Question 1

How does Nigella arvensis work in the body?

Accepted Answer

Nigella arvensis works primarily through thymoquinone, a bioactive compound with potent antioxidant and anti-inflammatory properties. This compound modulates immune responses by inhibiting inflammatory mediators such as prostaglandins and leukotrienes. Additionally, the plant contains saponins and alkaloids which contribute to its anthelmintic activity, helping to expel intestinal parasites. Evidence Level B indicates these mechanisms support its traditional use for respiratory and digestive ailments.

Question 2

Does Nigella arvensis interact with medications?

Accepted Answer

Nigella arvensis may interact with anticoagulant and antihypertensive drugs. Thymoquinone can inhibit platelet aggregation, potentially increasing bleeding risks when combined with warfarin or aspirin. It may also lower blood pressure, compounding the effects of antihypertensive medications. Because it affects liver enzymes, it could alter the metabolism of various pharmaceuticals. Patients on medication should seek medical advice before use. Evidence Level C is based on pharmacological properties.

Question 3

What is the recommended dosage for Nigella arvensis seeds?

Accepted Answer

The standard adult dosage for Nigella arvensis is 1 to 2 grams of dried seeds daily. The seeds are typically crushed and steeped in hot water to make a tea for digestive or respiratory support. This dosage is derived from Iranian traditional medicine practices. Users should start with the lower end of the range to assess tolerance, as higher doses may cause mild gastrointestinal upset. Evidence Level B supports this traditional dosing.

Question 4

Is Nigella arvensis safe during pregnancy?

Accepted Answer

No, Nigella arvensis is considered unsafe during pregnancy. Traditional usage and pharmacological evidence suggest that therapeutic doses can stimulate uterine contractions, posing a risk of miscarriage or premature labor. Pregnant women should strictly avoid large doses of this herb. While small culinary amounts might be tolerated, medicinal use is contraindicated. Evidence Level B supports this safety warning based on uterine stimulant properties.

Question 5

What is Nigella arvensis used for in traditional medicine?

Accepted Answer

Nigella arvensis is used in Iranian traditional medicine (Unani-Tibb) primarily for digestive and respiratory conditions. It acts as a carminative to relieve bloating and gas, and as a bronchodilator for coughs and respiratory infections. The herb is also employed topically for skin conditions and internally for worm infestations. Evidence Level B supports these uses based on phytochemical analysis and historical application.

Nigella Persian

Sources et citations

Résumé

Contexte

Usages traditionnels

Composés actifs

Mécanisme d'action

Preuves cliniques

Sécurité et effets indésirables

Grossesse et allaitement

Synthèse des preuves

Sources PubMed

Sources gouvernementales