Medicine Dosage Calculator App

CE Marked App for Rosemont Pharmaceuticals

Rosemont Pharmaceuticals

Rosemont Pharmaceuticals is dedicated to improving the health and wellbeing of people through the development, manufacture and supply of liquid medicines.

To complement a range of digital activity, our research demonstrated that there was an opportunity that went beyond the web to develop a mobile app that acted as both a product reference guide and a dosage calculator for their medicines. The idea being that the app would help them to improve engagement with hard to reach GPs whilst producing a clinical tool with added value to make the app really useful.



Project Scoping

To establish the exact nature of the brief we worked with them on a scoping phase to document a precise project scope including the exact technical and functional requirements, the design criteria and any other considerations for their project.

User Experience Design

The target audience was HCPs and as such some of the content was not suitable for the general public. Because it was important to understand exactly how the app would work to remain compliant, we mapped the process by which HCPs would use the app. This helped to ensure that all eventualities were considered during the planning phase and that nothing was missed.

Rosemont map


We then produced a set of wires frame demonstrating key features like navigation and showing where functionality like buttons, warning and other tools were required. The wire frames were the blueprint for key pages on the app.

Rosemont wireframe

Creative & User Interface Design

Following agreement of the wire frames we produced a mock-up of the user interface design. Where the wire frame is your blueprint showing the structure of each page, the user interface design allows you to see how the finished pages will look.

Rosemont Pharma Dosage Calculator App

Tracking Code

To ensure we could understand how HCPs are using the app, the Google Analytics SDKs for iPhone and Andriod were included to measure the number of visitors, particular pages, origin of visits, calculations and many more metrics, tracked anonymously. This integrates seamlessly with the Google Analytics account.

Medical & Pharma Compliance

CE MarkAs the app includes a dosage calculator designed to support HCPs in their clinical decision making process and based on perceived risk factors indicated by the European Medical Device Directive (MDR), the app needed to be CE marked and registered as a Class I device with the MHRA. This included an extending period of split blind testing and risk assessments to demonstrate that the app was better than traditional methods for calculating liquid dosages. The app also meets all the ABPI regulatory guidelines for digital assets.

The first Pharmaceutical MHRA certified Class I Device app

The Results

Based on research into the mobile sector and how HCPs are using apps to retrieve information they are otherwise unable to access and the types of devices they are using to access that information, we developed what is the first Pharmaceutical MHRA certified Class I Device app for Rosemont Pharmaceuticals. The app is available on the iTunes app store and the Google Play Store.

The release of the app has been supported by separate micro site which we also developed.