Below are the main rubriks (i.e strongest indications or symptoms) of Causticum in traditional homeopathic usage, not approved by the FDA.
Drowsiness in the day, like coma.
Nocturnal sleeplessness, caused by anxiety, inquietude, dry heat, and other annoyances, with frequent starts.
Starts on going to sleep.
Frequent movements of the arms and legs during sleep.
Anxious dreams, about grievous things, or about quarrels, or confused and voluptuous, with talking and laughter.
At night, vertigo, headache, dryness of the mouth, and painful heaviness of the legs.
Epileptic convulsions (at night during sleep).
Arthritic and rheumatic drawing and tearing pains, esp. in the limbs.
Acute and violent pulling in the joints and the bones, mitigated by the heat of a bed.
Contraction of the tendons, and stiffness in the flexor muscles of the limbs.
Cramp-like contraction of several limbs.
Torpor and paleness of some parts, or of the entire l. side of the body.
Jerkings and convulsive movements.
St. Vitus' dance.
Aggravation of the symptoms, generally in the evening, or in the open air, while those which have appeared in the open air disappear in a room.
Coffee seems also to aggravate all the symptoms.
Insupportable uneasiness in the whole body in the evening, and when seated, with anxiety in the region of the heart.
In the evening, great dejection and oppression of the whole body.
Paralytic weakness, with trembling and tottering of the limbs.
Great sensibility to currents of air, and to cold.≡ more ...