Encyclopedia of Medicinal Plants Uses and Identification
8. Hedera helix
22. Helicteres isora
30. Helleborus niger
34. Helonias bullata
40. Herniaria glabra
51. Hibiscus trionum
67. Holcus lanatus
69. Homogyne alpina
71. Honey locust
72. Hordeum jubatum
73. Hordeum murinum
74. Hordeum vulgare
83. Hura crepitans
96. Hyoscyamus niger
100. Hypericum hirsutum
101. Hypericum humifusum
102. Hypericum mutilum
103. Hypericum olympicum
104. Hypericum perforatum
105. Hypericum pulchrum
106. Hyphaene thebaica
107. Hypochaeris glabra
108. Hypochaeris radicata
109. Hypoxis hirsuta
110. Hyssopus officinalis
- St. John's wort (Hypericum perforatum)
See the main article on this topic: St. John's wort
Used for: calming, bedwetting,
insomnia, "nervous conditions", depression,
anemia, headache, jaundice, congestion, and
herbalists and some medical authorities as an
effective treatment for depression; trials are
mixed, partly due to depression's high
susceptibility to the placebo effect.
Popular in Germany. May interfere with effectiveness of other drugs.
effects: may cause cataracts in
people exposed to visible or ultraviolet light
after taking it.
Other side effects may include gastrointestinal disturbances, allergic reactions, fatigue, dizziness, confusion, dry mouth, photosensitivity , mania and psychosis
Used for: pain, nervousness,
irritability, Parkinson's disease symptoms, and
It is also smoked to "cure" asthma and bronchitis (sounds familiar). There is no evidence to support its use for any of these conditions.
- Harmful effects: Henbane is toxic, and when used for self-treatment may result in fatal poisoning. Side effects may include dry mouth, red skin, constipation, overheating, reduced sweating, vision disturbances, increased heart rate, urination problems, drowsiness, restlessness, hallucinations, delirium, manic episodes, and death. Mostly death.
For a while,
henbane berries were used in the manufacture of
an herbal beer flavoring called "gruit", which
was flavored with various sweet and bitter
herbs, before people began using hops. Gruit
fell out of favor during the Middle Ages when
the Reinheitsgebot declared that all
beers in the Holy Roman Empire could only be
made with barely (Hordeum vulgare), hops
(Humulus lupulus), water, and yeast.
Used for: vaginal douching,
mouthwash, periodontal disease, congestion,
laxative, stomach ailments, skin diseases, and
nausea relief during pregnancy.
Also used for "immune system boosting".
Effectiveness: The evidence doesn't
suggest Goldenseal is effective for any
effects: Small doses may be
fine, except during pregnancy or
breastfeeding, since goldenseal might cause
brain damage to the baby.
"High doses may cause breathing problems, paralysis, and even death. Long-term use may lead to vitamin B deficiency, hallucinations, and delirium." It may also affect blood pressure unpredictably because it contains several different compounds that have opposite effects on blood pressure. It can also make you more sensitive to light. A cancer study of goldenseal root powder in mice and rats showed that it "caused cancer in the liver of male and female rats and male mice. There was no effect of goldenseal root powder on female mice."
Usage: Effective for
Insufficient study has been done to evaluate its effectiveness for anything else.
effects: Side effects may include
diarrhea, nausea, vomiting, abdominal pain,
headaches, ringing in the ears, loss of
appetite, and loss of taste.
Other side effects may include allergic skin reactions, menstrual problems, and changes in blood pressure. Use of devil's claw during pregnancy is not advised, as it may harm the fetus.