Dosing

Adults (18 years and older):

There is no proven safe or effective dose for English ivy.

Children (younger than 18 years):

There is no proven safe or effective dose for English ivy in children.

Safety

Allergies

Avoid in individuals with a known allergy or hypersensitivity to English ivy (Hedera helix) or its constituents. Crossreaction or cross- senstivity has been noted between Hedera helix and Dendropanax trifidus, Schefflera arboricola, dandelion (Taraxacum officinale), false ragweed (Ambrosia acanthicarpa), giant ragweed (Ambrosia trifida), short ragweed (Ambrosia artemisifolia), sagebrush (Artemisia tridentata), wild feverfew (Parthenium hysterophorus), yarrow (Achillea millifolium), and tansy (Tanacetum vulgare), and some Dahlia species.

Side Effects and Warnings

The most frequently reported adverse effects related to English ivy are allergy symptoms, such as allergic contact dermatitis, asthmatic bronchitis, or allergic rhinoconjunctivitis (inflammation of the lining of the nose and the mucous membrane that covers the front of the eye and lines the eyelids). Gardeners and those with frequent exposure to English ivy may have a high risk of sensitization and should wear appropriate protective clothing.

Use cautiously in patients with cancer or taking antineoplastic (anticancer) agents.

Pregnancy and Breastfeeding

English ivy is not recommended in pregnant or breastfeeding women due to a lack of available scientific evidence.

Interactions

Interactions with Drugs

Although not well studied in humans, English ivy may have antimutagenic (anticancer) properties. Caution is advised when combining English ivy with other anticancer agents.

English ivy may have antioxidant activity. Although not well studied in humans, combined use of English ivy and antioxidants may have additive effects.

Interactions with Herbs and Dietary Supplements

Although not well studied in humans, English ivy may have antimutagenic (anticancer) properties. Caution is advised when combining English ivy with other anticancer herbs or supplements.

English ivy may have antioxidant activity. Although not well studied in humans, combined use of English ivy and other herbs or supplements with antioxidants may have additive effects.