Ferrum iodatum

The iodide of iron entered 19th-century practice as a powerful alterative, uniting the hæmatinic action of iron with the glandular (lymphatic/thyroid) action of iodine. Physiologically it quickens circulation, heightens appetite and warmth, and acts on lymphatic glands and mucous membranes; overuse may produce flushing, palpitation, gastric irritation, coryza, acneiform eruptions, and emaciation despite appetite, with enlargement or tenderness of glands and thyroid—features that anticipate the homœopathic picture of anaemic plethora with catarrh and glandular disease. The tincture for homœopathic use is prepared from the iodide salt; our pathogenesis is compiled from provings and extensive clinical observations in scrofulous children, adenoids/tonsils, goitre (including exophthalmic), chronic bronchial catarrh with hæmoptysis of bright blood, fibroid menorrhagia, and emaciating glandular states. [Hughes], [Allen], [Clarke], [Boericke], [Farrington].

No Hahnemannian proving proper. The pathogenesis rests on Allen’s Encyclopædia (provings/poisonings) and on clinical collections by Hughes and Clarke, enriched by Hering’s and Farrington’s confirmations—particularly in scrofulous adenopathy, goitre (simple and exophthalmic), chronic nasal/bronchial catarrh with bright hæmoptysis, thyroidic palpitation/tremor, and uterine fibroid menorrhagia with anaemic flushing. Tags: [Proving] [Clinical] [Toxicology]. [Allen], [Hughes], [Clarke], [Hering], [Farrington], [Boericke].

Ferrum iodatum is the hot, busy, plethoric-anaemic blend of Iron and Iodine. Think of the thin, easily flushed woman with fibroid flooding of bright blood, palpitation on stairs, tight collar intolerance, and catarrhal head and chest: she is restless and hurried, yet soon exhausted; heat of rooms drives her to the window; a nosebleed or freer menstrual flow calms her head and heart. In youths, think of the scrofulous, adenoidal, “school-room hot” type—pale yet flushing, with thick yellow-green discharge, bounding pulse in class, easy epistaxis, and relief the moment they spill into the cool air. The modal law is ironclad: worse warmth, hurry, and pressure at the throat; better open cool air, gentle steady motion (not hurrying), loosening the collar, and after a free discharge (epistaxis, menses, expectoration)—and this law reappears in Mind (hurry-irritability), Head (throbbing relieved by epistaxis), Nose (adenoidal catarrh worse warm rooms), Chest/Respiration (dyspnœa/palpitation on stairs with relief after expectoration or a little bright hæmoptysis), Female (bright flooding with head relief), and Generalities. The thyroid/lymphatic affinity differentiates Ferr-iod. from Ferrum-met.: the neck feels full and hot; the pulse leaps with emotion; a tremor lives under the skin; the face reddens and pales. From Iodium it differs by the Ferrum stamp—bright bleeding, anaemic plethora, and quick relief by discharges; from Phosphorus by the thyroidic heat and open-air craving rather than the constitutional hæmorrhagic impressibility; from Spongia by the moist, catarrhal character and vascular storm; from Calc-iod./Baryta-iod. by temperament and build (Ferr-iod. thinner, warmer, busier).

Pathophysiologically the remedy suits endocrine-vascular dysregulation: heightened sympathetic drive, thyroidal over-tone, capillary excitability, and mucosal hypertrophy. The result is a paradox of “hot-pale”: pallor of anaemia with sudden arterial surges—hence bright epistaxis, menstrual gushing, and hæmoptysis that relieve oppression. The practical test is simple: ask for the window story and the collar story. If the patient says, “I cannot bear this warm room; I loosen my collar; when my nose bleeds my head is better; when I move gently in the cool air my heart steadies,” Ferrum iodatum is at the centre of the case.

