What is Ferrum picricum?

Ferrum picricum is a homeopathic remedy. Its Latin name is Ferri picras. It is also known as iron picrate.

It is made from an iron salt of picric acid. The remedy is serially diluted. That means the source is mixed with water or alcohol, shaken, then mixed and shaken again, many times over.

At 30C, no source material is left. 30C means the mix was watered down 100 times over, 30 times in a row. What you take is the carrier only: water, alcohol, or a sugar pill.

Homeopaths have used it for warts on the hands. Some have also used it for an enlarged prostate (a gland near the bladder) in older men, tired eyes, and ringing in the ears.

Trials do not show that it works better than a placebo (a dummy pill). Long use in a tradition is not proof that a remedy works. This page reports both, and keeps them apart.

How does Ferrum picricum work?

No one has shown a way this remedy could work in the body.

Homeopathy rests on two old ideas. One is that a substance which causes symptoms can ease them when given in tiny amounts. The other is that shaking leaves a trace or imprint of the source in the liquid.

Chemistry does not support the second idea. At 30C there is no iron and no picric acid left to act on you.

So any change you notice is best explained in other ways. It may be placebo, the normal ups and downs of a problem, or the time and care a homeopath gives you.

What forms does Ferrum picricum come in?

Most people meet it as small sugar pills that melt under the tongue. It also comes as liquid drops, usually made with alcohol. A few shops sell it as a spray or as sugar granules.

Common strengths are 6C, 30C and 200C. Homeopaths use 30C most often.

Low decimal strengths, such as 3X and 6X, are watered down far less. These may still hold traces of the raw salt, so they are not the same thing as a 30C pill.

Where it comes from:

Picric acid was made in the 1800s. It was used as a yellow dye and in explosives. Homeopaths began testing salts of it soon after.

Ferrum picricum is the iron salt. It appears in homeopathic reference books from the late 1800s and early 1900s.

Those books list it mainly for warts in crops on the hands, and for prostate trouble in older men. It has stayed a minor remedy. Some homeopaths use it; many never do.

What does Ferrum picricum help with?

• Warts on the hands: This is the best-known use in the tradition. Old homeopathic books describe warts growing in small crops on the backs of the hands. No human trials have tested this remedy for warts. Many warts also clear on their own over months, which makes any single case hard to read. See a doctor about any wart or mole that bleeds, itches, or changes shape, size or colour.
• Enlarged prostate (a gland near the bladder) in older men: Homeopathic texts list it for a slow, weak urine stream in older men. There is no trial evidence that it helps. An enlarged prostate can also hide other causes of the same symptoms. Get checked by a doctor first. Do not swap proven medicines for this remedy.
• Tired, aching eyes from close work: Tradition links the remedy with eye strain after long reading or fine work. No human trials support this. Rest, better light, and an eye test are the steps with real backing. Sudden vision loss, eye pain or flashing lights need same-day care.
• Ringing in the ears (tinnitus): Some older sources mention noises in the ears alongside the other keynotes. The evidence here is traditional only. No trial has tested this remedy for tinnitus. New ringing in one ear, or ringing with hearing loss or dizziness, should be checked.
• Heavy, weak-feeling legs: Homeopathic books describe a dragging, tired feeling in the legs and lower back. There is no trial evidence for this use. Many other causes are common, from low iron to nerve problems. Sudden weakness, numbness, or a swollen painful calf needs urgent care.

What are the side effects of Ferrum picricum?

• No effect at all: the usual outcome at 30C
• A short flare of symptoms in the first few days, which homeopaths call an aggravation (a brief worsening)
• Gas or loose stools in people who react to lactose (milk sugar), as most pills are made from it
• A sore mouth or mild rash, rarely, from the pills or drops
• Flushing or upset from the alcohol in liquid drops, in people who avoid alcohol
• Nausea, headache, dark urine or yellow skin: a worry only with low potencies such as 3X, which may hold real picric acid
• Harm from delay, if a changing wart, a new lump, or a urine problem goes unchecked

Good to know:

Side effects from a 30C remedy are very unlikely. There is nothing of the source left in it. Most people report no change at all.

The main risk is delay. A wart that changes, a new lump, or trouble passing urine needs a doctor, not a remedy.

Low potencies such as 3X may hold traces of picric acid. In larger doses that acid can harm the kidneys, liver and blood.

How much Ferrum picricum should you take?

• Recommended daily: There is no proven dose, because no trial has found an effect to dose for. In common practice, people take 3 to 5 pills of 30C, or 5 drops, up to three times a day. Homeopaths often use less, and stop as soon as things improve. Stay with 30C or higher. Low potencies such as 3X may hold traces of real picric acid.
• Best time of day: Any time of day. Many people take it on waking and at bedtime, which is easy to remember.
• With or without food: Usually taken between meals. The custom is to keep the mouth clear of food, drink, mint and strong smells for about 15 minutes each side. This is tradition, not a tested rule.
• Time to effect: Not known. No trial has measured it. Homeopaths often talk about days to weeks, but that is custom, not proof.
• How long to take it: Short use only. Most homeopaths reassess after two to four weeks. If nothing has changed by then, stop. Long open-ended use just delays a proper look at the problem.