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Nemesia (Nemesia)
The plant is non-toxic.
Never-never plant (Ctenanthe)
The plant is non-toxic.
New Guinea Impatiens (Impatiens hawkeri)
The plant is non-toxic.
Nicotine products
Keywords: Nicotinell®, Nicorette®, Nicotine gum
Children: If the amount ingested is under 6 mg of any nicotine product and there are no symptoms or only 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.
For snus, nicotine pouch and electronic cigarette, check the information separately.
Nigella (Nigella)
The plant is toxic, but ingesting a small amount rarely causes symptoms.
Nipplewort (Lapsana communis)
The plant is non-toxic.
Nitro®
Keywords: Glyceryl trinitrate, Nitroglycerin ®
Four sublingual 0.5 mg nitroglycerin tablets or less is not likely to cause symptoms that require special treatment. If the amount is greater contact the Poison Information Centre to confirm toxicity.
Norfolk Island pine (Araucaria heterophylla)
The plant is non-toxic.
Northern firmoss (Huperzia selago)
The plant is toxic, but ingesting a small amount rarely causes symptoms.
Nutmeg [K] (Myristica fragrans)
The plant is toxic, but ingesting a small amount rarely causes symptoms.
[K] = Can be used for human consumption in moderation.