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Remedy comparison

Calcarea carbonica vs Kali phosphoricum

(Calcarea carbonica · Kali phosphoricum)

Both come up for exhaustion and feeling overwhelmed.

In short

Calcarea is constitutionally easily tired; Kali phos is depleted by a specific stretch of strain.

Side by side

(the classic distinctions homeopaths look for)

Feature Calcarea carbonica Kali phosphoricum
FatigueLong-standing, physicalMental and nervous, after a period of stress
CauseConstitution, overwork, coldOverwork, study, worry, excitement
MoodWorried, cautious, overwhelmedJumpy, frazzled, low
TemperatureChilly, clammyBetter for warmth
Better forDry weather, restRest, warmth, eating

Calcarea carbonica

Better

Dry weather, Rest

Worse

Cold and damp, Exertion, especially climbing stairs, Stress and overwork

Kali phosphoricum

Better

Rest, Warmth, Eating

Worse

Mental exertion, Worry and excitement, Cold, Early morning

From the classic texts

“This great Hahnemannian anti-psoric is a constitutional remedy par excellence.”

On Calcarea carbonica: William Boericke, Pocket Manual of Homoeopathic Materia Medica (1901)

“One of the greatest nerve remedies. Prostration. Weak and tired.”

On Kali phosphoricum: William Boericke, Pocket Manual of Homoeopathic Materia Medica (1901)

Read the full profiles

  • Calcarea carbonica

    (Calcarea carbonica · Calcium carbonate from oyster shell)

    A major constitutional remedy. Calcarea carbonica is associated with steady, reliable people who tire easily, feel the cold and can become overwhelmed and anxious under pressure.

    Read more
  • Kali phosphoricum

    (Kali phosphoricum · Potassium phosphate)

    Running on empty. Kali phosphoricum is associated with mental and nervous exhaustion from overwork, study, worry or excitement: the brain-fogged, frazzled end of a long stretch.

    Read more

Articles that discuss both

Homeopathy for Focus and Brain Fog

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12 remedies to keep at home

When to think of each one, how to tell them apart, when to call a doctor instead and a printable home remedy guide.

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This page is for education only and is not medical advice. Homeopathy is complementary care, not a substitute for diagnosis or treatment by a licensed medical provider. Seek medical care for severe, worsening or emergency symptoms. Please view our Disclaimer.