Warfarin: reports of calciphylaxis

Calciphylaxis is a very rare but serious condition causing vascular calcification and skin necrosis.

Citalopram: suspected drug interaction with cocaine; prescribers should consider enquiring about illicit drug use

Possible illicit drug use should be considered when prescribing medicines that have the potential to interact adversely.

N-acetylcysteine: risk of false-low biochemistry test results due to interference with Siemens assays

N-acetylcysteine may interfere with assays from Siemens ADVIA Chemistry and Dimension/Dimension Vista instruments, leading to false-low biochemistry test results.

Letters sent to healthcare professionals in June 2016

In June 2016, a letter was sent to healthcare professionals about Thalidomide Celgene.

Posted on the UK MHRA website on 18 July 2016