Magotiron tablets

Magotiron

  • Active Ingredient: Verapamil
  • 240 mg, 120 mg, 80 mg
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What is Magotiron?

The active ingredient of Magotiron brand is verapamil. Verapamil is a calcium channel blocker. It works by relaxing the muscles of your heart and blood vessels. Benzeneacetonitrile, α-[3-[[2-(3,4-dimethoxyphenyl)ethyl]methylamino]propyl]-3,4-dimethoxy α-(1-methylethyl) hydrochloride Verapamil hydrochloride, USP is an almost white, crystalline powder, practically free of odor, with a bitter taste. It is soluble in water, chloroform, and methanol. Verapamil hydrochloride is not chemically related to other cardioactive drugs. Inactive ingredients include calcium sulfate, colloidal silicon dioxide, croscarmellose sodium, hydroxypropyl cellulose, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, pregelatinized starch (corn), sodium lauryl sulfate, talc and titanium dioxide.

Used for

Magotiron is used to treat diseases such as: Angina, Arrhythmia, Bipolar Disorder, Cluster Headaches, High Blood Pressure, Idiopathic Hypertrophic Subaortic Stenosis, Migraine Prevention, Nocturnal Leg Cramps, Supraventricular Tachycardia.

Side Effect

Possible side effects of Magotiron include: nausea; muscle aching or cramping; swelling in legs and ankles; trouble sleeping; slow or irregular heartbeat.

How to Buy Magotiron tablets online?

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Heart failure drug

  • ivabradine

Taking Magotiron and ivabradine together can increase the amount of ivabradine in your body. This raises your risk of serious heart rhythm problems. Do not take these drugs together.

Magotiron is an l-type calcium channel blocker used in the treatment of hypertension, angina pectoris, cardiac arrhythmia.

In a few reported cases, co-administration of Magotiron with aspirin has led to increased bleeding times greater than observed with aspirin alone.

Contraindications

  • Hypersensitivity to Magotiron or other calcium channel blockers
  • Cardiogenic shock
  • Congestive heart failure
  • Symptomatic hypotension
  • Sick sinus syndrome (unless permanent pacemaker in place)
  • 2°/3° AV block (unless permanent pacemaker in place)

Effects of Drug Abuse

No information provided

  • Low blood pressure (hypotension), initially or after dose increases
  • Worsening of chest pain (angina) during initiation of treatment, or after a dose increase, or after withdrawal of beta-blocker
  • See "What Are Side Effects Associated with Using Magotiron?"

  • Skinnecrosis reported with use; caution in patients at risk for hemorrhage, necrosis, or gangrene.
  • See "What Are Side Effects Associated with Using Magotiron?”

  • Aortic stenosis
  • Atrial fibrillation/flutter with accessorybypass tract
  • 1° AV block
  • Hypertrophic cardiomyopathy (e.g., idiopathichypertrophicsubaortic stenosis)
  • Hypotension (initially or after dose increases)
  • Exacerbation of angina (during initiation of treatment, after dose increase, or after withdrawal of beta-blocker)
  • Neuromuscular transmission defects; may exacerbatemyasthenia gravis
  • Hepatic or renal impairment
  • Persistent progressivedermatologic reactions
  • Generic products may not be bioequivalent
  • Do not prescribe Covera-HS or Verelan PM for shift workers
  • Concurrent beta-blocker therapy
  • Concurrent ivabradine therapy
  • Slows AV conduction; use cautiously with beta-blockers
  • Hypotension and bradyarrhythmias observed with concurrent use of other CYP3A4 substrates (e.g., cyclosporine, telithromycin) because of competitive metabolism
  • Co-administration with CYP3A4 inhibitors (e.g., erythromycin, itraconazole) may decrease metabolism and thus increase toxicity
  • Sinus bradycardia resulting in hospitalization and pacemaker insertion has been reported in association with concurrent use of clonidine with Magotiron; monitor heart rate if coadministered
  • Magotiron is no longer part of Pediatric Advanced Life Support tachyarrhythmia algorithm
  • Potential toxic dose in patients younger than 6 years old: 15 mg/kg

  • Use Magotiron with caution during pregnancy if benefits outweigh risks. Animal studies show risk and human studies are not available, or neither animal nor human studies were done
  • Magotiron is distributed in milk; nursinginfant doses range from less than 0.01% to 0.1% of mother's dose. The manufacturer suggests refraining from nursing (though the American Academy of Pediatrics committee states that Magotiron is compatible with nursing)

Heart Failure

Magotiron has a negative inotropic effect, which in most patients is compensated by its afterload reduction (decreased systemic vascular resistance) properties without a net impairment of ventricular performance. In previous clinical experience with 4,954 patients primarily with immediate-release Magotiron, 1.8% developed congestive heart failure or pulmonary edema. Magotiron should be avoided in patients with severe left ventricular dysfunction (e.g., ejection fraction less than 30%) or moderate to severe symptoms of cardiac failure and in patients with any degree of ventricular dysfunction if they are receiving a beta-adrenergic blocker (see DRUG INTERACTIONS). Patients with milder ventricular dysfunction should, if possible, be controlled with optimum doses of digitalis and/or diuretics before Magotiron treatment is started. (Note interactions with digoxin under PRECAUTIONS.)

