Remedy Reference Guide

Natrum Phosphoricum (Nat Phos)

Natrum phosphoricum (sodium phosphate)

Natrum Phosphoricum (Nat Phos) uses in homeopathy: a biochemic tissue salt linked with acidity, sour risings and an acidic digestive state, its key picture, potencies and FAQs — informational, consult a homeopath.

Quick answer

What is Natrum Phosphoricum used for in homeopathy?

Natrum Phosphoricum, one of the twelve biochemic tissue salts, is associated in homeopathy with acidity - sour belching and vomiting, a creamy yellow coating at the back of the tongue, and the digestive picture traditionally linked with an over-acidic state.

Reviewed & updated: June 2026

This is general information about a homeopathic remedy, not a prescription or dosing advice. In homeopathy the correct remedy and potency are chosen for the whole individual symptom picture by a qualified homeopath — the same remedy is not right for everyone. Do not self-medicate, and consult a qualified homeopathic doctor (and your physician for serious or persistent conditions) before taking any remedy.

What Natrum Phosphoricum is used for

Acidity with sour belching or risings
Sour vomiting, especially in children
A creamy, golden-yellow coating at the back of the tongue
Indigestion from rich or fatty food
A digestive picture traditionally linked with worms in children

Characteristic symptom picture

Homeopaths look for these guiding features when considering Natrum Phosphoricum.

Sourness of the belching, vomiting, and sweat
A creamy yellow coating on the back of the tongue
Worse from fatty, sugary, and sour foods
Acid indigestion with a full, uneasy stomach
Grinding of the teeth in children in the worm picture

Potency

Natrum Phosphoricum is available in several potencies such as 6C, 30C and 200C, and in lower or biochemic and mother-tincture forms in some cases. The right potency and repetition depend entirely on the individual case and are decided by a qualified homeopath - this page gives no dosing instructions.

The Nat Phos picture and modalities

Natrum Phosphoricum is the tissue salt of acidity. Everything about its picture tends to be sour - sour belching, sour vomiting, sour sweat - with a characteristic creamy, golden-yellow coating at the back of the tongue and aggravation from fatty, sugary, and sour foods. It is also a classic name in the children's worm picture with teeth-grinding. A homeopath weighs this acidic, sour pattern within the whole picture.

Before you consider Nat Phos

This is background information, not advice to self-treat. Persistent acidity, reflux, or a suspected worm infestation in a child should be assessed medically, since these have causes that need proper evaluation and, for worms, medical de-worming. In homeopathy the right remedy and potency are chosen for the whole individual by a qualified practitioner. Homeopathy should complement, not replace, conventional care.

Conditions where Natrum Phosphoricum is considered

Homeopathy for Acidity & Acid Reflux Homeopathy for GERD / Acid Reflux Homeopathy for Intestinal Worms

Frequently asked questions

What is Nat Phos used for in homeopathy?

It is an informational biochemic tissue salt associated with acidity, sour risings, and an acidic digestive state. A homeopath matches it to the whole picture, not by name alone.

Is Nat Phos for acidity?

Sour, acidic indigestion is a classic Nat Phos keynote, chosen when the whole picture fits. It is supportive care; persistent acidity or reflux should also be assessed medically to exclude other causes.

Should I take this remedy myself?

Self-medication is discouraged. The correct remedy and potency depend on your whole individual symptom picture and should be chosen by a qualified homeopath.

Is it safe alongside other treatment?

Many people use homeopathy alongside conventional care, but you should inform both your doctor and your homeopath about everything you take so your care stays coordinated.