Clinical use. In goitre (simple or early exophthalmic) of hot-room-intolerant subjects with palpitation and tremor; in adenoids/tonsils of thin, restless children; in chronic bronchitis with thick yellow-green expectoration and bright streaks of blood; in fibroid menorrhagia of bright blood with pallor-flushes and “collar tightness”; and in acne/rosacea with gland heat. Low–mid potencies (3x–6x/6C) act neatly in chronic catarrh/adenopathy; 30C–200C when the keynote thermal law and hæmorrhagic “relief by discharge” are pronounced; LM/Q for endocrine and long glandular states. Repeat by need: in acute vascular surges dose on return of heat/pulse/pressure at neck; in chronic states, daily to begin, then space as the window stays shut without distress. Adjuvants should mirror the remedy: cool, dry air; avoid over-heated rooms and spiced alcohol; loosen collars; avoid hurry; nasal toilette without suppressing outlets. [Clarke], [Hughes], [Farrington], [Boericke], [Vithoulkas], [Dewey].

• Thyroid & Lymphatic Glands — goitre (simple/Graves-like), cervical glands enlarged, hot and tender; alternating pallor with flushing; palpitation/tremor; see Neck/Heart/Generalities. [Hughes], [Clarke], [Boericke].
• Blood & Vaso-motor System — anaemia with plethoric flushes, easy epistaxis and bright hæmorrhages; throbbing congestions; see Head/Chest/Heart/Rectum/Female. [Allen], [Farrington], [Boericke].
• Mucous Membranes (Nose/Throat/Bronchi) — thick, yellow-green catarrh; frontal pain; adenoids; chronic bronchitis with easy expectoration and bright streaks of blood; see Nose/Throat/Chest/Respiration. [Clarke], [Hering], [Boericke].
• Lungs — hæmoptysis of bright blood with oppression and pallor alternating with flush; dyspnœa on least effort; see Chest/Respiration. [Allen], [Farrington].
• Female Pelvis — uterine fibroids with flooding of bright blood; bearing-down and anaemic palpitation; see Female/Heart. [Clarke], [Boericke].
• Skin & Periosteum — acne/rosacea in plethoric-anaemic youth; periosteal soreness in strumous; see Skin/Back/Extremities. [Hughes], [Clarke].
• Liver/Spleen (portal glands) — congestive enlargement in scrofulous or catarrhal habit; flatulency; see Abdomen. [Clarke], [Hughes].

A busy, hurried temper more Iodine-like than Ferrum-metallic: must be doing; yet the strength flags on small exertion and he becomes irritable from the contradiction between will and power—then flushes, palpitates, and throws the window open, exactly mirroring the modality (better open cool air) already noted. He is oversensitive to contradiction and small contradiction heats him; the pulse bounds, face reddens, and a sense of choking at the neck may appear (Neck/Heart cross-link). Anxiety is practical and circulatory—fear of palpitation and bleeding; he is not hypochondriacal so much as hurried and easily overheated (Generalities). Children are thin, restless, adenoidal, fretful in warm rooms; they brighten in cool air, confirmatory of the open-air amelioration (Nose/Sleep echo). Memory suffers during chronic catarrh and thyroidic unrest; he forgets words when flushed and excited, a momentary anoxic fog that clears when he rests and cools. Emotional excitement or public speaking brings tremor and throat heat; loosening the collar eases (Throat/Neck link). Melancholy from long catarrh and gland disease may attend, but it is reactive and less profound than Sepia’s; work and air cheer him (compare Sepia). The mental picture swings with the vascular thermometer: when the head cools and the pulse quiets, the disposition mends at once—an outward sign of the inward sphere. [Kent], [Clarke], [Farrington], [Boericke].

Unrefreshing from heat, palpitation and head-throbs after midnight; must sit partly up and get air at the window—direct echo to Better open air and head high. Dreams of hurry and business, waking with heat at neck (Mind/Neck). Children snore with adenoids, start in sleep, and grow restless in hot rooms; they sleep quietly when the room is cooled. If warmth of bed ameliorates the skin, think Mezereum; if it aggravates and air relieves with vascular flushes, Ferr-iod. holds. Morning weariness until the air revives. [Boericke], [Clarke], [Hering].