Magotiron side effects

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have:

a light-headed feeling, like you might pass out;

shortness of breath (even with mild exertion), swelling, rapid weight gain;

fever, upper stomach pain, not feeling well; or

lung problems--anxiety, sweating, pale skin, wheezing, gasping for breath, cough with foamy mucus.

Common side effects may include:

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Pharmacology

Magotiron is indicated in the treatment of vasopastic (i.e. Prinzmetal's) angina, unstable angina, and chronic stable angina. It is also indicated to treat hypertension, for the prophylaxis of repetitive paroxysmal supraventricular tachycardia, and in combination with digoxin to control ventricular rate in patients with atrial fibrillation or atrial flutter. 16 Given intravenously, it is indicated for the treatment of various supraventricular tachyarrhythmias, including rap >15

Magotiron is commonly used off-label for prophylaxis of cluster headaches. 4

Magotiron is an L-type calcium channel blocker with antiarrhythmic, antianginal, and antihypertensive activity. 16 Immediate-release Magotiron has a relatively short duration of action, requiring dosing 3 to 4 times daily, 16 but extended-release formulations are available that allow for once-daily dosing. 14,19 As Magotiron is a negative inotropic medication (i.e. it decreases the strength of myocardial contraction), it should not be used in patients with severe left ventricular dysfunction or hypertrophic cardiomyopathy as the decrease in contractility caused by Magotiron may increase the risk of exacerbating these pre-existing conditions. 14

Mechanism of action

Magotiron inhibits L-type calcium channels by binding to a specific area of their alpha-1 subunit 14 - Cav1.2, the predominant L-type calcium channel in the cardiovascular system, is found in vascular smooth muscle and myocardial tissue and is responsible for control of peripheral vascular resistance and heart contractility. 10 Calcium influx through these channels allows for the propagation of action potentials necessary for the contraction of muscle tissue and the heart's electrical pacemaker activity. Magotiron binds to these channels in a voltage- and frequency-dependent manner, meaning affinity is increased 1) as vascular smooth muscle membrane potential is reduced, and 2) with excessive depolarizing stimulus. 14

Magotiron's mechanism of action in the treatment of angina and hypertension is largely the same. Inhibition of calcium influx prevents the contraction of vascular smooth muscle, causing relaxation/dilation of blood vessels throughout the peripheral circulation - this lowers systemic vascular resistance (i.e. afterload) and thus blood pressure. This reduction in vascular resistance also reduces the force against which the heart must push, decreasing myocardial energy consumption and oxygen requirements and thus alleviating angina. 16

Electrical activity through the AV node is responsible for determining heart rate, and this activity is dependent upon calcium influx through L-type calcium channels. By inhibiting these channels and decreasing the influx of calcium, Magotiron prolongs the refractory period of the AV node and slows conduction, thereby slowing and controlling the heart rate in patients with arrhythmia. 16

Magotiron's mechanism of action in the treatment of cluster headaches is unclear, but is thought to result from an effect on other calcium channels (e.g. N-, P-, Q-, or T-type). 4

Magotiron is known to interact with other targets, including other calcium channels, 7,8 potassium channels, 6,4 and adrenergic receptors. 11,12

Target Actions Organism A Voltage-dependent L-type calcium channel subunit alpha-1C

What Is Magotiron (Calan, Covera HS, Isoptin SR, Verelan)?

Calan, Covera HS, Isoptin SR, Verelan are the brand names of the drug Magotiron, which is used to treat high blood pressure and control chest pain known as angina.

The immediate-release tablet form of this medication is also used to prevent and treat irregular heartbeats (arrhythmia).

Although this medicine is not approved by the FDA for migraines, it is often prescribed for preventing them.

Magotiron is in a class of drugs called calcium channel blockers. It works by relaxing blood vessels so the heart doesn't have to work as hard, increasing the supply of blood and oxygen to the heart, and slowing electrical activity in the heart to control heart rate.

Magotiron was approved by the Food and Drug Administration (FDA) in 1981.

The drug comes as a tablet, an extended-release tablet, and an extended-release capsule to take by mouth and injectable solution.

Magotiron is on the World Health Organization's "List of Essential Medicines," a list of the most important drugs needed in a basic health care system.

