Hi and thank you for your post. 

I'm sorry to hear that you experienced shivery symptoms. I understand that it can be concerning. It's important not to make assumptions about your condition.

If you have a specialist nurse, I would recommend reaching out to them and explaining your symptoms. They can provide you with the best advice and guidance on what to do next.

We do have some information on our website about Hydroxycarbamide and potential side effects which you may find interesting to read.

I hope this information helps.  Please get back to us if you need any more information or support.  You may find it helpful to talk things through with one of the nurses on our helpline.  The number to call is Freephone 0808 800 4040 and the lines are open from 9am till 5pm Monday to Friday.

Kind regards,

Tina