amlodipine, Norvasc (cont.)

Pharmacy Author:
Medical and Pharmacy Editor:

SIDE EFFECTS: Side effects of amlodipine are generally mild and reversible. The two most common side effects are:

Less common side effects include:

In patients with severe coronary artery disease, amlodipine can increase the frequency and severity of angina or actually cause a heart attack on rare occasions. This phenomenon usually occurs when first starting amlodipine, or at the time of an increase in dosage. Excessive lowering of blood pressure during initiation of amlodipine treatment can occur, especially in patients already taking other medications that lower blood pressure. In rare instances, congestive heart failure has been associated with amlodipine, usually in patients already taking a beta blocker.

PRESCRIPTION: Yes

GENERIC AVAILABLE: Yes

PREPARATIONS: Tablets: 2.5, 5, and 10 mg

STORAGE: Amlodipine should be stored at room temperature in a tight, light resistant container.

DOSING: The recommended starting dose of amlodipine for children and adults is 2.5 to 5 mg once daily. The maximum dose for adults is 10 mg once daily and the maximum dose for children is 5 mg once daily. Amlodipine can be taken with or without food. Amlodipine is inactivated mainly by the liver, and dosages may need to be lowered in patients with liver dysfunction.

DRUG INTERACTIONS: Combining amlodipine with sildenafil (Viagra) and similar drugs used for treating erectile dysfunction may lead to excessive reductions in blood pressure with complications, particularly fainting upon standing (orthostatic hypotension).

Medically Reviewed by a Doctor on 12/10/2014


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