- Allen HC — The keynotes that separate this remedy from its nearest neighbours.
“Zinc. (The Element.) Persons suffering from cerebral and nervous exhaustion; defective vitality ; brain or nerve power wanting ; too weak to develop exanthemata or menstrual function, to expectorate, to urinate; to comprehend, to memorize. Incessant and violent fidgety feeling in feet or lower extremeties; must move…”
- Allen TF — A compiled symptom record drawing on proving reports and other named observations.
“An element. Preparation , Triturations of the metal. Authorities. (No. 1 to 12 , from Hahnemann, Chr. Kn.)”
- Boericke — The quick clinical read — keynotes, modalities and the conditions it is actually prescribed in.
“Zinc (ZINC) The provings picture cerebral depression. The word "fag" covers a large part of zinc action. Tissues are worn out faster than they are repaired. Poisoning from suppressed eruptions or discharges. The nervous symptoms of most importance. Defective vitality. Impending brain paralysis. Period of depression in…”
- Boger (GA) — Which general headings this remedy belongs under — the analytical scaffolding.
“ALTERNATING EFFECTS, sides, states, etc.(Comp. Periodicity, Wandering, Waves). BALL. BLOOD SEPSIS, etc. BLOOD VESSELS. BLOWS, shocks, thrusts, crash, explosions, etc. (Comp. Shattered): BORING, grinding, etc. CARPHOLOGY, nervous picking, etc. CHANGE of position, Amel. CHILLED, cold becoming, while hot, by ices…”
- Boger (Syn) — Generals and modalities in a short analytical portrait rather than a symptom list.
“BRAIN AND NERVES: Occiput. Spine. Orbital region. Root of nose. Blood. Inner canthi. EXHAUSTION; mental. Suppressions. Noise. Touch. Wine. After being heated. Motion. Hard pressure. Warm open air. FREE DISCHARGES. Fagged , enervated or depressed; can't throw things off; develop exanthema or discharges, etc. Increasing…”
- Clarke — The widest entry — sources, provings, clinical uses, relationships and antidotes in one place.
“metallicum. Zinc. An Element. Zn. A. W. 64.9. Trituration of the metal. Alcoholism / Amblyopia / Asthma / Brain-fag / Brain, paralysis of / Breasts, affections of / Cataract / Chilblains / Chin, eruption on / Chlorosis / Cholera / Chorea / Constipation / Cracks / Dentition / Diarrhœa, nervous; with stupor / Diphtheria…”
- Farrington — The differential diagnosis — remedy families narrowed through direct clinical comparison.
“Zinc: Nervous depression; Undeveloped diseases from enervation; Brain—Hemispheres, Sensorium, Pons, medulla; Spine; Anaemia; Organs; Skin. Zinc: Belladonna, Cuprum, Stramonium; Hyoscyamus; Calcarea ostrearum; Camphor; Plumbum; > Ign.; Hep. Zincum metallicum is the zinc preparation we most frequently use. You will…”
- Guernsey — The leading characteristics — a compact bridge from repertory result to remedy study.
“Affections in general appearing in the left inguinal ring; left side of the back; upper jaw, and troubles of the teeth in the lower jaw; loins; posterior surface of the thigh; tendo Achillis; big toe; joints of the toes. Sexual.--Female: Complaints coming on while the menses are absent, but feels perfectly well during…”
- Hahnemann (CD) — The antipsoric proving record — Hahnemann's later materia medica in its chronic-disease setting.
“ZINC. Rub a piece of pure metallic zinc on a whetstone under distilled water, in a clean porcelain bowl ; the gray powder deposited on the bottom is dried on white blotting paper, and one grain of it is used to prepare the dynamized preparations of zinc, in the same manner as with other dry drugs, in the manner…”
- Hering — Graded symptoms, each weighted by how often provers and practice confirmed it.
“Zinc. The element. Introduced by Franz. Provings by Hahnemann, Franz, von Gersdorff, Hartlaub, Hartmann, Haubold, Lesquereux, Nenning, Rückert, Rummell, Schweikert, Stapf, Chronische, Krankheiten, vol. 5, p. 428 ; Franz, Archiv für Hom., 6, 2, p. 188 ; Schreter, Neues Archiv für Hom., vol. 3, p. 187 ; Wernek, Hygea…”
- Kent — The mental and general picture — how Kent organizes the remedy’s historical symptom portrait.
“Zinc. has a full and substantial proving, including symptoms of every part of the body. It is an antipsoric, suitable in broken down constitutions, feeble constitutions; enfeeblement characterizes the whole proving. The Zinc. patient is nervous and extremely sensitive, excitable, trembling, quivering, twitching of…”
- Lippe (MM) — The strict Hahnemannian reading — the symptom picture without clinical interpretation.
“Very variable mood: at noon, low-spirited; and in the evening, hilarity, or vice versa. Morose and indisposed to converse (especially in the evening). Great sensitiveness to the talking of others and to all noise. Aversion to work and to walk. Weakness of the memory. Thoughtlessness and dulness of the intellect…”
- Lippe (Red) — Keynotes with the most-trusted ones marked as red-line symptoms.
“Common name: zinc. Pallor of the body surface, with low fevers (Ferr., Nat-M., Sep.). Nape of the neck feels weary and tired, from writing or any exertion (N.). Variableness of the symptoms (Ign., Kali-S., Tub.). Pain in the back, worse when sitting (Agar., Arg-M., Rhus-T., Sep., Valer., Zinc.) (N.). DEFECTIVE…”
- Nash — The comparisons — the remedy set beside the ones it is most often confused with.
“Inability to develop or hold out the rash in eruptive diseases, can’t expectorate or menstruate, is > if can. Cannot take stimulants, as they aggravate in general. Fidgety feet, must move them constantly. Twitching of single muscles all over the body. Violent trembling all over, so as to shake the bed; lost nerve…”