| Source |
Potency Type |
Remedies Starting with the Letter O |
| OTH | C | | OCIMUM CANUM [ BASIL, HOARY ] |
| OTH | C | LM | OCIMUM SANCTUM [ BASIL, HOLY; MONK'S BASIL ] |
| HL | C | LM | OENANTHE CROCATA |
| OTH | C | | OKOUBAKA AUBR |
| OTH | C | LM | OLEA EUROPAEA (SYRIAN) [ OLIVE, SYRIAN ] |
| HL | C | LM | OLEANDER |
| OTH | C | LM | OLEUM ANIMALE [ OIL, ANIMAL ] |
| HL | C | | OLEUM CHAULMOOGRA [ OIL OF CHAULMOOGRA ] |
| HL | C | LM | OLEUM JECORIS ASELLI [ COD LIVER OIL OR OLEUM MORRH. ] |
| OTH | C | | OLEUM SANTALI [ OIL, SANDALWOOD ] |
| OTH | C | | OLEUM SUCCINI [ OIL, AMBER ] |
| OTH | C | | OLIVE RHODES [ OLIVE ] |
| HL | C | LM | ONCORRHYNCHUS T. [ SALMON, BLOOD,SPERM,EGG ] |
| OTH | C | | ONISCUS ASELLUS [ SOWBUG ] |
| HL | C | LM | ONOSMODIUM VIRGINIANUM [ FALSE GROMWELL ] |
| OTH | C | | ONYCHOTHEUTIS BAN. [ SQUID ] |
| HL | C | LM | OPUNTIA VULGARIS [ PRICKLY PEAR ] |
| OTH | C | | ORANGE (COLOR) [ COLOR ] |
| HL | C | LM | ORGANIC PEANUT [ PEANUT, ORGANIC ] |
| HL | C | LM | ORIGANUM MAJORANA [ MARJORAM, SWEET ] |
| OTH | C | LM | ORNITHOGALUM UMBELLATUM [ STAR OF BETHLEHEM ] |
| HL | C | LM | OSMIUM |
| OTH | C | | OVA TOSTA [ EGG SHELL, ROASTED ] |
| HL | C | LM | OVI GALLINA PELLICULA [ EGG MEMBRANE, DOMESTIC CHICKEN ] |
| HL | C | LM | OVUM CHELYDRA SERPENTINA [ TURTLE, SNAPPING, EGG ] |
| HL | C | LM | OXALICUM ACIDUM [ OXALIC ACID ] |
| OTH | C | | OXALIS ACETOSELLA |
| OTH | C | LM | OXYGENIUM [ OXYGEN ] |
| OTH | C | LM | OZONE |