Why your GP prescribes medicines by their drug (generic) name

When you receive a prescription from our practice, you may notice that your medicine is prescribed using its generic (chemical) name rather than a brand name.

Many patients wonder why this is, especially if they have previously received a medicine with a familiar brand name or if the packaging looks different.

We hope this page explains why we prescribe this way and reassures you that your medicine has been chosen because it is safe, effective and represents good value for the NHS.

A medicine contains an active ingredient (the chemical that treats your condition).

For example:

A branded medicine is developed and marketed by a pharmaceutical company, usually while it is protected by a patent.

Once that patent expires, other manufacturers can produce the same medicine. These are known as generic medicines.

Although the packaging, tablet shape, colour or manufacturer may differ, the medicine contains the same active ingredient in the same strength and must meet the same strict quality, safety and manufacturing standards.

Yes.

Before a generic medicine can be licensed for use in the UK, it must demonstrate that it is equivalent to the branded medicine.

This means it must:

• Contain the same active ingredient.
• Be available in the same strength.
• Work in the body in the same way.
• Meet the same high standards for quality, safety and effectiveness.

The Medicines and Healthcare products Regulatory Agency (MHRA) carefully regulates all licensed medicines supplied in the UK.

Prescribing by the generic (chemical) name is standard NHS practice because it:

• allows any suitable licensed manufacturer to supply the medicine
• helps pharmacists dispense medicines more efficiently
• reduces prescribing costs
• ensures continuity of treatment if one manufacturer has supply problems
• supports national NHS prescribing guidance.

It also gives pharmacies flexibility to supply whichever approved version is currently available.

From time to time you may notice that:

• the box looks different
• the tablets are a different shape or colour
• the manufacturer's name has changed.

This does not necessarily mean your medicine has changed.

Often, it is exactly the same medicine made by a different manufacturer.

The active ingredient and dose remain the same.

Most patients notice no difference when changing between manufacturers.

However, we recognise that some patients feel their medicine seems different after changing to another manufacturer.

There can be several reasons for this, including:

• changes in tablet appearance or packaging
• changes in routine or expectations
• progression of the underlying condition.
• differences in inactive ingredients (such as colouring or fillers), which rarely affect how the medicine works but may affect tolerability for some people

If you feel your medicine is not working as expected, please do not stop taking it without seeking advice.

Instead:

• continue taking your medicine unless advised otherwise
• contact the practice if your symptoms have genuinely changed or you have concerns about your treatment.  You can do this by submitting a Klinik form with your concerns or symptoms.

We will always take your concerns seriously and review your medication if needed.

Yes.

Although generic prescribing is appropriate for most medicines, there are some medicines where a specific brand is recommended because small differences between manufacturers can affect how the medicine works or because patients require a consistent product.

Where national guidance recommends prescribing a particular brand, your GP will prescribe that brand.

Our practice follows NHS prescribing guidance by prescribing medicines using their generic (chemical) name whenever it is clinically appropriate.

This approach:

• provides safe and effective treatment
• supports consistent prescribing
• helps reduce unnecessary NHS costs
• improves medicine availability during shortages
• ensures NHS resources can be used where they benefit patients most.

If you have any concerns about your medication or notice unexpected changes after receiving a different manufacturer's product, please speak to your pharmacist or contact the practice. We are always happy to discuss your treatment and ensure you receive the medication that is most appropriate for your individual needs.