1:5, 50% alc.], 1/4 to 1 teaspoon Standard Infusion, 2-6 ounces, 
all to 4X a day. 
Ocotillo see 
Fouquieria
*OPLOPANAX HORRIDUM (Echinopanax, Devil's Club)
ROOT and ROOTBARK. Tincture [Fresh Root 1:2, Dry Rootbark, 1:5,
60% alc.] 10-40 drops. Cold Infusion, 1-3 ounces, all forms to 3X a
day.
Oregon Grape see 
Mahonia
Osha see 
Ligusticum
OSMORHIZA OCCIDENTALIS (Sweet Root, Western Sweet Cicely)
ROOT. Tincture [Fresh Root, 1:2, Dry Root, 1:5, 65% alcohol] 45-60 
drops to 3X a day. Strong Decoction, 2-3 ounces to 3X a day.
*PAEONIA (Peony)
ROOT. Tincture [Fresh Root 1:2, Dry Root, 1:5, 60% alcohol] 10-25 
drops up to 4X a day. Cold Infusion, 1-2 ounces. Capsules, #00, 
2-3 at a time.
Pau D'Arco see 
Tabebuia
*PANAX QUINQUEFOLIUM (American Ginseng)
ROOT. Tincture [1:5, 70% alcohol]. 
WILD ROOTS (morally objectionable), 5-10 drops. 
WOODSGROWN ROOTS. 10-20 drops. 
CULTIVATED ROOTS. 20-40 drops. 
CULTIVATED RED ROOTS (Michigan and Wisc. cured roots), 15-30 
drops. Any other "American Red Ginseng" is a blatant fake. 
LEAVES.30-60 drops, Cold Infusion, 2-4 ounces.All above forms to
3X a day.
PASSIFLORA (Passion Flower)
WHOLE HERB.Tincture [Fresh Plant 1:2, Dry Herb, 1:5, 50% 
alcohol] 1/2 to 1 1/2 teapoon. Fluidextract [1:1, 45% alcohol], 30-
60 drops. Standard Infusion of recent herb, 2-6 ounces, all 
forms to 4X a day.
PEDICULARIS (Betony, Lousewort, Elephant Head, Parrot's 
Beak, Indian Warrior)
HERB in FLOWER.Standard Infusion, 4-8 ounces. Tincture[Fresh 
Plant, 1:2, Dry Plant, 1:5, 50% alcohol] 1-2 teaspoons, all to 3X a 
day.
*PEGANUM HARMALA (Syrian Rue)
SEEDS and ROOT. Tincture [1:5, 60% alcohol] 10-30 drops, to 3X a 
day. 
LEAVES. Standard Infusion for topical use.
*PHYTOLACCA (Poke)
ROOT and BERRIES. Fresh Tincture, (Root or Berries), [1:2], 2-10 
drops. Dry Root Tincture [1:5, 50% alcohol] 5-15 drops. 
USE WITH CARE.
PICRAENA (Picrasma, Quassia)
WOOD. Cold Infus., 2-4 ounces. Tincture [1:5, 50% alcohol] 30-60 
drops, to 3X a day. Cold Infus., 4-8 ounces, as a retained enema, 
once a week for 4-6 weeks for pinworms/threadworms.
Pleurisy Root see 
Asclepias tuberosa