine classes

Diabetes careAnti-diabetic Medicines128 medicines Heart healthBlood Pressure Medicines123 medicines Pain carePain Relief Medicines60 medicines Infection careAntibiotics72 medicines Heart healthCardiac Medicines35 medicines Heart healthCholesterol Medicines68 medicines Digestive careGastrointestinal Medicines103 medicines Respiratory careRespiratory Medicines27 medicines Skin careDermatology Medicines45 medicines NutritionVitamins and Supplements62 medicines

Browse all medicine classes

There are 31 classes and every class links to its full medicine list.

Allergy careAnti-allergic Medicines41 medicines Diabetes careAnti-diabetic Medicines128 medicines Infection careAntibiotics72 medicines Infection careAntifungal Medicines15 medicines Infection careAntiviral Medicines8 medicines

Heart healthBlood Pressure Medicines123 medicines Blood healthBlood Thinners23 medicines Bone healthBone and Joint Medicines29 medicines

Cancer careCancer Medicines219 medicines Heart healthCardiac Medicines35 medicines Heart healthCholesterol Medicines68 medicines Respiratory careCough and Cold Medicines39 medicines

Skin careDermatology Medicines45 medicines Kidney careDiuretics11 medicines

Digestive careGastrointestinal Medicines103 medicines Bone healthGout Medicines14 medicines

Blood healthIron and Anaemia Medicines11 medicines

Liver careLiver Care Medicines9 medicines

Men's healthMen's Health Medicines22 medicines Neurology careMigraine Medicines9 medicines Pain careMuscle Relaxants11 medicines

Neurology careNerve Pain Medicines37 medicines Neurology careNeurological Medicines56 medicines

Pain carePain Relief Medicines60 medicines Men's healthProstate Care Medicines12 medicines

Respiratory careRespiratory Medicines27 medicines

Hormone careSteroids18 medicines

Immunity careVaccines18 medicines NutritionVitamins and Supplements62 medicines

NutritionWeight Management Medicines23 medicines Women's healthWomen's Health Medicines26 medicines

Important Medicine Safety Information

Safety information

Do not self-medicate. Use medicines only as advised by a qualified doctor.
Check the strength and dosage form on your prescription before ordering.
Tell your doctor about allergies and about every other medicine or supplement you take.
Do not stop a prescribed medicine without medical advice, even if you feel better.

How to Browse Medicines by Class

1
Find the class
Search by name, or jump to a letter in the A–Z filter.
2
Open the class page
See the medicines listed under it, with pack size, composition and price.
3
Check the details
Read the information provided and confirm with your doctor before ordering.

Why Medicines in the Same Class Can Be Different

Two medicines can sit in the same class and still not be alternatives to each other. They may differ in composition, strength, dosage form, suitability and prescription requirement.

Composition: Different active ingredients
Strength: Different mg per dose
Dosage form: Tablet, syrup, injection, cream
Suitability: Age, pregnancy, other conditions
Prescription requirement: Some are available only against a valid prescription