Inderal 60mg Tablets
Overview
What is this medicine?
How to Use This Medicine
To ensure you get the most benefit from your medication, follow these guidelines:
Take your medication exactly as directed by your doctor. Read all the information provided with your prescription and follow the instructions carefully.
Some medications should be taken with food, while others should be taken on an empty stomach. If you're unsure, consult with your pharmacist for guidance.
Continue taking your medication as prescribed by your doctor or healthcare provider, even if you start to feel better.
Storing and Disposing of Your Medication
To maintain the effectiveness and safety of your medication:
Store it at room temperature, avoiding freezing temperatures.
Protect the medication from heat, cold, and light sources.
Keep the container lid tightly closed when not in use.
What to Do If You Miss a Dose
If you miss a dose, follow these steps:
Take the missed dose as soon as you remember.
If it's close to the time for your next scheduled dose, skip the missed dose and resume your regular dosing schedule.
* Do not take two doses at the same time or take extra doses to make up for the missed one.
Lifestyle & Tips
- Take exactly as prescribed, do not stop abruptly without consulting your doctor.
- Monitor your blood pressure and heart rate regularly if advised by your doctor.
- Avoid sudden changes in position (e.g., standing up quickly) to prevent dizziness.
- Limit alcohol consumption as it can increase propranolol levels.
- Inform your doctor or dentist that you are taking propranolol before any surgery or dental procedures.
- If you have diabetes, monitor your blood sugar closely as propranolol can mask signs of low blood sugar.
- Avoid over-the-counter cold and allergy medications containing decongestants without consulting your doctor.
Available Forms & Alternatives
Available Strengths:
Generic Alternatives:
Dosing & Administration
Adult Dosing
Condition-Specific Dosing:
Pediatric Dosing
Dose Adjustments
Renal Impairment:
Hepatic Impairment:
Pharmacology
Mechanism of Action
Pharmacokinetics
Absorption:
Distribution:
Elimination:
Pharmacodynamics
Safety & Warnings
BLACK BOX WARNING
Side Effects
Although rare, some people may experience severe and potentially life-threatening side effects while taking this medication. If you notice any of the following symptoms, contact your doctor or seek immediate medical attention:
Signs of an allergic reaction, such as:
+ Rash or hives
+ Itching or red, swollen, blistered, or peeling skin (with or without fever)
+ Wheezing or tightness in the chest or throat
+ Difficulty breathing, swallowing, or talking
+ Unusual hoarseness or swelling of the mouth, face, lips, tongue, or throat
Signs of low blood sugar, including:
+ Dizziness or lightheadedness
+ Headache or feeling sleepy
+ Weakness, shaking, or a rapid heartbeat
+ Confusion, hunger, or sweating
Signs of lupus, such as:
+ A rash on the cheeks or other body parts
+ Easy sunburning
+ Muscle or joint pain
+ Chest pain or shortness of breath
+ Swelling in the arms or legs
Severe dizziness or fainting
New or worsening chest pain
Slow or irregular heartbeat
Shortness of breath, significant weight gain, or swelling in the arms or legs
Confusion or hallucinations (seeing or hearing things that are not there)
Memory problems or loss
Depression or other mood changes
Unusual burning, numbness, or tingling sensations
Feeling cold in the arms or legs
Changes in skin color (pale, blue, gray, purple, or red)
Changes in eyesight
Unexplained bruising or bleeding
Fever, chills, or sore throat
Difficulty getting or maintaining an erection
Severe skin reactions, including:
+ Stevens-Johnson syndrome (SJS)
+ Toxic epidermal necrolysis (TEN)
+ Other severe skin reactions, such as red, swollen, blistered, or peeling skin; skin irritation (with or without fever); red or irritated eyes; or sores in the mouth, throat, nose, or eyes
Other Possible Side Effects
Most people do not experience significant side effects, but some may occur. If you notice any of the following side effects, contact your doctor if they bother you or do not go away:
Dizziness, drowsiness, tiredness, or weakness
Upset stomach or vomiting
Stomach pain or cramps
Diarrhea or constipation
Difficulty sleeping
Strange or vivid dreams
This is not an exhaustive list of possible side effects. If you have questions or concerns about side effects, consult your doctor. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.
Seek Immediate Medical Attention If You Experience:
- Severe dizziness or fainting
- Very slow heart rate (less than 50 beats per minute)
- Difficulty breathing, wheezing, or shortness of breath
- Swelling in your ankles or feet, sudden weight gain (signs of heart failure)
- New or worsening chest pain (if stopping the medication)
- Unusual fatigue or weakness
- Coldness, numbness, or tingling in hands or feet
- Signs of depression (mood changes, loss of interest)
Before Using This Medicine
It is essential to inform your doctor about the following:
Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Be sure to describe the allergic reaction you experienced, including any symptoms that occurred.
