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Ziac Oral



Tell your doctor immediately if any of these unlikely but serious side effects occur:

  • very slow/irregular heartbeat
  • swelling of the ankles/feet
  • sudden/unexplained weight gain
  • loss of feeling/tingling in the fingers/toes
  • hair loss
  • vision changes
  • mental/mood changes
  • decreased sexual ability/interest
  • muscle/joint pain
  • persistent nausea/vomiting
  • yellowing eyes/skin
  • severe stomach/abdominal pain
  • dark urine
  • nervousness
  • shaking
  • confusion
  • easy bruising/bleeding
  • signs of infection (e.g., fever, persistent sore throat)
  • change in the amount of urine (not including the normal increase in urine when you first start this drug)


Seek immediate medical attention if this rare but very serious side effect occurs:

  • trouble breathing


A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any of the following symptoms of a serious allergic reaction:

  • rash
  • itching/swelling (especially of the face/tongue/throat)
  • severe dizziness
  • trouble breathing


This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Ziac Oral Precautions

Before taking this medication, tell your doctor or pharmacist if you are allergic to bisoprolol or hydrochlorothiazide; or to other beta blockers (e.g., metoprolol, atenolol); or to other thiazide diuretics (e.g., chlorothiazide); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have:

  • certain types of heart rhythm problems (e.g., sinus bradycardia, second- or third-degree atrioventricular block)
  • certain serious heart conditions (cardiogenic shock, severe heart failure)
  • inability to urinate (anuria)
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