Dreams of mounting stairs and being breathless; of bleeding and feeling relieved; of appearing in public and choking with a tight collar—symbolic of the remedy’s circulatory/thyroidic hinges. Dreams pass when the window is opened and the pulse quiets. [Clinical], [Clarke].

Ferrum iodatum blends Ferrum’s anaemic plethora and bright hæmorrhages with Iodine’s glandular/thyroid heat and restlessness. The clinical chord is unmistakable: thin, busy, hot-room–intolerant subjects with enlarged glands or goitre, flushes and palpitations on the least hurry, dyspnœa on stairs, throbbing head relieved by epistaxis, and catarrh of nose/bronchi with thick yellow-green mucus and occasional streaks or mouthfuls of bright blood—all better in cool, open air, by loosening the collar, by quieting excitement, and after free discharge (epistaxis, menses, expectoration). Suppressing nasal or uterine outlets rekindles congestion (explicitly linked in Head/Female). The temperament is hurried, excitable, yet quickly exhausted—strikingly improved when the thermal and glandular balance is restored (Mind/Generalities). Compare Ferrum-met. (red-pale face, vomiting of food; less thyroid), Iodium (greater wasting, ravenous hunger, heat and restlessness without Ferrum’s bright bleeds), Thyroidinum (endocrine regulation without Ferrum’s hæmorrhagic stamp), Spongia (goitre, dry barking cough rather than mucous, and less vascular flushing), Phosphorus (hæmoptysis with burning and thirst for cold; more hemorrhagic impressibility, less gland heat), Calcarea iodata/Baryta iodata (bulky gland children, slower, colder). The law throughout: worse warmth/haste/pressure at throat; better cool air, gentle exercise, and after a free, bright discharge. [Clarke], [Hughes], [Farrington], [Boericke], [Boger], [Kent].

Tendency to evening heat with throbbing head and red ears; thirst for small cool sips. Flushes of heat during day from emotion or effort; perspiration follows slight effort. No septic type; if fetor and prostration dominate, see Baptisia/Echinacea; Ferr-iod. is a vascular heat. [Clarke], [Allen], [Boericke].

Chill in open air slight and grateful; heat in rooms oppressive with head-throb; sweat on least exertion, warm and relieving. Alternation of hot flushes and pallor repeats Ferrum’s polarity with iodine’s heat-drive. Night-sweat in glandular states. [Clarke], [Hughes].

Fullness and throbbing in forehead and temples, with face alternately pale and flushed; worse warm rooms or sudden warmth, better open air and after a free epistaxis—this last repeating the “relief by discharge” already noted. Frontal pain with coryza; eyes feel hot; tight head-gear is intolerable (Nose/Eyes link). Vertigo on rising or in crowded, heated places; cool air steadies (Generalities). Anaemic headaches with bright flushes—“pale yet red”—a Ferrum hallmark shaded by iodine’s heat; if the heat craves warmth, think Belladonna; if cold air is craved and epistaxis relieves, Ferr-iod. holds. Pressure about the root of nose when adenoids obstruct; relief after blowing thick mucus (Nose cross-link). Headache at menses if flow is checked; better when it runs free (Female link). [Allen], [Clarke], [Boericke], [Farrington].

Burning and smarting in heated rooms; congested scleræ with thyroidic tremor; lids heavy from venous head. Photophobia to glare in congestive phases; better cool air. Exophthalmic states (Graves-like) with stare, tremor, palpitations, heat at neck—useful in the early vascular stage with goitre (Neck/Heart echo). Lachrymation with coryza is bland or slightly salt, not corrosive (contrast Allium cepa). Vision swims during flushes; steadies after air or nosebleed (Head link). [Clarke], [Boericke], [Hughes].

