What is Lac Caninum?
Origin and source. Lac caninum is prepared from the milk of the dog. In homeopathic provings the substance was taken in its natural form and its symptom picture recorded; the animal origin places it among the "animal" remedies, whose pictures often carry themes of vulnerability, territory, and instinctual anxiety.
Preparation in homeopathy. As with all homeopathic remedies, the source substance is prepared by serial dilution and succussion according to pharmacopoeial method. The final preparation is highly diluted; what remains is a remedy defined by its traditional symptom picture in the materia medica, not by any material dose of the original milk.
Historical place in homeopathy. Lac caninum appears in the classic materia medicas as a remedy of striking laterality and of the "moving lump" sensation, with a strong female/hormonal emphasis. It is a focused rather than constitutional remedy, most often reached for where breast and uterine symptoms shift sides or where a globus-like lump seems to travel, accompanied by the characteristic anxiety of being unprotected.
Key Characteristics
- Left-to-right shifting — symptoms begin on the left and cross to the right (or alternate sides), classically breast and throat pains.
- Sensation of a moving lump — a ball or plug felt in the throat (globus), breast, or womb that seems to shift position.
- Breast dominance — painful, swollen, nodular breasts, often one then the other; tenderness and a sense of heaviness.
- Hormonal / female focus — menstrual disturbances, leucorrhoea, and uterine discomfort tied to the cycle.
- Low self-worth & abandonment anxiety — a "canine" fear of being unprotected, despised, or cast out; weeping, clinging.
- Aggravation ~3 a.m. and from touch — symptoms flare in the small hours and with contact/pressure.
- Better from swallowing, hard pressure on the lump, rubbing; worse from touch, at 3 a.m., before menses.
Traditional Symptom Picture
In homeopathic practice, lac caninum is traditionally considered when a person's symptom pattern includes the themes above. The picture is built system by system:
Head & Throat
A sensation as if a plug or ball were lodged in the throat (globus) that moves when swallowed; the throat feels constricted yet swallowing may relieve. The head is heavy, with a dull frontal ache and a low, weepy state.
Breast
The leading sphere. Painful, swollen, nodular breasts that are exquisitely tender; the pain often starts in the left breast and shifts to the right, or alternates. A lump-like heaviness and a sense the breast is too heavy for its support. A traditional consideration of mastitic and cyclic breast tenderness within the individualised picture.
Female & Uterus
Menstrual disturbances — pains that shift sides, flow that is dark or clotted, and a bearing-down or "lump in the womb" sensation. Acrid or bland leucorrhoea. A traditional consideration of hormonal and premenstrual states within the individualised picture.
Stomach & Digestive
A sinking, empty, hungry feeling; craving for food that disagrees; the globus sensation may extend to a "lump in the stomach." Nausea and a foul taste, worse before menses.
Mind
The psychological signature. A profound sense of worthlessness, of being unloved, despised, or in danger of abandonment — a "canine" vulnerability. The person weeps easily, clings for reassurance, and fears being left unprotected. Beneath it there may be irritability and a sharp tongue. This anxiety of the unprotected is the mental keynote.
Constitution & temperament
The lac caninum person is the vulnerable, side-shifting, lump-feeling type, most often a woman whose hormonal complaints mirror an inner sense of being unsupported. Physically the symptoms cross the midline and move; emotionally there is the anxious, clinging, self-deprecating state. The constitutional backdrop is instinctual vulnerability rather than a fixed temperament.
Modalities
Better: swallowing, firm pressure on the lump/breast, gentle motion, sympathy. Worse: touch, 3 a.m., before and during menses, emotional upset.
Every symptom is read as part of an individual's complete picture. Two people with the same diagnosis may receive different remedies.
Conditions Where Practitioners May Consider Lac Caninum
The conditions below are ones where homeopathic practitioners traditionally discuss lac caninum as one possible remedy among many, selected by the individual's complete symptom picture. Each links to its live condition overview and (where available) its in-depth guide.
Homeopathy individualises; responsible care includes medical diagnosis where indicated.
