Why are cimetidine and ranitidine better antacids than sodium hydrogencarbonate or magnesium or aluminium hydroxide?

(N/A) Antacids such as $NaHCO_3$,$Mg(OH)_2$,and $Al(OH)_3$ work by neutralising the excess hydrochloric acid present in the stomach.
However,these do not address the root cause of acid production.
Cimetidine and ranitidine are better antacids because they act as histamine receptor antagonists.
They prevent the interaction of histamine with the receptors present in the stomach walls,which signals the release of acid.
Consequently,they reduce the amount of acid produced,making them more effective than simple neutralising agents.