Use of succinylcholine is associated with several other possible adverse effects.
Bradycardia
The
structural similarity to acetylcholine gives succinylcholine the
potential to cause bradycardia, which is most often seen after a second
dose.
Bradycardia may be prevented by preadministration of an
anticholinergic agent, such as atropine or glycopyrrolate.
'Sux' pains
It
is likely that the uncoordinated muscle fasciculations cause 'sux pains'.
The jaw and neck are the areas most affected. They persist for a day or
two and are most likely in women, particularly after day surgery.