Hello Dear and thanks for the query
is a beta-blocker
and it reduces blood pressure by reducing heart rate
. So it is the effect of the medicine that Blood pressure is falling. If your child is facing any problem like weakness, dizziness
, vertigo than you have to consult your doctor and adjust your dose.
The other possibility is that instead of beta-blockers, calcium channel blockers can be used. Please consult your doctor and get the best your son is needed.