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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.
H
Hair styling products
Keywords: hair spray, styling mousse, detangling liquid
A single dose is considered harmless. Does not require treatment.
Heartburn drugs
Keywords: Rennie ®, Antepsin ®, Balancid Novum ®, Gaviscon ®, Galieve Peppermint ®, antacids
A single dose of mentioned drugs is considered harmless. Does not require treatment.
In case of other heartburn drug, contact the Poison Information Centre to confirm toxicity.
Helium
Keywords: balloon, foil balloon
Inhaled in small amounts, helium gas is not considered dangerous. In addition to a high-pitched voice, inhaling helium gas may cause symptoms such as headache and dizziness. These are caused by hypoxia resulting from the helium gas displacing oxygen.
Herbicide
Keywords: glyphosate
The content varies. Contact the Poison Information Centre to confirm toxicity.
Hydrocortisone
Keywords: Corticosteroids, Hydrocortison®
A single dose of cortisone tablets or cream is considered harmless. In large amounts, creams may cause gastrointestinal symptoms. Does not require treatment.
Hydrogen peroxide
Toxicity of hydrogen peroxide depends on the amount and the concentration. The poisoning risk of 3% hydrogen peroxide, which is often used in cosmetics, is low. Contact the Poison Information Centre to confirm toxicity.