A typical medical emergency would be, for example, if a chemical has been accidentally swallowed or splashed into eyes. In the case of an emergency go to your doctor or the local hospital. Make sure you take the bottle of photographic chemical with you to show the doctor the health and safety information on the label. Take the MSDS along as well, if you have one. The doctor can obtain further toxicological details on the product concerned from the poison information centre of your country.
Most countries now have such a national poison center, eg.
It is not used for any other purpose.