Common Patient Questions
- "Is lac caninum made from dog's milk?" — yes, homeopathically prepared from dog's milk by serial dilution and succussion; it is a highly diluted remedy, not a food or supplement.
- "Why does my breast pain switch sides?" — left-to-right (or alternating) shifting of breast and throat symptoms is the hallmark of the traditional lac caninum picture and is exactly what a homeopath assesses.
- "Why do I feel a lump in my throat that moves?" — the globus/moving-lump sensation is a classic keynote; it must be distinguished from organic causes by a physician where indicated.
- "How do I know the potency?" — potency is individualised by the practitioner, not chosen from a fixed chart.
Potencies
Homeopathic preparations use potency scales indicating dilution and succussion:
- 6C / 30C — lower Centesimal potencies, traditionally for milder or more superficial patterns.
- 200C — a higher potency, traditionally for deeper or constitutionally-matched cases.
- 1M — a high potency used occasionally in individualised practice.
- LM — a gentle, sequential potency format for sensitive individuals.
Potency is individualised — chosen by the practitioner from your constitution and response. We do not advise self-selection of potency.
Dosage
Homeopathic dosage varies by individual: constitution, acuity, potency, and response. A practitioner sets and adjusts the plan. Repeated self-dosing is discouraged as it can obscure the remedy's effect.
Safety & Precautions
- Pregnancy & breastfeeding: discuss with your physician and a qualified homeopath.
- Children: practitioner-led remedy selection.
- Breast lumps: any new or persistent breast lump must be examined by a physician; homeopathy is complementary, not a replacement for assessment.
- Urgent care: severe pain, breathing difficulty, neurological symptoms — seek conventional medical care promptly.
Side Effects
- Homeopathic aggravation: a brief, temporary intensification may occur as the remedy acts; judged by the practitioner.
- Stop & consult if symptoms worsen persistently or new severe symptoms appear.
Who May Benefit?
Framed as symptom patterns, not diagnoses: a person (often a woman) with side-shifting breast or throat symptoms — a moving globus/lump sensation, painful swollen breasts that alternate sides, hormonal menstrual disturbance — together with a deep anxiety of being unprotected or unloved and a low sense of self-worth, worse around 3 a.m. and from touch. Benefit is individual; a matching pattern — not a disease label — is what the practitioner assesses.
Who Should Avoid Self-Medicating?
Infants/young children, pregnant/breastfeeding women without guidance, anyone with a new or persistent breast lump without medical assessment, chest pain, neurological symptoms, severe infections, persistent worsening symptoms.
Lac Caninum vs Other Remedies
Comparison tables show why remedy choice is individualised — pattern contrasts, not rankings.
Lac Caninum vs Phytolacca
Phytolacca is the hard, cracked, radiating, "shooting to nipple" breast-pain type — see phytolacca for the contrast.
Lac Caninum vs Conium
Conium is the hard, indurated, slowly-growing breast/node type with a "worse from touch" hardening — see conium for the distinction.
Lac Caninum vs Sepia
Sepia is the hormonally-flat, cold, indifferent, bearing-down "pelvis falling out" type — see sepia for the contrast.
Lac Caninum vs Lachesis
Lachesis is the left-sided, talkative, jealous, "worse from sleep/tight clothing" type — see lachesis for the contrast.
Lac Caninum vs Belladonna
Belladonna is the sudden, hot, throbbing, red, "worse from touch/jar" inflammatory type — see belladonna for the contrast.
Related Remedies
- Phytolacca — radiating, hard breast-pain contrast.
- Conium — hard, indurated breast/node type.
- Sepia — hormonally-flat, bearing-down contrast.
- Lachesis — left-sided, talkative, jealous type.
- Belladonna — sudden, hot, inflammatory contrast.
- Calcarea Carbonica — chilly, sluggish, sweaty-head contrast.
- Pulsatilla — weepy, changeable, thirstless contrast.
- Sulphur — deep constitutional antipsoric counterpoint.
