Search Harrisburg: penbutolol

pen-BUE-toe-lol SUL-fate

Commonly used brand name(s)

In the U.S.

Levatol

Available Dosage Forms:

Tablet

Therapeutic Class: Cardiovascular Agent

Pharmacologic Class: Penbutolol

Uses For penbutolol

Penbutolol is used alone or together with other medicines, including a diuretic or "water pill" such as hydrochlorothiazide (HCTZ) to treat high blood pressure (hypertension). High blood pressure adds to the workload of the heart and arteries. If it continues for a long time, the heart and arteries may not function properly. This can damage the blood vessels of the brain, heart, and kidneys, resulting in a stroke, heart failure, or kidney failure. High blood pressure may also increase the risk of heart attacks. These problems may be less likely to occur if blood pressure is controlled.

penbutolol is a beta-blocker. It works by affecting the response to nerve impulses in certain parts of the body, like the heart. As a result, the heart beats slower and decreases the blood pressure. When the blood pressure is lowered, the amount of blood and oxygen is increased to the heart.

penbutolol is available only with your doctor's prescription.

Before Using penbutolol

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For penbutolol, the following should be considered:

Allergies

Tell your doctor if you have ever had any unusual or allergic reaction to penbutolol or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

Pediatric

Appropriate studies have not been performed on the relationship of age to the effects of penbutolol in the pediatric population. Safety and efficacy have not been established.

Geriatric

Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of penbutolol in the elderly. However, elderly patients are more likely to have age-related liver, kidney, or heart problems, which may require caution and an adjustment in the dose for patients receiving penbutolol.

Pregnancy

	Pregnancy Category	Explanation
All Trimesters	C	Animal studies have shown an adverse effect and there are no adequate studies in pregnant women OR no animal studies have been conducted and there are no adequate studies in pregnant women.

Breast Feeding

There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.

Interactions with Medicines

Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking penbutolol, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

Using penbutolol with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

Albuterol

Amiodarone

Arformoterol

Bambuterol

Bitolterol

Broxaterol

Clenbuterol

Clonidine

Colterol

Diltiazem

Dronedarone

Epinephrine

Fenoldopam

Fenoterol

Formoterol

Hexoprenaline

Indacaterol

Isoetharine

Levalbuterol

Metaproterenol

Pirbuterol

Procaterol

Reproterol

Rimiterol

Ritodrine

Salmeterol

Terbutaline

Tretoquinol

Tulobuterol

Verapamil

Using penbutolol with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

Acarbose

Aceclofenac

Acemetacin

Acetohexamide

Alclofenac

Alfuzosin

Amlodipine

Apazone

Arbutamine

Benfluorex

Benoxaprofen

Bromfenac

Bufexamac

Bunazosin

Carprofen

Chlorpropamide

Clometacin

Clonixin

Dexketoprofen

Diclofenac

Diflunisal

Digoxin

Dipyrone

Doxazosin

Droxicam

Etodolac

Etofenamate

Felbinac

Felodipine

Fenbufen

Fenoprofen

Fentiazac

Floctafenine

Flufenamic Acid

Flurbiprofen

Gliclazide

Glimepiride

Glipizide

Gliquidone

Glyburide

Guar Gum

Ibuprofen

Indomethacin

Indoprofen

Insulin

Insulin Aspart, Recombinant

Insulin Glulisine

Insulin Lispro, Recombinant

Isoxicam

Ketoprofen

Ketorolac

Lacidipine

Lercanidipine

Lidocaine

Lornoxicam

Manidipine

Meclofenamate

Mefenamic Acid

Meloxicam

Metformin

Mibefradil

Miglitol

Moxisylyte

Nabumetone

Naproxen

Nicardipine

Nifedipine

Niflumic Acid

Nilvadipine

Nimesulide

Nimodipine

Nisoldipine

Nitrendipine

Oxaprozin

Oxyphenbutazone

Phenoxybenzamine

Phentolamine

Phenylbutazone

Pirazolac

Piroxicam

Pirprofen

Pranidipine

Prazosin

Propyphenazone

Proquazone

Repaglinide

St John's Wort

Sulindac

Suprofen

Tamsulosin

Tenidap

Tenoxicam

Terazosin

Tiaprofenic Acid

Tolazamide

Tolbutamide

Tolmetin

Trimazosin

Troglitazone

Urapidil

Zomepirac

Interactions with Food/Tobacco/Alcohol

Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.

Proper Use of penbutolol

In addition to the use of penbutolol, treatment for your high blood pressure may include weight control and changes in the types of foods you eat, especially foods high in sodium (salt). Your doctor will tell you which of these are most important for you. You should check with your doctor before changing your diet.

Many patients who have high blood pressure will not notice any signs of the problem. In fact, many may feel normal. It is very important that you take your medicine exactly as directed and that you keep your appointments with your doctor even if you feel well.