Ringing with throbbing head; fulness in warm rooms; transient deafness from adenoidal catarrh (Nose cross-link). Otorrhœa in scrofulous children with enlarged glands and pale-flush complexion yields when the glandular/catarrhal totality is met. Noise and hurry aggravate vascular tinnitus (Mind link). [Clarke], [Hering].

Adenoidal blockage, chronic hypertrophic rhinitis; thick, yellow-green discharge with frontal aching; worse warm rooms and fog; better cool, dry air—exactly mirroring the global modality. Easy epistaxis of bright blood relieves head-pressure (Head echo). Dryness and heat of nose on entering heated rooms, followed by gush of mucus or blood. Ozaena with offensive crusts in strumous adolescents may need Ferr-iod. in the early catarrhal-gland stage; if caries and acrid burning dominate, Euphorbium outranks. Sense of smell dulled in adenoids; returns in cool weather. [Clarke], [Allen], [Boericke], [Farrington].

Alternating pallor and sudden flushes; cheeks burn while lips may be pale—“anaemic plethora,” very Ferrum. Acne/rosacea in heated kitchens and chlorotic girls with thyroid throbbing; better with air and regulation (Skin link). Lips bleed easily during flushes; bright blood. Tight collars intolerable; neck seems swelled (Neck link). Expression eager, busy, with fine tremor in excitements (Mind/Heart echo). [Boericke], [Clarke], [Hughes].

Heat of mouth and tongue in warm rooms; taste metallic or brassy in catarrhal mornings. Gums spongy, bleed bright blood on brushing—vascular tendency. Salivation slight; breath hot during thyroid phases. Aphthæ not characteristic; if acrid, think Kreosotum. Teeth ache on hot drinks during flush; cool water relieves. [Allen], [Clarke].

No special odontalgia beyond vascular bleeding of gums and heat-agg. If toothache is throbbing, < warmth, > cold air with bright bleeding, Ferr-iod. may help the vascular soil; if splinter-like pains, Nit-ac. [Farrington].

Heat and sense of fulness in fauces; tonsils and adenoids hypertrophied; chronic follicular pharyngitis with hawking of tough mucus; worse warm rooms and after speaking; better cool air and loosening collar—cross-link to Neck/Modalities. Choking on lying with tight collar; must rise and open window (Sleep/Neck). Rawness from cough; easily congested voice in public speakers. [Clarke], [Boericke], [Hering].

Oppression and heat in chest, must get air; least ascent or hurry brings dyspnœa and bright hæmoptysis with relief afterwards—modal law repeated. Chronic bronchitis in scrofulous, with thick, yellow-green expectoration, morning and in warm rooms; cough easier in cool air. Soreness under sternum as if cords were tight; voice weak after speaking. If burning tracheal pain with acrid expectoration and desire for cold air dominates, compare Eucalyptus; if stitching and right-sided hepatization, Bryonia; Ferr-iod. remains the bright-bleed, hot-room–agg. bronchitic. [Allen], [Clarke], [Boericke], [Farrington].

Palpitation violent from the least hurry or emotion, flushing face and throbbing neck; worse warm rooms, better cool air and rest—grand modality reiterated. Pulse full, soft, bounding during flush; tremulous in exophthalmic states with thyroid enlargement. Precordial anxiety at night; must sit up and open window (Sleep link). After bleeding the heart quiets; suppression of menses or epistaxis rekindles it (Female/Head echoes). If iron-band constriction rules, think Cactus; if nervous hurry with coffee, Coffea; Ferr-iod. is vascular, bright-bleeding, thyroidic. [Clarke], [Farrington], [Boericke].

Short breath, worse from haste and hot rooms; better slow walking in cool air—explicit echo of Modalities. Must loosen clothing. Paroxysms of cough with a little bright blood at the end; relief follows. Asthma of scrofulous children in heated school-rooms; better playground air. [Allen], [Clarke], [Boericke].

