Corgard is a beta blocker used as a blood pressure medication and a treatment for angina, the chest pain caused by inadequate blood flow to the heart. Doctors may prescribe the drug alone or with other medications.
Corgard, a brand name for the generic nadolol, blocks adrenaline and other substances in the body from affecting the heart and blood vessels,
WebMD reports. It lowers high blood pressure, which helps to prevent heart attacks, strokes, and kidney problems. The blood pressure drug also lowers the heart rate and puts less of a strain on the heart.
Dr. Crandall: Normal Blood Pressure Linked to Key Discovery
As a result, there is a reduction in the amount of blood pumped out by the heart, so blood pressure is decreased from the more efficient blood flow,
according to Drugs.com.
Drowsiness and dizziness are common side effects of Corgard. Consuming alcohol or taking other medicine with the blood pressure medication could worsen these side effects. Upset stomach, nausea, diarrhea, and constipation are also possible side effects.
Many blood pressure drugs cause patients to feel tired for a few weeks after beginning treatment, Drugs.com notes. People are advised to continue taking the medication even with the common side effects, but to notify the doctor if new effects occur.
Severe allergic reactions require immediate medical attention. Such reactions include hives, rash, itching, tightness in the chest, breathing difficulties, or swelling of the face, mouth, lips, or tongue.
Alert: Blood Pressure Information Your Doctor Hasn't Told You
Other serious side effects that need immediate attention include:
• Vision changes, such as blurred vision
• Numbness or tingling sensations
• Burning
• Fever
• Chills
• Persistent sore throat
• Fainting
• Mood or behavior changes
• Short-term memory problems
• Severe dizziness or lightheadedness
• Hallucinations
• Irregular heartbeat
• Shortness of breath
• Unusual bruising or bleeding
• Sudden and unexplained weight gain
• Swelling in the hands, ankles, or feet
It’s important for patients to continue taking the blood pressure medication as directed even when feeling fine because high blood pressure usually has no symptoms. A doctor can readjust the dosage for better results or to deal with side effects.
Special: Blood Pressure Breakthrough From Nobel-Winning Scientist
© 2026 Newsmax. All rights reserved.