What is Isobar?
Preventing symptoms of angina (chest pain) caused by heart disease. Isobar extended-release capsules is used alone or with other medicines. Isobar extended-release capsules is NOT intended for the immediate relief of acute attacks of angina. It may also be used for other conditions as determined by your doctor.
Isobar extended-release capsules is a nitrate. It works by relaxing the blood vessels in the body, allowing them to widen. This lets more blood flow through the blood vessels, which reduces the work the heart has to do to pump blood. This reduces the oxygen needs of the heart and makes chest pain go away.
Isobar indications
Angina Pectoris:Oral Tablet:
Prophylaxis of ischemic heart pain associated with coronary insufficiency. Isobar may reduce the frequency, duration and severity of anginal attacks. Exercise tolerance may be improved and the need for nitroglycerin may be reduced. The oral tablets are not indicated for the treatment of an anginal attack.
Sublingual Tablet: Treatment of angina pectoris and prophylaxis in situations likely to provoke an anginal attack ie, physical or emotional stress.
Congestive Heart Failure: Acute and chronic congestive heart failure (including that associated with myocardial infarction). Based on current knowledge, Isobar should be considered only as an adjunct to the more conventional modes of therapy (cardiac glycosides and diuretics); however, in refractory cases, it may be used alone or concomitantly with other vasodilators. Isobar is particularly effective in patients with increased left ventricular end diastolic pressure (LVEDP), "backward failure" and normal or approximately normal cardiac output in whom pulmonary congestion or edema is the primary problem. Isobar is especially recommended when coronary artery disease is the cause of congestive heart failure, in which case its antianginal effect is of additional value.
How should I use Isobar?
Use Isobar extended-release capsules as directed by your doctor. Check the label on the medicine for exact dosing instructions.
- Take Isobar extended-release capsules by mouth on an empty stomach with a full glass of water (8 oz [240 mL]).
- Swallow Isobar extended-release capsules whole. Do not break, crush, or chew before swallowing.
- If you miss a dose of Isobar extended-release capsules, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.
Ask your health care provider any questions you may have about how to use Isobar extended-release capsules.
Uses of Isobar in details
Use: Labeled Indications
Angina pectoris, prevention: Prevention of angina pectoris due to coronary artery disease.
Note: Due to slower onset of action, Isobar is not the drug of choice to abort an acute anginal episode.
Off Label Uses
Achalasia
Based on the American College of Gastroenterology (ACG) guidelines on the diagnosis and management of achalasia, Isobar may be considered for patients with achalasia who cannot use or refuse more definitive therapies (pneumatic dilation or surgical myotomy) and patients who have failed botulinum toxin injections.
Heart failure with reduced ejection fraction
Data from a randomized, double-blind trial comparing enalapril and hydralazine plus Isobar in patients with chronic heart failure support the use of Isobar (in combination with hydralazine) in patients with intolerance to ACE inhibitor therapy.
Isobar description
Each tablet of Isobar 5 mg contains 5 mg of Isobar.
Each tablet of Isobar 10 mg contains 10 mg of Isobar.
Each sustained-release tablet of Isobar 20 mg contains 20 mg of Isobar.
Each sustained-release tablet of Isobar 40 mg contains 40 mg of Isobar.
Isobar dosage
As noted under "CLINICAL PHARMACOLOGY," multiple-dose studies with Isobar and other nitrates have shown that maintenance of continuous 24-hour plasma levels results in refractory tolerance. Every dosing regimen for Isobar tablets must provide a daily dose-free interval to minimize the development of this tolerance. With immediate-release Isobar, it appears that one daily dose-free interval must be at least 14 hours long.
As also noted under "CLINICAL PHARMACOLOGY," the effects of the second and later doses have been smaller and shorter-lasting than the effects of the first.
Large controlled studies with other nitrates suggest that no dosing regimen with Isobar tablets should be expected to provide more than about 12 hours of continuous anti-anginal efficacy per day.
As with all titratable drugs, it is important to administer the minimum dose which produces the desired clinical effect. The usual starting dose of Isobar is 5 mg to 20 mg, two or three times daily. For maintenance therapy, 10 mg to 40 mg, two or three times daily is recommended. Some patients may require higher doses. A daily dose-free interval of at least 14 hours is advisable to minimize tolerance. The optimal interval will vary with the individual patient, dose and regimen.
Isobar interactions
See also:
What other drugs will affect Isobar?
Blood Pressure Lowering Agents: The concomitant use of drugs with blood pressure lowering properties, e.g. vasodilators, beta-blockers, calcium channel antagonists, ACE inhibitors, neuroleptics or tricyclic antidepressants and alcohol may potentiate the antihypertensive effect of Isobar.
