Clinical Allergy By Natural Clinician Overview & Drug Interactions

Quercetin is a type of flavonoid, which is a class of compounds found in a wide variety of plants and foods. It is purported to have a number of health benefits such as anti-inflammatory, antioxidant, and immune-boosting effects. Studies suggest it may also help to reduce the risk of certain chronic diseases, such as heart disease. In addition, quercetin may have anti-allergic properties and may be helpful in the treatment of allergies and asthma. It is a popular dietary supplement worldwide and is often included in products that contain antioxidants or various vitamins/minerals. Its wide range of potential health benefits mean that it could potentiate the effects of other drugs (e.g., anti-hypertensives), which is why there are an abundant number of potential interactions listed for quercetin.

Grapes are widely grown and cultivated for a variety of uses such as for food and beverage making (e.g., wine). They also have a long history of use in traditional medicine. The fruit and skin of grapes contain various compounds that are believed to have health benefits, including antioxidants such as resveratrol and flavonoids. These compounds may help to protect cells from damage and are purported to reduce the risk of certain chronic diseases. Grapes and grape products may also have anti-inflammatory properties, which may help to reduce inflammation in the body and potentially improve symptoms of certain conditions. Grape seed extracts are also commonly used as a dietary supplement and are often standardized according to the content of polyphenols or proanthocyanidins.

Devil's claw (Harpagophytum procumbens) is a plant native to southern Africa and a member of the Pedaliaceae family. The plant has large, lobed leaves and produces small, purple flowers. It gets its name from the small, hard, black seeds that are contained within the plant's fruit, which are shaped like small claws or hooks. In traditional medicine, devil's claw is purported to have anti-inflammatory and analgesic (pain-relieving) properties. It has been used to treat a variety of health conditions, including arthritis, joint pain, and lower back pain.

Astragalus is a genus of plants native to Asia and Northern Africa, and is known for its small, yellow or purple flowers and its long, tapering root. In traditional medicine, astragalus has been used to boost the immune system and treat a variety of conditions, including colds, flu, and upper respiratory infections. It is commonly referred to as an 'adaptogen', which are theorized to help the body resist stress.

Bromelain is a group of proteolytic enzymes derived from pineapples. It has been traditionally used for its anti-inflammatory and protein-digesting properties. Some research suggests it may have potential benefits for conditions such as allergic rhinitis, burns, cancer, diabetic foot ulcers, and postoperative pain, among others. However, the evidence for its effectiveness in these areas is lacking, and more research is needed. It is important to note that bromelain should not be confused with other protein-digesting enzymes. Pregnant and lactating individuals should avoid using bromelain due to insufficient information about its safety in these populations.

Stinging nettle (Urtica dioica) is a perennial flowering plant that belongs to the Urticaceae family. It is native to Europe, Asia, and North America, and is characterized by its green leaves and small, greenish-white flowers. Stinging nettle has small, stinging hairs on its leaves and stems, which can cause a painful rash when touched. The leaves and the roots of stinging nettle have been used in traditional medicine to treat a variety of conditions such as joint pain, diabetes, enlarged prostate, anemia, and urinary tract infections. It is also used as a diuretic and to help with allergies as it contains the compound quercetin. The leaves and stems of the plant are edible and can be consumed as a vegetable, usually after boiling or steaming to remove the stinging hairs, as the plant is rich in vitamins, minerals, and antioxidants.

Milk thistle (Silybum marianum) is a plant belonging to the aster family (Asteraceae). It is native to the Mediterranean region and is widely cultivated in many parts of the world. The plant is known for its milk-white veins on the leaves, which gives it its name. Milk thistle has a long history of use in traditional medicine, and is extremely popular as a dietary supplement, making it one of the most well-known plants in the world. It is purported to have liver-protectant effects and has been used to treat liver disorders such as hepatitis and cirrhosis. It has also been used to treat gallbladder problems and high cholesterol. While there are a number of compounds in milk thistle, one of the active constituents, silymarin, is thought to be responsible for many of its effects, and dietary supplements often report using a standardized amount (generally 70% to 80% silymarin in extracts).

Thyme (Thymus vulgaris) is a perennial herb that has been used medicinally for centuries. It is native to the Mediterranean region and has a distinctive aroma. Thyme is often used in cooking, but it also purported to have a number of potential health benefits when taken as a supplement. It has been used in traditional medicine for a variety of conditions, including gastrointestinal problems, respiratory conditions, and for its antimicrobial effects.

Fennel is a plant species in the carrot family and native to the Mediterranean region. Fennell seeds are often used as a spice, and other parts as food. Fennel has a distinctive, sweet, licorice-like flavor and is often used in cooking to add flavor to dishes such as sauces, salads, and baked goods. It is used in traditional medicine as a good source of vitamins and minerals, such as potassium, beta-carotene and vitamin C. It has also been used to treat a variety of conditions, including digestive issues, respiratory problems, and skin conditions.

Bitter orange, also known as Seville orange or sour orange, is a type of citrus fruit that is native to Southeast Asia. It is closely related to the sweet orange, but has a much more bitter and sour flavor. Bitter orange is a rich source of vitamin C and other nutrients, including calcium, potassium, and folate. It is also a good source of antioxidants. Bitter orange has been used in traditional medicine for a number of purported health benefits, including improved digestion, improved immune function, and reduced inflammation. Bitter orange also contains synephrine, a compound similar in structure to ephedrine. Synephrine is thought to have stimulant effects and is often used to increase energy, improve athletic performance, and as a weight loss supplement. When used as a dietary supplement, the dosage is typically standardized by its synephrine content.