Beta-adrenergic Blocking Agents (Systemic)
Side Effects of This MedicineAlong with its needed effects, a medicine may cause some unwanted effects.
Although not all of these side effects may occur, if they do occur they may
need medical attention.
Check with your doctor as soon as possible if any of the following side
effects occur:
Less common
Breathing difficulty and/or wheezing; cold hands and feet; mental depression; shortness of breath; slow heartbeat
(especially less than 50 beats per minute); swelling
of ankles, feet, and/or lower legs
Rare
Back pain or joint pain; chest pain; confusion (especially in elderly patients); dark urine - for acebutolol, bisoprolol, or labetalol; dizziness or lightheadedness when getting up from a lying or
sitting position; fever and sore throat; hallucinations (seeing, hearing, or feeling things that are not
there); irregular heartbeat; red, scaling, or crusted skin; skin rash; unusual bleeding and bruising; yellow
eyes or skin - for acebutolol, bisoprolol, or labetalol
Signs and symptoms of overdose (in the order in which they may occur)
Slow heartbeat; dizziness (severe) or
fainting; fast or irregular heartbeat; difficulty in breathing; bluish-colored
fingernails or palms of hands; convulsions (seizures)
Other side effects may occur that usually do not need medical attention.
These side effects may go away during treatment as your body adjusts to the
medicine. However, check with your doctor if any of the following side effects
continue or are bothersome:
Less common or rare
Anxiety and/or nervousness; changes
in taste - for labetalol only; constipation; diarrhea; dry, sore eyes; frequent urination - for acebutolol and carteolol only; itching of skin; nausea or vomiting; nightmares and vivid dreams; numbness and/or tingling of fingers and/or toes; numbness and/or tingling of skin, especially on scalp - for labetalol
only; stomach discomfort; stuffy nose
Although not all of the side
effects listed above have been reported for all of these medicines, they have
been reported for at least one of them. Since all of the beta-adrenergic blocking
agents are very similar, any of the above side effects may occur with any
of these medicines. However, they may be more or less common with some agents
than with others.
After you have been taking
a beta-blocker for a while, it may cause unpleasant or even harmful effects
if you stop taking it too suddenly. After you stop taking this medicine or
while you are gradually reducing the amount you are taking, check with your
doctor right away if any of the following occur:
Chest pain; fast or irregular heartbeat; general feeling of discomfort or illness or weakness; headache; shortness of
breath (sudden); sweating; trembling For
patients taking labetalol
:
-
You may notice a tingling feeling on your scalp when you first begin
to take labetalol. This is to be expected and usually goes away after you
have been taking labetalol for a while.
Other side effects not listed above may also occur in
some patients. If you notice any other effects, check with your doctor.
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