It mostly a problem with glicazide and inslin, but as kidney function tends to decline with age, other risks increases for many drugs. (Also a issue with liver function as the liver breaks down lots of drugs.)Does this low blood sugar risk in the elderly apply only to those taking glicazide or is it a general thing?
Also remember that few drugs are trailed in old people and clinical trials often exclude people taking other drugs, hence the "unknown unknown" is often greater for new drugs in old people.