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- Radium bromatum
- Ranunculus bulbosus
- Ranunculus sceleratus
- Raphanus sativus
- Ratanhia peruvianaKrameria lappacea
- Rhamnus californicaFrangula californica
- Rheum palmatum
- Rhodium metallicum
- Rhododendron ferrugineum
- Rhus aromatica
- Rhus glabra
- Rhus toxicodendronToxicodendron pubescens
- Rhus venenata
- Ricinus communis
- Robinia pseudacaciaRobinia pseudoacacia
- Rosa damascena
- Rumex crispus
- Ruta graveolens
Rosa damascena
3-644.61.10Useful in the beginning of hay-fever, with involvement of Eustachian tube.
Ear: Hardness of hearing; tinnitus. Eustachian catarrh (Hydr; Merc dulc).
Ear: Hardness of hearing; tinnitus. Eustachian catarrh (Hydr; Merc dulc).