Appetite often large (iodine-note) yet the patient loses flesh; hot meals and spiced food bring flushing and palpitation—dietary aggravation already signalled. Heartburn and acidity after hurry; flatulence presses upward (Chest link). Vomiting of food after eating is less constant than in Ferrum-met., but the Ferrum “food comes up” tendency appears in tired women with flushes. Desire for cool drinks in small quantities during heat. Weight at epigastrium on ascending or hurrying; must rest and breathe cool air. [Hughes], [Clarke], [Farrington], [Boericke].

Portal congestion with flatulence; liver and spleen feel heavy in scrofulous; clothes tight round waist intolerable (Generalities). Cutting colic during catarrhal diarrhœa in heated rooms, easing in open air. Mesenteric glands enlarged in thin, restless children; appetite good but they waste (Iodine trend with Ferrum flushes). Bearing-down in pelvic congestion at menses; abdomen hot (Female link). [Clarke], [Hughes], [Hering].

Bright bleeding hæmorrhoids in anaemic, flushing subjects; bleeding relieves head and oppression—repeat of “relief by discharge.” Proctitis when the room is hot; pruritus ani with venous heat. Constipation alternating with soft, bright blood-streaked stool. If piles are bruised, dark-venous and painful, Hamamelis outranks; if knife-like burning after stool, Ratanhia; Ferr-iod. is earlier, vascular and bright. [Clarke], [Farrington], [Boericke].

Frequent desire with hot urine during flushes; urination eases palpitation transiently (reflex). Albumin traces in thyroidic over-drive have been noted clinically; choose by totality. Bright hæmaturia from congestion is rare but in the line of Ferrum. No gravel keynote; if backache is worse before urination and better after, think Eupatorium purpureum. [Clarke], [Boericke], [Allen].

Aversion to hot, spiced foods (flush/pulse >); desire for cool simple fare and cool drinks in small quantities. Appetite large yet emaciation advances in glandular subjects—iodine signature, but with Ferrum’s bright flushing and hæmorrhages. Alcohol aggravates flushing and epistaxis. [Hughes], [Clarke], [Allen].

Sexual erethism with heat and flushes; emissions in overheated rooms; weakness after coitus. Orchitic soreness in strumous youths with enlarged inguinal nodes; better cool air. Prostate irritability with rush of blood and bright urethral spots after strain belongs to Ferrum’s vascular stamp. If neck-of-bladder irritation with backache before urination predominates, Eup-pur. [Clarke], [Farrington].

Uterine fibroids with menorrhagia or metrorrhagia of bright red blood; anaemic flushing, palpitation, and breathlessness on mounting stairs; the flow allays the head-pressure—clear Ferr-iod. ground (Heart/Head cross-link). Dysmenorrhœa with heat and a sense of thyroid swelling during period; collar intolerable (Neck link). Leucorrhœa hot and irritating in warm rooms. Sterility with thyroid enlargement and catarrh forms a clinical niche if the vascular–glandular totality is present. If bearing-down with indifference and chill-amel. by vigorous exercise dominates, Sepia; if purple congestion with exaltation, Murex; Ferr-iod. is the hot, bright-flowing, busy-hurried type. [Clarke], [Boericke], [Farrington], [Boger].

Cervical and dorsal aching with enlarged glands; neck hot and tender in goitre. Periosteal bone-pains at night in strumous; worse warmth of bed, better cool uncovering—iodide trend coloured by Ferrum’s blood. Lumbosacral weakness after flooding (post-hæmorrhagic), relieved by rest. [Clarke], [Hughes], [Boger].

Tremor on excitement; hands hot and red during flushes, then pale. Weariness on ascending; thighs powerless on a stair. Nodes tender along tibia in scrofulous. Chilblain-like heat in a warm room; craves air. If wandering stabbing, Berberis; here heat/flush dominates. [Clarke], [Farrington].