Certain heart-related conditions, including:
+ Abnormal heart rhythms, such as heart block or sick-sinus syndrome
+ Heart failure (a weakened heart)
+ Low blood pressure
+ Poor blood circulation to your arms or legs
+ Shock caused by heart problems
+ A slow heartbeat
* Respiratory conditions, such as:
+ Asthma
+ Chronic obstructive pulmonary disease (COPD) or other breathing problems
This list is not exhaustive, and it is crucial to discuss all your medications (prescription, over-the-counter, natural products, and vitamins) and health problems with your doctor and pharmacist. They will help determine if it is safe to take this medication with your other medications and health conditions. Do not initiate, stop, or adjust the dosage of any medication without first consulting your doctor.
Precautions & Cautions
It is essential to inform all your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are taking this medication.
To ensure your safety, avoid driving and engaging in activities that require alertness until you understand how this medication affects you. When changing positions, rise slowly from sitting or lying down to minimize the risk of dizziness or fainting. Be cautious when navigating stairs.
Regularly monitor your blood pressure and heart rate as instructed by your doctor. Be aware that this medication may interfere with certain laboratory tests, so inform all your healthcare providers and lab personnel that you are taking this medication.
Before consuming alcohol, discuss the potential risks with your doctor. If you smoke, consult with your doctor, as this medication may mask symptoms of low blood sugar, such as a rapid heartbeat, which can increase the risk of severe or prolonged hypoglycemia. This is particularly concerning for individuals with diabetes, children, and those who are fasting, undergoing surgery, or experiencing nausea and vomiting. If you have questions or concerns, consult with your doctor.
If you have diabetes, it is crucial to closely monitor your blood sugar levels while taking this medication.
Do not abruptly stop taking this medication, as this can lead to worsening chest pain or even a heart attack, especially if you have pre-existing heart disease. To minimize the risk of side effects, your doctor will guide you on how to gradually discontinue the medication. If you experience new or worsening chest pain or other heart problems, seek medical attention immediately.
This medication may make it more challenging to recognize symptoms of an overactive thyroid, such as a rapid heartbeat. If you have hyperthyroidism and suddenly stop taking this medication, your condition may worsen and become life-threatening. Consult with your doctor to discuss the potential risks.
If you have high blood pressure and are taking this medication, consult with your doctor before using over-the-counter products that may increase blood pressure, such as cough and cold medications, diet pills, stimulants, non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen or naproxen, and certain natural products or aids.
If you have a history of severe allergic reactions, inform your doctor, as you may be at risk of an even more severe reaction if you are exposed to the allergen again. If you use epinephrine to treat severe allergic reactions, consult with your doctor, as this medication may reduce the effectiveness of epinephrine.
If you are pregnant, plan to become pregnant, or are breastfeeding, discuss the benefits and risks of this medication with your doctor to ensure the best possible outcome for you and your baby.
Overdose Information
Overdose Symptoms:
- Severe bradycardia (very slow heart rate)
- Hypotension (very low blood pressure)
- Cardiogenic shock
- Bronchospasm (difficulty breathing)
- Hypoglycemia (low blood sugar)
- Seizures
- Cardiac arrest
What to Do:
Seek immediate medical attention. Call 911 or your local emergency number. For poison control, call 1-800-222-1222. Treatment may involve IV fluids, atropine, glucagon, vasopressors, or other supportive measures.
Drug Interactions
Contraindicated Interactions
- Fingolimod (risk of severe bradycardia)
- Thioridazine (increased thioridazine levels, QT prolongation)
- Cimetidine (significant increase in propranolol levels)
Major Interactions
- Non-dihydropyridine calcium channel blockers (e.g., verapamil, diltiazem - risk of severe bradycardia, AV block, heart failure)
- Other beta-blockers (additive effects)
- Clonidine (risk of rebound hypertension upon clonidine withdrawal if propranolol is not tapered first)
- Digoxin (additive bradycardia)
- Insulin and oral hypoglycemics (masking of hypoglycemia symptoms, prolonged hypoglycemia)
- MAO inhibitors (risk of hypertensive crisis)
- Alpha-1 blockers (e.g., prazosin - risk of first-dose hypotension)
- Ergot alkaloids (increased peripheral vasoconstriction)
- Phenytoin, phenobarbital, rifampin (decreased propranolol levels)
- Fluvoxamine, fluoxetine, paroxetine, quinidine (increased propranolol levels)
Moderate Interactions
Minor Interactions
- Antacids (may decrease propranolol absorption)
Monitoring
Baseline Monitoring
Rationale: To establish baseline and guide initial dosing for hypertension/angina.
Timing: Prior to initiation
Rationale: To establish baseline and assess risk of bradycardia.
