A doctor has issued a warning about a certain heart medication that could “turn your face blue”. The medical expert recounted his own experience with a patient who came for an appointment with “blue-grey discolouration”. When it comes to taking medication, there are usually a number of side effects to look out for . These could be sickness, mood swings, or headaches , among others. However, a specific drug could yield unexpected results. In a video uploaded to social media platform TikTok, NHS