Hi, thanks for your query. I understand your concern for your mother. In addition to diabetes, hypertension, heart disease now she has developed foot cramps. Cramps can occur due to: -overuse of a muscle,muscle strain or injury -dehydration, depletion of minerals such as magnesium, potassium and calcium -or simply holding a position for a prolonged period of time, as probably in her case after toe surgery. -medications I suggest you to consult your physician to find out the exact cause of cramps and appropriate treatment rather than discontinuing any medicines, whose beneficial effects out weigh the side effects. Also confirm with the doctor regarding the dose of telma. Hope this helps you.