Below are the various MM, subjects of which, start with the alphabet "O".

Ocimum-sanctum (Oci-s) Oenanthe-crocata (Oena) Oleum-jecoris aselli (Ol-j) Oleander (Olnd) Ononis-spinosa (Onon) Oophorinum (Ooph) Opium (Op) Orchitinum (Orch) Ornithogalum-umbellatum (Orni) Osmium-metallicum (Osm) Oxalicum-acidum (Ox-ac)

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O |

P | Q | R | S | T | U | V | W | X | Y | Z |