Acne and papular boils in plethoric-anaemic adolescents; cheeks red, nose dotted; worse in warm kitchens/classrooms, better air—skin mirrors the generalities. Itching eruptions flare with heat; cool sponging soothes (Fagopyrum-like in modality, but with Ferrum blood and gland habit). Rosacea with thyroid pulsation in women with fibroid flooding belongs on this ground. Nodes and indurations of glands under the jaw tender and hot (Glands echo). [Clarke], [Hughes], [Boericke].

Goitre / Thyroid over-action

• Iodium — ravenous appetite with rapid emaciation; burning heat; restless motion; less Ferrum-type bright bleeding; both crave cool air; Ferr-iod. adds anaemic flush and hæmorrhagic relief by discharge. [Hughes], [Clarke].
• Spongia — dry, barking laryngeal cough; hard goitre; less vascular flushing; Ferr-iod. has catarrh, heat, palpitation and bright bleeds. [Farrington], [Boericke].
• Thyroidinum — endocrine regulator for thyroid states; Ferr-iod. when bright hæmorrhage, catarrh, and Ferrum flushes colour the case. [Clarke].

Hæmoptysis / Bronchial catarrh

• Phosphorus — hæmoptysis with burning, great thirst for cold, weakness; constitution more hæmorrhagic and impressionable; Ferr-iod. more thyroidic heat, open-air amel., and glandular element. [Farrington], [Boger].
• Ferrum-met. — bright bleeds but more gastric (vomiting of food) and chilly; less thyroid; Ferr-iod. hotter, busier, catarrhal with adenoids. [Allen], [Clarke].
• Eucalyptus — fetid, copious bronchial catarrh; septic odour; Ferr-iod. brighter, vascular, and glandular. [Farrington], [Clarke].

Adenoids / Scrofulous glands

• Calcarea iodata — fat, pale, sweaty head, slow children with huge glands; Ferr-iod. thinner, hotter, hurried, flushes easily. [Clarke], [Boericke].
• Baryta carb. — dwarfing, timidity, tonsils huge; colder; Ferr-iod. is hotter and excitable, with bright bleeds. [Kent], [Farrington].

Uterine fibroids / Flooding

• Sabina — dark, clotted bleeding with cramping to sacrum; Ferr-iod. bright, arterial flow with heat and palpitation. [Farrington].
• Trillium — gushing bright hæmorrhage with syncope on least motion; Ferr-iod. adds thyroid heat and catarrh. [Clarke].
• Ferrum phos. — bright passive bleeding early; Ferr-iod. when gland/thyroid and hot-room aggravation overlay. [Boericke], [Boger].

Head flush / Epistaxis

• Belladonna — violent throbbing, delirious heat, wants dark; Ferr-iod. seeks cool air, and epistaxis relieves. [Farrington].
• Glonoinum — sun/heat stroke; surging carotids; Ferr-iod. lesser grade, linked to glands/menses/catarrh. [Clarke].

• Complementary: Ferrum-met. — for the constitutional iron state (red-pale, weak from least exertion); Ferr-iod. when thyroid/gland and hot-room aggravation supervene. [Clarke], [Boger].
• Complementary: Calcarea iodata — adenoids/tonsils; Ferr-iod. in hotter, thinner children; Calc-iod. for bulky, sweaty ones. [Boericke], [Clarke].
• Complementary: Phosphorus — follows in hæmoptysis when burning chest, thirst for cold predominate after Ferr-iod. cools the vascular storm. [Farrington].
• Follows well: Nux vom. — removes drugging/dietetic irritants in flushed, heated subjects; Ferr-iod. then regulates gland/catarrh. [Kent], [Clarke].
• Follows well: Hamamelis — after dark venous bleeding is controlled; Ferr-iod. to steady bright arterial tendency and catarrh. [Clarke], [Boericke].
• Precedes well: Thyroidinum — when endocrine regularisation is required after the Ferrum–iodine vascular storm subsides. [Clarke].
• Related: Iodium, Spongia, Calc-iod., Baryta-iod., Ferr-met., Ferr-phos., Phosph., Hamam., Trill. — choose per blood quality, gland habit, and modalities. [Farrington], [Boger], [Boericke].
• Antidotes: Nux, Coffea for medicinal over-action; general cool air and rest. [Kent], [Allen].
• Inimicals: none recorded; avoid aimless alternation among iodine/ferrum congeners on the same plane. [Boger], [Kent].