Phosphodiesterase Inhibitors: A blood pressure lowering effect of Isobar will be increased, if used together with phosphodiesterase inhibitors (e.g. sildenafil, tadalafil, vardenafil). This might lead to life-threatening cardiovascular complications. Patients who are on Isobar therapy therefore must not use phosphodiesterase inhibitors (e.g. sildenafil, tadalafil, vardenafil).
Patients who have recently taken phosphodiesterase inhibitors (e.g. sildenafil, vardenafil, tadalafil) therefore must not receive acute Isobar therapy.
Dihydroergotamine: Isobar used in combination with dihydroergotamine may lead to higher blood concentration of dihydroergotamine and thus increase the effect of this medicinal product.
Sapropterine: Sapropterine contains the API Tetrahydrobiopterine (BH4). BH4 is a cofactor for nitric oxide synthetase. Caution is recommended during concomitant use of sapropterine-containing medicine with all agents that cause vasodilation by affecting nitric oxide (NO) metabolism or action, including classical NO donors [e.g. glyceryl trinitrate (GTN), Isobar (ISDN), Isobar mononitrate and others].
Isobar side effects
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What are the possible side effects of Isobar?
Adverse reactions to Isobar are generally dose-related, and almost all of these reactions are the result of Isobar's activity as a vasodilator. Headache, which may be severe, is the most commonly reported side effect. Headache may be recurrent with each daily dose, especially at higher doses. Transient episodes of lightheadedness, occasionally related to blood pressure changes, may also occur. Hypotension occurs infrequently, but in some patients it may be severe enough to warrant discontinuation of therapy. Syncope, crescendo angina, and rebound hypertension have been reported but are uncommon.
Extremely rarely, ordinary doses of organic nitrates have caused methemoglobinemia in normal-seeming patients. Methemoglobinemia is so infrequent at these doses that further discussion of its diagnosis and treatment is deferred.
Data are not available to allow estimation of the frequency of adverse reactions during treatment with Isobar tablets.
To report SUSPECTED ADVERSE REACTIONS contact AvKARE, Inc. at 1-855-361-3993; email drugsafety@avkare.com; or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
Isobar contraindications
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What is the most important information I should know about Isobar?
Do not use Isobar if you are taking sildenafil (Viagra). Serious, life-threatening side effects can occur if you take Isobar while you are using sildenafil.
You should not use this medication if you are allergic to Isobar, Isobar mononitrate (Imdur, ISMO, Monoket), or nitroglycerin, or if you have early signs of a heart attack (chest pain or heavy feeling, pain spreading to the arm or shoulder, nausea, sweating, general ill feeling).
Before taking Isobar, tell your doctor if you have congestive heart failure, low blood pressure, or kidney disease.
Isobar can cause severe headaches, especially when you first start using it. These headaches may gradually become less severe as you continue to use the medication. Do not stop taking Isobar. Ask your doctor before using any headache pain medication.
Only the sublingual tablet should be used to treat an angina attack that has already begun.
Isobar regular and extended-release tablets are used to prevent angina attacks but will not treat an angina attack.
It is important to keep taking this medicine as directed to prevent an angina attack. Get your prescription refilled before you run out of medicine completely.
Do not stop taking Isobar suddenly. Stopping suddenly could cause a severe angina attack.
Active ingredient matches for Isobar:
Isosorbide Dinitrate in France, Philippines, Tunisia.
Methyclothiazide/Triamterene in France, Tunisia.
Unit description / dosage (Manufacturer) | Price, USD |
Tablet; Oral; Methyclothiazide 5 mg; Triamterene 150 mg | |
Isobar 30 Tablet | |
List of Isobar substitutes (brand and generic names): | |
Iso-Puren (Germany) | |
Tablet; Oral; Isosorbide Dinitrate 5 mg (Alpharma-isis) | |
Isobenil (Philippines) | |
Isobenil 5 mg x 100's | |
Isobenil 10 mg x 100's | |
Isobid (Pakistan) | |
Isobid 0.1 % x 5 tube x 5 mL | |
Isobide (Japan, Taiwan) | |
Isobide 10 mg x 500's | |
Isobide 700 mg/1 mL x 1 mL | |
Isobide / Weidar 10 mg x 1000's | |
Isobide / Weidar 10 mg x 100 x 10's | |
Isobin (Singapore) | |
Isobinate (Thailand) | |
