Calan SR (verapamil) Coupons, Discounts & Cost
Calan SR (verapamil) is a calcium channel blocker. One way to save money on the Calan SR (verapamil) retail cost regardless of income and insurance status is to use Calan SR (verapamil) coupons or discount cards from RXCoupons. Use this Calan SR (verapamil) coupon at this online pharmacy and receive up to 75% off the sale price.
Calan SR pharmacologic effect
Calan SR (verapamil) is a calcium channel blocker. Verapamil has antianginal, hypotensive, anti-arrhythmic action. The drug reduces contractility, relaxes smooth muscles, improves myocardial perfusion and lowers blood pressure. It also improves the flow of blood from the ventricles in patients with uncomplicated hypertrophic cardiomyopathy. It reduces the frequency and severity of headaches of vascular origin.
Calan SR (verapamil) indications
Calan SR (verapamil) is used in case of paroxysmal supraventricular tachycardia (except for Wolff–Parkinson–White syndrome), sinus tachycardia, atrial arrhythmia, fibrillation and atrial flutter, angina pectoris (including Prinzmetal angina, post-infarction angina), hypertension, hypertrophic cardiomyopathy.
How to take Calan SR (verapamil)
This medication is taken during or immediately after a meal. Tablets are swallowed whole. Do not dissolve, chew or crush them. Calan SR tablets should be taken with a full glass of water. The drug is administered in the following doses: Angina: 80-120 mg 3 times a day, elderly patients - 40 mg 3 times a day. Arrhythmia: patients with chronic atrial fibrillation during therapy with cardiac glycosides - 240-320 mg daily in 2-3 divided doses.
Prevention of paroxysmal supraventricular tachycardia: 240-480 mg daily in 2-3 divided doses. Hypertension: 80 mg 3 times a day. If necessary, the daily dose can be increased to 360 mg. Elderly patients or those with low body weight should take 40 mg 3 times a day. Children up to 6 years: 40-60 mg of verapamil per day; 6-14 years - 80-360 mg per day. The drug is taken in 3-4 divided doses.
Calan SR (verapamil) special instructions
Use caution when taking Calan SR (verapamil) in patients with sinoatrial exit block, bradycardia, heart failure, liver or kidney failure, impaired neuromuscular transmission. Calan SR is used with extreme caution in the elderly and in children under the age of 18 years (there are no adequate clinical data on the efficacy and safety of verapamil).
During Calan SR treatment, try to avoid potentially hazardous activities that require high reaction speed and concentration.
Do not drink alcohol during the period of treatment.
Side effects of Calan SR (verapamil)
Calan SR (verapamil) may cause hypotension, sinus bradycardia, atrioventricular block, heart failure, headache, dizziness, nervousness, drowsiness, weakness, fatigue, paresthesia, nausea, dyspepsia, constipation, rarely - gingival hyperplasia.
Allergic reactions: skin rash, hives, itchy skin, rare - angioedema, alopecia, pigmentation disorders, Stevens-Johnson syndrome, facial flushing, peripheral edema, very rarely - gynecomastia. Other reactions: fever, hypersensitivity, allergic hepatitis, blurred vision, muscle weakness, myalgia, arthralgia, erythema multiforme, purpura, hyperkalemia, impaired glucose tolerance.
When to avoid Calan SR (verapamil)
Calan SR (verapamil) contraindications: hypersensitivity, severe left ventricular dysfunction, hypotension or cardiogenic shock, sick sinus syndrome (except in patients using pacemakers), atrial flutter and atrial fibrillation, Wolff–Parkinson–White syndrome, Lown–Ganong–Levine syndrome (except for patients using pacemakers), pregnancy, lactation.
Calan SR (verapamil) overdose
Symptoms: hypotension, bradycardia, AV block, cardiogenic shock, coma.
Calan SR (verapamil) interaction with other drugs
Calan SR (verapamil) may increase plasma levels of digoxin, cyclosporine, theophylline, carbamazepine. It weakens the antibacterial activity of phenobarbital.
Verapamil enhances the effect of muscle relaxants.
Rifampicin, sulfinpyrazone, phenobarbital, calcium and vitamin D may weaken the effect of verapamil.
Verapamil should be used with caution with antihypertensive drugs (diuretics, vasodilators), tricyclic and tetracyclic antidepressants, neuroleptics, beta-blockers, cardiac glycosides, inhalation anesthetics, contrast agents used in radiology.