• Exophthalmic tendency with goitre: hot neck, tremor, palpitation, red-pale face; collar intolerable; Ferr-iod. 6C–30C steadies the vascular storm when cool air relieves and epistaxis helps. [Clarke], [Boericke].
• Fibroid flooding (bright) with head relief as flow becomes free; pallor-flushes and dyspnœa on stairs—Ferr-iod. 30C–200C; follow with Trillium if gushing persists without thyroid heat. [Farrington], [Clarke].
• Adenoids/tonsils in thin, hot children, worse warm classrooms, better playground air—Ferr-iod. 6C t.i.d.; alternate air hygiene; compare Calc-iod. if bulky cold children. [Boericke], [Clarke].
• Chronic bronchial catarrh with thick yellow-green expectoration and bright streaks; oppression relieved in cool air—Ferr-iod. 6x–30C; avoid hot rooms/spiced fare. [Allen], [Clarke].
• Post-hæmorrhagic palpitation with quick flushes: Ferr-iod. after Hamamelis/China to regulate the thyroid-vascular rebound. [Clarke], [Dewey].

Mind

• Hurry; restlessness with easy flushing in warm rooms — vascular-thyroidic temper. [Clarke], [Kent].
• Irritability from contradiction; heat and palpitation follow excitement — circulatory reactivity. [Kent], [Farrington].
• Anxiety about health during palpitations; better in open air — window-story rubric. [Clarke], [Boericke].
• Aversion to hot rooms; wants window open — thermal law. [Clarke].
• Forgetful during flushes; improves after rest and air — anoxic fog. [Clarke].
• Children fretful in warm rooms; better cool air — adenoid type. [Hering].

Head

• Congestion, throbbing forehead/temples, worse warm room, better open air — master head rubric. [Clarke], [Boericke].
• Headache relieved by epistaxis (bright) — relief by discharge. [Allen], [Farrington].
• Frontal pain with thick nasal discharge/adenoids — catarrh-head link. [Clarke].
• Vertigo in crowded heated places; better air — environment hinge. [Clarke].
• Headache at menses when flow scanty; better as it becomes free — menstrual hinge. [Clarke].
• Tight head-gear intolerable — mechanical pressure sign. [Clarke].

Nose

• Adenoids; chronic hypertrophic rhinitis with yellow-green mucus — gland–catarrh. [Clarke], [Boericke].
• Epistaxis bright; relieves head — Ferrum stamp. [Allen].
• Coryza worse warm rooms/fog; better cool, dry air — modality. [Clarke].
• Nasal heat on entering warm room; then mucus/bleed — thermal trigger. [Allen].
• Smell dull from adenoids; returns in cool weather — clinical. [Clarke].
• Ozaena (early catarrhal stage) — selection note. [Clarke].

Chest/Respiration/Heart

• Palpitation from the least hurry/emotion; worse warm rooms; better cool air — grand cardiac rubric. [Clarke], [Boericke].
• Dyspnœa on ascending; must stop for air — exertion hinge. [Allen], [Farrington].
• Hæmoptysis bright, with relief of oppression — Ferrum hallmark. [Allen], [Farrington].
• Bronchitis with thick yellow-green expectoration; hot-room aggravation — catarrh. [Clarke], [Boericke].
• Sensation of choking from tight collar/neckcloth — thyroid pressure. [Clarke].
• Tremor with tachycardia in early Graves — endocrine note. [Clarke].

