The S- isomer of amlodipine or Asomex® is being studied in clinical trials and may lead to side effects such as fatigue or tiredness, dizziness or fainting, headache, flushing, or swelling of the legs or ankles. Side
effects of
amlodipine are generally mild and reversible. If the foot tingling and muscle twitching persists, it is best that you have this evaluated further by a neuroloigst to rule out possible neurological causes.