 [ Symptoms ] have high blood pressure often times over 210110 i take medication with little help should i be checking it at home  i take my blood pressure a couple times a week or after having problem with getting dizzy or extreme sweating also more often if changing medications my doctor say is i check it to often and should just not check it not sure [ Disease ] if overdose is suspected contact your local poison control center or emergency room immediately us residents can call the us national poison hotline at 1 800 222 1222 canadian residents should call their local poison control center directly symptoms of overdose may include irregular or unusually slow or fast heartbeat unusual nervousness or excitement and seizures