172 If hypoglycaemia (low blood sugar) or hyperglycaemia (high blood sugar) is not treated they can be very serious and cause headaches, nausea, vomiting, dehydration, unconsciousness, coma or even death (see A and B in section 4 “ Possible Side Effects”). • Always keep spare syringes and a spare vial of Liprolog. • Always carry something to show you are diabetic. • Always carry sugar with you.