Kali Sulphuricum, also known as Potassium Sulphate, is one of the twelve biochemic tissue salts introduced by Dr. Wilhelm Heinrich Schussler.
It plays a vital role in oxygen transportation and cellular metabolism, making it essential for skin health, mucous membranes, and the respiratory system.
This remedy is particularly useful for chronic skin diseases, catarrhal conditions, and the later stages of inflammation when yellow, sticky discharges are present.

Table of Contents
ToggleScientific Classification
- Chemical Name: Potassium Sulphate
- Common Name: Kali Sulphuricum
- Molecular Formula: K₂SO₄
Role of Kali Sulphuricum in the Body
- Kali Sulphuricum acts as an oxygen carrier, helping to distribute oxygen throughout the body, particularly to epithelial tissues and mucous membranes.
- It is crucial for cellular respiration, detoxification, and maintaining the skin’s integrity.
Functions of Kali Sulphuricum
✅ Oxygen Transport – Helps in carrying oxygen to the tissues, ensuring proper cellular respiration.
✅ Skin and Mucous Membranes – Supports epithelial cell renewal, making it essential for treating eczema, psoriasis, dandruff, and chronic sinusitis.
✅ Later Stages of Inflammation – Useful in bronchitis, pneumonia, sinusitis, and other catarrhal conditions where yellow, sticky mucus is present.
✅ Supports Liver Detoxification – Assists in the liver’s detox process, helping with jaundice and sluggish liver function.
✅ Regulates Perspiration – Helps control excessive sweating, especially sweaty feet or armpits.
Indications of Kali Sulphuricum
Kali Sulph is indicated for chronic, slow-healing, or relapsing conditions, particularly those affecting the skin, respiratory tract, and mucous membranes.
1. Respiratory System
🔸 Chronic bronchitis, asthma, pneumonia – Yellow, thick, sticky mucus that is difficult to expel.
🔸 Sinusitis and colds – Nasal discharge that is yellow and sticky, worsening in warm rooms and improving in open air.
🔸 Chronic otitis media (ear infections) – Yellow ear discharge.
2. Skin Conditions
🔸 Eczema, psoriasis, ringworm, dandruff – Flaky, scaly, and dry skin conditions with yellowish crusts.
🔸 Acne and boils – Yellow pus-filled eruptions, slow healing.
🔸 Fungal infections – Athlete’s foot, itchy skin conditions that worsen in warmth.
3. Digestive System & Liver Health
🔸 Jaundice and sluggish liver – Helps detoxify the liver.
🔸 Chronic diarrhea with yellow stools.
🔸 Indigestion and bloating.
4. Nervous System & Mental Picture
🔸 Irritability and mood swings – Restless and anxious personality.
🔸 Mental exhaustion and fatigue – Brain fog, difficulty concentrating.
Deficiency Symptoms of Kali Sulphuricum
When the body lacks Kali Sulph, the following symptoms may appear:
❌ Slow-healing skin conditions (eczema, psoriasis, dandruff, ringworm, acne).
❌ Chronic colds, sinus infections, or respiratory problems.
❌ Sluggish digestion, bloating, and yellowish stools.
❌ Restlessness and irritability.
❌ Excessive sweating, especially in feet and armpits.
Modalities (What Makes Symptoms Better or Worse?)
Aggravation (Worse by 🔽)
- Warm, closed rooms.
- Evening time.
- Heat and damp weather.
Amelioration (Better by 🔼)
- Open air, fresh breezes.
- Cold applications.
- Gentle movement.
WHAT ARE MODALITIES IN HOMOEOPATHY?
Relationship with Other Biochemic Medicines
🟢 Complementary Remedies
- Natrum Sulphuricum (for liver and respiratory issues).
- Silicea (for skin infections and slow healing).
🔴 Antidotes (Conflicting Remedies)
- Kali Muriaticum (may counteract some effects).
Dosage & Potency
📌 Potency: Kali Sulphuricum is most commonly used in 6X or 12X potency.
📌 Dosage: 4 tablets, 3-4 times daily (or as directed by a practitioner).
Conclusion
Kali Sulphuricum is a powerful oxygen carrier in the biochemic system, primarily benefiting the skin, respiratory system, and digestive organs.
It is particularly effective in the later stages of inflammation, where yellow, sticky discharges and slow healing are present.
It is safe, effective, and a vital remedy for chronic, relapsing conditions.
💡 Exam Tip for Students: Remember Kali Sulphuricum = Oxygen Carrier + Yellow Discharges + Chronic Skin & Respiratory Conditions.
The 12 Essential Cell Salts
- Calcarea Fluorica (Calc. Fluor.) – Strengthens bones, teeth, and skin elasticity
- Calcarea Phosphorica (Calc. Phos.) – Essential for bone growth and cell regeneration
- Calcarea Sulphurica (Calc. Sulph.) – Supports skin healing and detoxification
- Ferrum Phosphoricum (Ferr. Phos.) – First aid for inflammation and oxygen transport
- Kali Muriaticum (Kali Mur.) – Supports mucous membranes and detox processes
- Kali Phosphoricum (Kali Phos.) – The nerve tonic, combats stress and fatigue
- Kali Sulphuricum (Kali Sulph.) – Supports respiratory health and skin conditions
- Magnesia Phosphorica (Mag. Phos.) – Relieves muscle cramps and nerve pain
- Natrum Muriaticum (Nat. Mur.) – Regulates water balance and emotional well-being
- Natrum Phosphoricum (Nat. Phos.) – Balances acidity and aids digestion
- Natrum Sulphuricum (Nat. Sulph.) – Liver detox and bile production
- Silicea (Sil.) – Strengthens connective tissues, skin, hair, and nails.