Propranolol XL

Propranolol XL Drug Information

What Should I Tell My Healthcare Provider Before Taking Propranolol XL?

You should talk with your healthcare provider prior to taking this medicine if you have:

Liver disease, such as liver failure, cirrhosis, or hepatitis
Kidney disease, such as kidney failure (renal failure)
Diabetes
Chest pain (angina)
Heart failure
A slow heart rate (bradycardia)
Heart block
Sick sinus syndrome
Asthma
Chronic obstructive pulmonary disease (COPD)
Hyperthyroidism
Have an upcoming surgery
Any allergies, including allergies to food, dyes, or preservatives.

Also, let your healthcare provider know if you are:

Pregnant or thinking of becoming pregnant (see InnoPran XL and Pregnancy)
Breastfeeding (see InnoPran XL and Breastfeeding).

Make sure to tell your healthcare provider about all other medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.

(Click Precautions and Warnings With Propranolol XL to learn more, including information on who should not take the drug.)

How Does It Work?

Propranolol XL belongs to a group of drugs called beta-adrenergic blocking agents, more often known as beta blockers. As the name implies, these medications block beta receptors in the body. Beta receptors are located in a number of places within the body, including the heart and blood vessels. Stress hormones (such as adrenaline) bind to these receptors and cause certain reactions in the body, such as:

Increased heart rate
Increased force with which the heart pumps blood
Higher blood pressure (both systolic blood pressure and diastolic blood pressure)
Constricted blood vessels.

By blocking beta-1 receptors, propranolol XL causes the reverse effect of stress hormones. It decreases heart rate and both systolic and diastolic blood pressure.

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