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Substances, plants and mushrooms

The list contains the most frequently asked about and most common causes of poisoning in humans. You can search for items by typing in a search word. If you do not find the item you are looking for, you may call the Poison Information Center to check if it is poisonous.

Unfortunately, the Poison Information Center is not able to identify plants and mushrooms over the phone. Identification should always take place on the spot.

In addition to books on mushroom identification, mushroom experts can help you identify mushrooms. Experts can be found via mycological societies and the Martha Organization, for example.

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Explanation of symbols marked after the plant:

[F] = Phytophotodermatitis; sap or juice from the plant may cause skin symptoms, such as blisters, after exposure to sunlight.

[K] = The plant is non-toxic in moderate amounts or when properly prepared.

Plant causes topical irritation = Sap or juice from the plant may cause irritation (such as stinging) on the skin and in the mouth. Does not absorb into the body.

N

Nail polish

Substances

Nail polish is not easy to swallow and the bottles tend to be small. Therefore, the risk of ingesting toxic doses of nail polish is small.

Other nail care products may contain harmful substances. Contact the Poison Information Centre to confirm toxicity.

Naproxen

Substances

Keywords: Miranax®, Naprometin®

1-2 tablets intended for adults or a few gulps of naproxen mixture are unlikely to cause symptoms of poisoning in small children.

Abdominal pain, nausea, vomiting, fatigue and restlessness are common symptoms of naproxen overdose.

If the ingested amount is greater, contact the Poison Information Centre to confirm toxicity.

Nicotine products

Substances

Keywords: Nicotinell®, Nicorette®, Nicotine gum

Children: If more than 4 mg of nicotine gum or 2 mg lozenge are ingested, seek medical assistance. Nicotine poses the greatest risk to children under the age of 1. Contact the Poison Information Centre to confirm toxicity.

If there are no symptoms or only mild gastrointestinal symptoms, monitor the child at home. If the ingested amount is greater or the child develops severe gastrointestinal or CNS symptoms, seek medical assistance.

Nitro®

Substances

Keywords: Glyceryl trinitrate, Nitroglycerin ®

Swallowing less than three sublingual 0.5mg nitroglycerin tablets is not likely to cause symptoms that require special treatment. When swallowed, nitroglycerin tablets lose much of their potency. If the tablets were chewed or sucked like candy, the risk is greater. In such cases, contact the Poison Information Centre to confirm toxicity.​

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