Thyrotoxic periodic paralysis

Thyrotoxic periodic paralysis is similar to hypokalemic periodic paralysis. It is caused by high levels of thyroid hormones. Attacks of  hypokalemic periodic paralysis causes muscle weakness that can last for hours or days. It usually begins after a patient has been diagnosed with hyperthyroidism.

Thyrotoxic periodic paralysis attacks are caused by low levels of   potassium in the bloodstream even though there is not a decrease in total body potassium. Normal muscle functions requires a certain amount of potassium in the blood stream. When this becomes low muscles paralysis or weakness occurs.