Prescription Products

Our core business is the discovery and development of prescription medicines for diseases and conditions that impact millions of people.

Today, MSD has a range of prescription products in key therapeutic areas, such as cardiovascular disease, diabetes, oncology, infectious disease, vaccines, and women's health.

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Counterfeit medicines are a serious issue facing patients, health professionals and the pharmaceutical industry.

Counterfeit medicines are made by someone other than the original manufacturer and whilst some counterfeit medicines may have the correct active ingredient, some are dangerous as they may:

Be contaminated

Contain no active ingredient

Have been made in extremely unsanitary conditions

Include too much or too little of the active ingredient

Undermine the patients' confidence in taking medicines

Contain harmful or poisonous ingredients

MSD takes the safety of patients extremely seriously and is working with governments and customs authorities around the world to help control the problems caused by counterfeit medicines.

For more information about counterfeit medicines please visit Mhra.gov.uk

The EU Falsified Medicines Directive (FMD) came into force on 9th February 2019 and introduces measures to avoid falsified medicines being dispensed to patients. Measures include an anti-tamper device and a 2D matrix bar code which can be scanned to verify authenticity of medicine at key points in the supply chain, including right before dispensing to patients. This is a welcome step in the fight against counterfeit medicines. At MSD, our priority has always been and will continue to be, the safety of the patients which we serve. The new end-to-end verification system is there to ensure product integrity and authenticity of medicines given to patients.

For scientific or medical enquiries about MSD products and all Falsified Medicines Directive (FMD) alerts please visit our contacts page.

Product Supply Status

Use the links below to find out about the supply of our products.

For information on supply of our
pharmaceutical products

Click here

For information on supply of our
vaccines products

Click here

Ensuring continuity of supply of medicines and vaccines for patients is MSD’s highest priority and we have therefore taken all necessary steps to ensure supply of our products will not be negatively impacted once the UK leaves the EU. This includes building the necessary levels of stock for all medicines and products that enter the UK via the EU/EEA, in line with the Department of Health and Social Care’s request to pharmaceutical companies in August 2018. Should you have any queries on this, please contact us.

About Supply

Ever wondered why there are sometimes supply issues
with vaccines? Here’s why…

Reporting of side effects. If you get any side effects with any medicines, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in the medicines package leaflet. You can also report side effects directly via the Yellow Card Scheme at www.mhra.gov.uk/yellowcard or by searching for MHRA Yellow Card in the Google Play or Apple App Store. [By clicking the above link you will leave the MSD website and be taken to the MHRA website.] By reporting side effects, you can help provide more information on the safety of medicines.

This page is intended for use by UK healthcare professionals only. Trademarks appearing on this website are owned, licensed to, promoted or distributed by Merck & Co., Inc., Kenilworth, NJ, USA, its subsidiaries or affiliates, except as noted.

Job code: GB-NON-01607Date of preparation: September 2019

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