Below are the main rubriks (i.e strongest indications or symptoms) of Hyoscyamus Niger in traditional homeopathic usage, not approved by the FDA.
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Trembling of the arms and of the hands, esp. in evening, after movement.
Painful numbness and stiffness of hands.
Swelling of hands.
Fists clenched, with retraction of the thumbs (in convulsive fits).
Carphologia (picking of the bed cover or of the face).
Fingers look and feel too thick.
Hands slightly paralysed.
Painful cramps in the (anterior part of the) thighs, and calves of the legs, which contract the legs.
Gangrenous spots and vesicles on the legs.
Stiffness and lassitude in the joint of the knee.
Coldness and swelling of the feet.
Contraction of the toes when walking and ascending.≡ more ...