Female

• Uterine fibroids; menorrhagia bright with flushing/palpitation — key uterine rubric. [Clarke], [Boericke].
• Dysmenorrhœa with neck heat, collar intolerable — thyroid–menses link. [Clarke].
• Flooding < warmth and hurry; > free flow and air — modality echo. [Farrington].
• Leucorrhœa hot, irritating in warm rooms — thermal nuance. [Clarke].
• Post-hæmorrhagic palpitation and flushes — after-care. [Dewey].
• Sterility with goitre and catarrh (functional) — niche. [Clarke].

Generalities

• Worse warm rooms/overheating; better open cool air — master general. [Clarke], [Boericke].
• Worse hurrying/ascending; better gentle exercise — exertion law. [Farrington], [Hughes].
• Relief after free discharge (epistaxis, menses, expectoration) — discharges hinge. [Allen], [Clarke].
• Tight clothing about neck aggravates — thyroid pressure. [Clarke].
• Alternating pallor and flushes (anaemic plethora) — Ferrum constitution. [Boericke].
• Tremor with excitement; steadies in cool quiet — endocrine/vaso-motor. [Clarke], [Farrington].

Skin

• Acne/rosacea of plethoric-anaemic youth; worse heat of kitchen/classroom — constitutional skin. [Clarke], [Hughes].
• Itching in warm rooms; better cool sponging — thermal skin echo. [Boericke].
• Glandular nodes hot/tender under jaw — lymphatic tie. [Clarke].
• Flushes of face with sweat on slight effort — vascular sign. [Boericke].
• Chilblain-like heat of hands in warm room — minor support. [Clarke].
• Periosteal soreness nocturnal in strumous — iodide edge. [Hughes], [Clarke].

Allen, T. F. — Encyclopædia of Pure Materia Medica (1874–79): provings/clinical notes; bright hæmorrhages; exertion-dyspnœa; epistaxis relief; catarrh.
Boericke, W. — Pocket Manual of Homœopathic Materia Medica (1901): keynotes—goitre, palpitation in warm rooms, adenoids/bronchial catarrh, fibroid menorrhagia, bright hæmorrhages.
Boger, C. M. — Synoptic Key of the Materia Medica (1915): miasmatic colouring; comparisons with Ferrum-met., Iodium, Phosphorus; modality synthesis.
Clarke, J. H. — A Dictionary of Practical Materia Medica (1900): substance background; thyroid/lymphatic sphere; adenoids; catarrh; thermal modalities; hæmorrhagic relief.
Farrington, E. A. — Clinical Materia Medica (1887): differentials—Phosph., Spong., Bell., Trill.; exertion dyspnœa; Ferrum vs Iodine themes.
Hering, C. — The Guiding Symptoms of Our Materia Medica (1879): confirmations in adenoids, scrofulous glands, otorrhœa, catarrhal states.
Hughes, R. — A Manual of Pharmacodynamics (1870): pharmacology of iron/iodine; glandular and mucosal actions; dietary aggravations; photos of “alterative” use.
Kent, J. T. — Lectures on Homœopathic Materia Medica (1905): constitutional pointers to Ferrum and Iodine temperaments; mental hurry and heat.
Nash, E. B. — Leaders in Homœopathic Therapeutics (1899): remarks on bright hæmorrhages and Ferrum group indications.
Dewey, W. A. — Practical Homœopathic Therapeutics (1901): dosing and sequencing in hæmorrhages and post-hæmorrhagic states; endocrine hints.
Phatak, S. R. — Materia Medica of Homoeopathic Medicines (1977): terse keynotes—glands/thyroid; bright bleeding; heat aggravation; open-air amelioration.
Tyler, M. L. — Homœopathic Drug Pictures (1942): portraits of Ferrum types and iodine heat; “window-openers” with bright bleeds and goitre.