Remember that penbutolol will not cure your high blood pressure, but it does help control it. You must continue to take it as directed if you expect to lower your blood pressure and keep it down. You may have to take high blood pressure medicine for the rest of your life. If high blood pressure is not treated, it can cause serious problems such as heart failure, blood vessel disease, stroke, or kidney disease.

You may take penbutolol with or without food.

Dosing

The dose of penbutolol will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of penbutolol. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

For oral dosage form (tablets):
- For high blood pressure:
  - Adults—At first, 20 milligrams (mg) once a day. Your doctor may increase your dose if needed.
  - Children—Use and dose must be determined by your doctor.

Missed Dose

If you miss a dose of penbutolol, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.

Storage

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.

Keep out of the reach of children.

Do not keep outdated medicine or medicine no longer needed.

Ask your healthcare professional how you should dispose of any medicine you do not use.

Precautions While Using penbutolol

It is very important that your doctor check your progress at regular visits to make sure penbutolol is working properly and to check for unwanted effects.

penbutolol may cause heart failure in some patients. Stop using penbutolol and check with your doctor right away if you are having chest pain or discomfort; dilated neck veins; extreme fatigue; irregular breathing; an irregular heartbeat; shortness of breath; swelling of the face, fingers, feet, or lower legs; weight gain; or wheezing.

Do not interrupt or stop taking penbutolol without first checking with your doctor. Your doctor may want you to gradually reduce the amount you are taking before stopping it completely. Some conditions may become worse when the medicine is stopped suddenly, which can be dangerous.

penbutolol may cause a serious type of allergic reaction called anaphylaxis. Anaphylaxis can be life-threatening and requires immediate medical attention. Call your doctor right away if you have a rash; itching; hoarseness; trouble breathing; trouble swallowing; or any swelling of your hands, face, or mouth while you are using penbutolol.

Make sure any doctor or dentist who treats you knows that you are using penbutolol. Do not stop taking penbutolol before surgery without your doctor's approval.

penbutolol may cause changes in your blood sugar levels. Also, penbutolol may cover up signs of low blood sugar, such as a rapid pulse rate. Check with your doctor if you have these problems or if you notice a change in the results of your blood or urine sugar tests.

Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.

penbutolol Side Effects

Along 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 immediately if any of the following side effects occur:

Less common

Chest pain

difficult or labored breathing

increased sweating

pain in the limbs

shortness of breath

tightness in the chest

wheezing

Incidence not known

Abdominal or stomach tenderness

abdominal or stomach pain, usually after eating a meal

black, tarry stools

blood in the urine

bloody nose

bloody stools

constipation

cough or hoarseness

diarrhea

fever with or without chills or sore throat

general feeling of tiredness or weakness

heavier menstrual periods

lower back or side pain

nausea

painful or difficult urination

pinpoint red spots on the skin

rectal bleeding

skin rash

sore throat

sores, ulcers, or white spots on the lips or in the mouth

unusual bleeding or bruising

unusual tiredness or weakness

vomiting

worsening of heart block

Some 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. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Symptoms of overdose

Blurred vision

chest pain or discomfort

confusion

difficulty with breathing

dilated neck veins

dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position

extreme fatigue

irregular breathing

noisy breathing

slow or irregular heartbeat

sweating

swelling of the face, fingers, feet, or lower legs

weight gain

More common

Headache

Less common

Acid or sour stomach

belching

body aches or pain

chills

difficulty with breathing

ear congestion

fever

heartburn

indigestion

lack or loss of strength

loss of voice

nasal congestion

nausea

runny nose

sleeplessness

sneezing

sore throat

stomach discomfort, upset, or pain

trouble sleeping

unable to sleep

Rare

Decreased interest in sexual intercourse

inability to have or keep an erection

loss in sexual ability, desire, drive, or performance

Incidence not known

Crying

decreased awareness or responsiveness

depersonalization

dysphoria

euphoria

hair loss or thinning of the hair

memory loss

mental depression

mimicry of speech or movements

mutism

negativism

pain of the penis on erection

paranoia

peculiar postures or movements, mannerisms or grimacing

quick to react or overreact emotionally

rapidly changing moods

reddened skin

severe sleepiness

skin rash

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

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

See also: penbutolol side effects (in more detail)

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More penbutolol resources

Penbutolol Side Effects (in more detail)
Penbutolol Dosage
Penbutolol Use in Pregnancy & Breastfeeding
Penbutolol Drug Interactions
Penbutolol Support Group
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penbutolol Concise Consumer Information (Cerner Multum)

Penbutolol MedFacts Consumer Leaflet (Wolters Kluwer)

Levatol Prescribing Information (FDA)

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Friday, October 14, 2016

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