Picric acid
Allen, Keynotes and Characteristics with Comparisons of Some of the Leading Remedies of the Materia Medica, 3rd ed., 1910, p. 226
Picric acid. HCqH2(N02)s0.
Keynotes
Is often restorative of a wasted and worn-out system; a fair picture of “nervous prostration” (Kali p.). Progressive, pernicious, anemia; neurasthenia.
Brain fag: of literary or business people; slightest excitement, mental exertion or overwork brings on headache, and causes burning along the spine (Kali p.) .
Headache: of students, teachers and overworked business men; from grief or depressing emotions; in occipital-cervical region (Nat. m., Sil.) ; < or brought on by slightest motion or mental exertion.
Priapism, with spinal disease ; erections violent, long-lasting ; profuse seminal emissions ; satyriasis (Canth., Phos.).
Small boils in any part of body, but especially in external auditory canal.
Burning along spine and great weakness of spine and back; softening of cord (Phos., Zinc.).
Weariness, progressing from a slight feeling of fatigue on motion to complete paralysis.
Tired heavy feeling all over body, especially of limbs, < on exertion.
Relationship p. 227
Compare: Arg. n., Gels., Kali p., Phos. ac., Phos., Petr., Sil. Amelioration. — From. cold air and cold water. Aggravation. — Least mental exertion; motion; study ; wet weather.