Timing: Prior to initiation
Rationale: To assess for pre-existing conduction abnormalities (e.g., AV block).
Timing: Prior to initiation (especially in patients with cardiac history)
Rationale: To assess baseline kidney function, especially in patients with pre-existing renal impairment.
Timing: Prior to initiation
Rationale: To assess baseline liver function, as propranolol is extensively metabolized by the liver.
Timing: Prior to initiation
Rationale: Propranolol can mask symptoms of hypoglycemia and prolong hypoglycemic episodes.
Timing: Prior to initiation
Routine Monitoring
Frequency: Regularly, especially during dose titration and periodically thereafter (e.g., monthly to quarterly)
Target: Individualized based on indication (e.g., <130/80 mmHg for hypertension)
Action Threshold: Persistent hypotension (e.g., SBP <90 mmHg) or inadequate BP control
Frequency: Regularly, especially during dose titration and periodically thereafter (e.g., monthly to quarterly)
Target: Typically >50-60 bpm at rest (unless specific indication for lower HR)
Action Threshold: Persistent bradycardia (<50 bpm) or symptomatic bradycardia
Frequency: Regularly (patient self-monitoring and clinical assessment)
Target: Absence of new or worsening symptoms (e.g., dyspnea, edema, weight gain)
Action Threshold: Development or worsening of heart failure symptoms
Frequency: Regularly (patient self-monitoring)
Target: Individualized glycemic targets
Action Threshold: Frequent or severe hypoglycemic episodes
Frequency: Periodically, especially in patients with pre-existing impairment or on long-term therapy (e.g., annually or as clinically indicated)
Target: Within normal limits or stable baseline
Action Threshold: Significant worsening of renal or liver function
Symptom Monitoring
- Bradycardia (slow pulse)
- Hypotension (dizziness, lightheadedness, fainting)
- Fatigue, weakness
- Cold extremities
- Bronchospasm (wheezing, shortness of breath)
- Worsening heart failure (swelling, weight gain, increased shortness of breath)
- Masked hypoglycemia symptoms (in diabetics)
- Depression, sleep disturbances
- Sexual dysfunction
Special Patient Groups
Pregnancy
Propranolol is classified as Pregnancy Category C. It should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. It crosses the placenta and has been associated with fetal/neonatal bradycardia, hypoglycemia, and intrauterine growth restriction. Close monitoring of the neonate for signs of beta-blockade is recommended.
Trimester-Specific Risks:
Lactation
Propranolol is excreted into breast milk in small amounts (Lactation Risk L3 - Moderately Safe). While generally considered compatible with breastfeeding, monitor the infant for signs of beta-blockade (e.g., bradycardia, lethargy, poor feeding, hypoglycemia), especially in premature or very young infants.
Pediatric Use
Use with caution and careful dose titration. Dosing is weight-based and varies by indication. Neonates and infants are particularly sensitive to the effects of beta-blockade. Not recommended for routine use in neonates/infants except for specific conditions like infantile hemangioma, where specialized protocols exist.
Geriatric Use
Start with lower doses and titrate slowly due to increased sensitivity to beta-blockade, potential for reduced renal/hepatic function, and increased risk of adverse effects (e.g., bradycardia, hypotension, CNS effects). Monitor closely for orthostatic hypotension and falls.
Clinical Information
Clinical Pearls
- Always taper propranolol gradually over 1-2 weeks when discontinuing, especially in patients with coronary artery disease, to avoid rebound angina, MI, or arrhythmias.
- Propranolol is highly lipophilic, leading to significant CNS penetration, which can cause side effects like fatigue, depression, and sleep disturbances.
- It is a non-selective beta-blocker, meaning it blocks both beta-1 and beta-2 receptors. This makes it contraindicated or used with extreme caution in patients with asthma, COPD, or severe peripheral artery disease due to the risk of bronchospasm and vasoconstriction.
- Can mask signs of hypoglycemia (e.g., tremor, palpitations) in diabetic patients, making only sweating a reliable indicator.
- Often used off-label for performance anxiety due to its ability to reduce physical symptoms like tremor and palpitations.
- Food increases the bioavailability of propranolol, so consistent administration with food is recommended, especially for extended-release formulations, to ensure consistent absorption.
Alternative Therapies
- Other beta-blockers (e.g., metoprolol, atenolol, carvedilol, bisoprolol)
- Calcium channel blockers (e.g., amlodipine, nifedipine, verapamil, diltiazem)
- ACE inhibitors (e.g., lisinopril, enalapril)
- Angiotensin Receptor Blockers (ARBs) (e.g., losartan, valsartan)
- Diuretics (e.g., hydrochlorothiazide, furosemide)
- Alpha-blockers (e.g., prazosin, doxazosin)
- Central alpha-agonists (e.g., clonidine)