Isobinate 10 mg x 500's (General Drugs House) | |
Isobinate tab 10 mg 500's (General Drugs House) | |
Isocard (Bahrain, Dominican Republic, France, Iraq, Lebanon, Libya, Luxembourg, Nigeria, Oman, Saudi Arabia, Sudan, United Arab Emirates, Yemen) | |
Solution; Sublingual; Isosorbide Dinitrate 1.25 mg (Eastern pharmaceuticals) | |
Spray; Sublingual; Isosorbide Dinitrate 1.25 mg (Eastern pharmaceuticals) | |
Isocard-spray (France) | |
Isocardide (Israel) | |
Tablet; Oral; Isosorbide Dinitrate 20 mg (Sam-on) | |
Tablet; Oral; Isosorbide Dinitrate 30 mg (Sam-on) | |
Isochron | |
Isocin (Taiwan) | |
Isocin 0.1 % x 10 mL x 10's (Zee Laboratories Ltd) | |
Isocin 300+450 Tablet (Zee Laboratories Ltd) | $ 0.07 |
ISOCIN 450MG/300MG TABLET (Zee Laboratories Ltd) | $ 0.07 |
ISOCIN - KID 100MG/100MG TABLET (Zee Laboratories Ltd) | $ 0.02 |
Isocord (Brazil, Colombia) | |
Isocoronal R (Japan) | |
Isoday (Kuwait) | |
Capsule, Retard; Oral; Isosorbide Dinitrate 40 mg (Tillotts) | |
Isodil (Tunisia) | |
Isodinit (Bulgaria, Georgia, Latvia, Lithuania, Romania) | |
Isodinit 10mg (Bulgaria) | |
Isodinit 20mg (Bulgaria) | |
Isodinit R (Georgia) | |
Isodinit retard (Romania) | |
Isodinitrat 20 | |
Isodinitrat 40 | |
IsoDitrate | |
Isodonit (Latvia) | |
Isoflurane Nicholas Piramal (Bulgaria) | |
Isoforce (Germany) | |
Isohart (Bahrain, Iraq, Libya, Qatar, Saudi Arabia, Sudan, United Arab Emirates, Yemen) | |
Isoket (Argentina, Austria, Bulgaria, China, Estonia, Georgia, Germany, Hong Kong, Indonesia, Ireland, Israel, Latvia, Lithuania, Luxembourg, Malaysia, Oman, Peru, Philippines, Poland, Portugal, Russian Federation, Singapore, Slovakia, South Africa, Sri Lanka, Switzerland, Taiwan, Thailand, United Kingdom, Venezuela) | |
Injectable; Injection; Isosorbide Dinitrate 0.05% (GlaxoSmithKline) | |
Injectable; Injection; Isosorbide Dinitrate 0.1% (GlaxoSmithKline) | |
Injectable; Injection; Isosorbide Dinitrate 1% (GlaxoSmithKline) | |
Ointment; Topical; Isosorbide Dinitrate 10% (GlaxoSmithKline) | |
Spray; Oral; Isosorbide Dinitrate 1.25 mg / dose (GlaxoSmithKline) | |
See 752 substitutes for Isobar |
References
- DailyMed. "METHYCLOTHIAZIDE: DailyMed provides trustworthy information about marketed drugs in the United States. DailyMed is the official provider of FDA label information (package inserts).". https://dailymed.nlm.nih.gov/dailyme... (accessed September 17, 2018).
- DailyMed. "ISOSORBIDE DINITRATE: DailyMed provides trustworthy information about marketed drugs in the United States. DailyMed is the official provider of FDA label information (package inserts).". https://dailymed.nlm.nih.gov/dailyme... (accessed September 17, 2018).
- DailyMed. "HYDROCHLOROTHIAZIDE; TRIAMTERENE: DailyMed provides trustworthy information about marketed drugs in the United States. DailyMed is the official provider of FDA label information (package inserts).". https://dailymed.nlm.nih.gov/dailyme... (accessed September 17, 2018).
Reviews
The results of a survey conducted on ndrugs.com for Isobar are given in detail below. The results of the survey conducted are based on the impressions and views of the website users and consumers taking Isobar. We implore you to kindly base your medical condition or therapeutic choices on the result or test conducted by a physician or licensed medical practitioners.User reports
2 consumers reported useful
Was the Isobar drug useful in terms of decreasing the symptom or the disease?According to the reports released by ndrugs.com website users, the below mentioned percentages of users say the drug is useful / not useful to them in decreasing their symptoms/disease. The usefulness of the drug depends on many factors, like severity of the disease, perception of symptom, or disease by the patient, brand name used [matters only to a certain extent], other associated conditions of the patient. If the drug is not effective or useful in your case, you need to meet the doctor to get re-evaluated about your symptoms/disease, and he will prescribe an alternative drug.
Users | % | ||
---|---|---|---|
Not useful | 1 | 50.0% | |
Useful | 1 | 50.0% |
Consumer reported price estimates
No survey data has been collected yetConsumer reported time for results
No survey data has been collected yet5 consumers reported age
Users | % | ||
---|---|---|---|
30-45 | 2 | 40.0% | |
> 60 | 1 | 20.0% | |
46-60 | 1 | 20.0% | |
16-29 | 1 | 20.0% |
Consumer reviews
There are no reviews yet. Be the first to write one! |
Information checked by Dr. Sachin Kumar, MD Pharmacology