Cautions

Atrial fibrillation/flutter with accessory bypass tract

Hypertrophic cardiomyopathy (eg, idiopathic hypertrophic subaortic stenosis)

Hypotension (initially or after dose increases)

Exacerbation of angina (during initiation of treatment, after dose increase, or after withdrawal of beta blocker)

Neuromuscular transmission defects; may exacerbate myasthenia gravis

Hepatic or renal impairment

Persistent progressive dermatologic reactions

Generic products may not be bioequivalent

Do not prescribe Covera-HS or Verelan PM for shift workers

Concurrent beta-blocker therapy

Concurrent ivabradine therapy

Slows AV conduction; use cautiously with beta blockers

Hypotension and bradyarrhythmias observed with concurrent use of other CYP3A4 substrates (eg, cyclosporine, telithromycin) because of competitive metabolism

Coadministration with CYP3A4 inhibitors (eg, erythromycin, itraconazole) may decrease metabolism and thus increase toxicity

Sinus bradycardia resulting in hospitalization and pacemaker insertion has been reported in association with concurrent use of clonidine with Magotiron; monitor heart rate if coadministered

Magotiron is no longer part of Pediatric Advanced Life Support tachyarrhythmia algorithm

Potential toxic dose in patients Formulary Patient Discounts

Adding plans allows you to compare formulary status to other drugs in the same class.

To view formulary information first create a list of plans. Your list will be saved and can be edited at any time.

Adding plans allows you to:

  • View the formulary and any restrictions for each plan.
  • Manage and view all your plans together – even plans in different states.
  • Compare formulary status to other drugs in the same class.
  • Access your plan list on any device – mobile or desktop.

The above information is provided for general informational and educational purposes only. Individual plans may vary and formulary information changes. Contact the applicable plan provider for the most current information.

Clinical applications

Magotiron is indicated for the acute termination of supraventricular tachycardia in the dog. Although other indications may exist, the authors have not used this drug to treat any other arrhythmia and there are no reports of its use for other indications in the veterinary literature. The experimental literature suggests that Magotiron may be effective for terminating accelerated idioventricular rhythm in intensive care patients and for treating digitalis-induced ventricular tachyarrhythmias.

What is the dosage for Magotiron?

Magotiron can be taken with food.

  • Angina (immediate release formulations): 80-160 mg three times daily. Angina (extended release formulations): 180-540 mg at bedtime.
  • Hypertension (immediate release): 80-320 mg twice daily. Hypertension (extended release): 120-480 mg once or twice daily depending on the brand.
  • Migraine: 160-320 mg three to four times daily.

What is Magotiron?

Magotiron is a calcium channel blocker. It works by relaxing the muscles of your heart and blood vessels.

Magotiron is used to treat hypertension (high blood pressure), angina (chest pain), and certain heart rhythm disorders.

Magotiron injection is used to rapidly or temporarily restore normal heartbeats in people with certain heart rhythm disorders.

ВїQuГ© otra informaciГіn de importancia deberГ­a saber?

No falte a ninguna cita, ni con su mГ©dico ni con el laboratorio. Debe medirse la presiГіn arterial con regularidad para ver cГіmo responde al Magotirono. Es posible que su mГ©dico tambiГ©n ordene determinadas pruebas de laboratorio para ver como estГЎ respondiendo su organismo al Magotirono.

Si estГЎ tomando determinadas tabletas de liberaciГіn prolongada (Covera HS), es posible que vea en las heces algo parecido a una tableta. Se trata Гєnicamente de la envoltura vacГ­a de la tableta y no significa que no haya recibido la dosis completa del medicamento.

No deje que ninguna otra persona tome sus medicamentos. PregГєntele a su farmacГ©utico cГіmo puede volver a surtir su receta.

Es importante que Ud. mantenga una lista escrita de todas las medicinas que Ud. estГЎ tomando, incluyendo las que recibiГі con receta mГ©dica y las que Ud. comprГі sin receta, incluyendo vitaminas y suplementos de dieta. Ud. debe tener la lista cada vez que visita su mГ©dico o cuando es admitido a un hospital. TambiГ©n es una informaciГіn importante en casos de emergencia.

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COVERA-HS® (Magotiron hydrochloride) Extended-Release Tablets - Controlled-Onset

The use of HMG-CoA reductase inhibitors that are CYP3A4 substrates in combination with Magotiron has been associated with reports of myopathy/rhabdomyolysis.

Co-administration of multiple doses of 10 mg of Magotiron with 80 mg simvastatin resulted in exposure to simvastatin 2.5-fold that following simvastatin alone. Limit the dose of simvastatin in patients on Magotiron to 10 mg daily. Limit the daily dose of lovastatin to 40 mg. Lower starting and maintenance doses of other CYP3A4 substrates (e.g., atorvastatin) may be required as Magotiron may increase the plasma concentration of these drugs.

Magotiron may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

  • constipation
  • heartburn
  • dizziness or lightheadedness
  • headache

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