AstraZeneca removes Covid vaccine worldwide

Serious side effects are rare and happen in less than 1 in 10,000 people.



Call your doctor or call 111 straight away if:



you get a general feeling of being unwell with severe tiredness, fast or shallow breathing, being cold and a slow heartbeat

the whites of your eyes turn yellow, or your skin turns yellow, although this may be less obvious on brown or black skin – this can be a sign of liver problems

Serious allergic reaction

In rare cases, it's possible to have a serious allergic reaction (anaphylaxis) to metformin.



Immediate action required:Call 999 now if:

your lips, mouth, throat or tongue suddenly become swollen

you're breathing very fast or struggling to breathe (you may become very wheezy or feel like you're choking or gasping for air)

your throat feels tight or you're struggling to swallow

your skin, tongue or lips turn blue, grey or pale (if you have black or brown skin, this may be easier to see on the palms of your hands or soles of your feet)

you suddenly become very confused, drowsy or dizzy

someone faints and cannot be woken up