Fluid retention (edema) in the face and limbs is a known side effect of amlodipine, one of the active ingredients in Arbitel-AM. Please do not stop taking your medication abruptly, as this can cause your blood pressure to spike dangerously. Instead, consult your doctor promptly. They can safely transition you to an alternative regimen, such as continuing telmisartan alone or combining it with a different class of medication, like a low-dose diuretic, which can control your blood pressure without causing swelling.