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PENBUTOLOL (pen BYOO toe lole) is a beta-blocker. Beta-blockers reduce the workload on the heart and help it to beat more regularly. This medicine is used to treat high blood pressure.
Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. Take your medicine at regular intervals. Do not take it more often than directed. Do not stop taking this medicine suddenly. This could lead to serious heart-related effects.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
changes in vision
cold or numb hands or feet
fast, irregular, or slow heartbeat
feeling faint or lightheaded, falls
rapid weight gain
swollen ankles, legs
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
change in sex drive or performance
nightmares or trouble sleeping
short term memory loss
stomach nausea, upset
Do not take this medicine with any of the following medications:
This medicine may also interact with the following medications:
ephedra, Ma Huang
ergot alkaloids like dihydroergotamine, ergonovine, ergotamine, methylergonovine
medicines for blood pressure like amlodipine, diltiazem, verapamil
medicines for irregular heart rhythm
medicines for sleep during surgery
NSAIDs, medicines for pain and inflammation, like ibuprofen or naproxen
stimulant medicines like dextroamphetamine, pseudoephedrine, and others
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
Keep out of the reach of children.
Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F). Close tightly and protect from light. Throw away any unused medicine after the expiration date.
They need to know if you have any of these conditions:
heart or vessel disease like slow heart rate, worsening heart failure, heart block, sick sinus syndrome or Raynaud's disease
lung or breathing disease, like asthma or emphysema
an unusual or allergic reaction to penbutolol, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
Visit your doctor or health care professional for regular checks on your progress. Check your blood pressure as directed. Ask your doctor or health care professional what your blood pressure should be and when you should contact him or her.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.
This medicine can affect blood sugar levels. If you have diabetes, check with your doctor or health care professional before you change your diet or the dose of your diabetic medicine.
Do not treat yourself for coughs, colds, or pain while you are taking this medicine without asking your doctor or health care professional for advice. Some ingredients may increase your blood pressure.
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