Amlodipine besylate 2.5 is the chemical name for a medication that is prescribed for angina and hypertension. Amlodipine is sold under the brand name Norvasc and is in a family of prescription drugs called long-acting calcium channel blockers. These medicines work by enlarging blood vessels to increase the flow of oxygen-rich blood, explains Drugs.com. Like all medications, adverse side effects may occur and should be reported to a physician.
Cardiovascular Effects
Amlodipine can cause side effects that involve the cardiovascular system, or heart and blood vessel system. These effects are rare and should be reported to the physician. They include arrhythmia, or abnormal heart rhythm, bradycardia, or slowed heart rate, hypotension, or low blood pressure, and dizziness.
Gastrointestinal Effects
According to RxList.com, side effects of amlodipine also include gastrointestinal, or stomach and intestinal, symptoms. These include dyspepsia, or heart burn, difficulty swallowing, vomiting, pancreatitis, gassiness, constipation and diarrhea. These side effects can cause loss of appetite and lead to weight loss and anorexia.
Psychiatric Effects
Psychiatric side effects due to amlodipine are uncommon according to RxList.com. These effects include sexual dysfunction in both men and women, depression, nervousness, anxiety and insomnia.
Dermatology Effects
Amlodipine medication may also have skin side effects in some individuals. Dermatology effects include erythema, or skin redness, itching, swelling and rashes. In most cases, these side effects subside on their own.
General Effects
Other rare side effects of amlodipine affect the whole body. Drugs.com lists general effects to include an allergic reaction, hot flashes, weight gain or loss, back pain, fatigue and malaise.



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