Super Strength Oil of Oregano 45 mg [Discontinued] by The Vitamin Shoppe

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Acne. Although there has been interest in using topical oregano oil for acne, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Asthma. Although there has been interest in using oral oregano for asthma, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Bronchitis. Although there has been interest in using oral oregano for bronchitis, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Canker sores. Although there has been interest in using topical oregano oil for canker sores, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Cough. Although there has been interest in using oral oregano for cough, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Dandruff. Although there has been interest in using topical oregano oil for dandruff, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Diabetes. Although there has been interest in using oral oregano for diabetes, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Dysmenorrhea. Although there has been interest in using oral oregano for dysmenorrhea, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Dyspepsia. Although there has been interest in using oral oregano for dyspepsia, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Gingivitis. Although there has been interest in using topical oregano oil for gingivitis, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Headache. Although there has been interest in using topical oregano oil for headache, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Insect repellent. Although there has been interest in using topical oregano oil as an insect repellent, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Intestinal parasite infection. It is unclear if oral oregano is beneficial in patients with intestinal parasite infections. Details: In one small, uncontrolled study, taking a specific emulsified oregano leaf oil product (ADP, Biotics Research Corporation) 200 mg orally three times daily with meals for 6 weeks resulted in eradication of Blastocystis hominis, Entamoeba hartmanni, and Endolimax nana from the stool in 10 of 13 patients (6878). The clinical significance of this is unclear since the Centers for Disease Control (CDC) considers Entamoeba hartmanni and Endolimax nana to be non-pathogenic, while blastocystosis caused by Blastocystis hominis is usually self-limiting and does not require treatment.
• Pain (acute). Although there has been interest in using topical oregano oil for the relief of acute pain, including joint and muscle pain, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Psoriasis. Although there has been interest in using topical oregano oil for psoriasis, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Rhinosinusitis. Although there has been interest in using oral oregano for rhinosinusitis, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Seborrheic dermatitis. Although there has been interest in using topical oregano oil for seborrheic dermatitis, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Tinea capitis. Although there has been interest in using topical oregano oil for tinea capitis, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Tinea corporis. Although there has been interest in using topical oregano oil for tinea corporis, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Tinea pedis. Although there has been interest in using topical oregano oil for tinea pedis, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Toothache. Although there has been interest in using topical oregano oil for toothache, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Upper respiratory tract infection (URTI). Although there has been interest in using oral oregano for URTIs, such as the common cold and influenza, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Urinary tract infections (UTIs). Although there has been interest in using oral oregano for UTIs, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Varicose veins. Although there has been interest in using topical oregano oil for varicose veins, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Warts. Although there has been interest in using topical oregano oil for warts, there is insufficient reliable information about the clinical effects of oregano for this purpose.
• Wound healing. It is unclear if topical oregano is beneficial for improving healing or preventing infections in people with skin wounds. Details: One small clinical trial shows that applying an ointment containing a 3% concentration of the water-soluble fraction of the oregano plant twice daily for 10-14 days after minor dermatological surgery might reduce infection rates and improve scar formation when compared with petrolatum ointment (67348). More evidence is needed to rate oregano for these uses.

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LIKELY SAFE ...when used orally in amounts commonly found in foods. Oregano leaf and oil have Generally Recognized as Safe (GRAS) status in the US (4912). There is insufficient reliable information available about the safety of oregano when used orally in amounts greater than those found in food. There is also insufficient reliable information available about the safety of oregano when used topically. Oregano oil in concentrations of greater than 1% may be irritating when applied to mucous membranes (67348,88188).

PREGNANCY: POSSIBLY UNSAFE
when used orally in medicinal amounts. Oregano is thought to have abortifacient and emmenagogue effects (19,7122,19104).

LACTATION:
There is insufficient reliable information available about the safety of oregano when used in medicinal amounts; avoid amounts greater than those found in food.

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ANTICOAGULANT/ANTIPLATELET DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, oregano might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.  Details In vitro research shows that aristolochic acid isolated from oregano leaves has antithrombin activity (67164). It has also been reported that oregano oil inhibits arachidonic acid-induced, and ADP-induced, platelet aggregation (49445).

ANTIDIABETES DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, oregano might increase the risk for hypoglycemia when taken with antidiabetes drugs.  Details In vitro and animal research shows that oregano extracts might lower blood glucose levels (67191,67204,110122).

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General ...Orally, oregano is well tolerated when used in amounts typically found in foods. There is currently a limited amount of information available about the safety of oregano when used in larger amounts as medicine.
Most Common Adverse Effects:
Orally: Gastrointestinal upset.
Topically: Dermatitis in sensitive individuals.
Serious Adverse Effects (Rare):
Orally: Systemic allergic reactions, including anaphylaxis, in sensitive individuals.

Dermatologic ...Oregano has been reported to cause allergic contact dermatitis (46902). Topically, oregano oil in concentrations of greater than 1% has been reported to cause irritation when applied to mucous membranes (67348,88188).

Gastrointestinal ...Orally, large amounts of oregano can cause gastrointestinal upset. Concentrated, non-emulsified oil of oregano can cause localized irritation of the gastrointestinal tract (6878).

Immunologic ...Systemic allergic reactions have been reported with oregano. A 45-year-old male developed pruritus, respiratory difficulty, hypotension, swelling of the lips and tongue, and facial edema after ingesting pizza seasoned with oregano. He had 2 similar episodes after ingesting foods seasoned with thyme, another member of the Lamiaceae family. He did not react to similar foods without the seasoning, and he had positive skin tests to plants of the Lamiaceae family (3705).

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