Migraine Prevention Formula
En vente sur le marché américain (selon le DSLD)
Dr. Knowles, food supplement from the US market
Migraine Prevention Formula (Dr. Knowles), a food supplement without a usable barcode in DSLD, is described by its US market label, recorded on 21 November 2020. If sold in France, it would be subject to 3 points of French or European regulation, detailed below. The formula sold in Europe under the same name may differ.
Official label, entered on 21 November 2020. Dietary Supplement Label Database (DSLD), US National Institutes of Health: current and off-market labels, retrieved 27 October 2026.
Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (CC0); US market labels.
Displayed label: Official label. Labels on the market are prioritised, followed by the most recent for the same status.
If this product were sold in France
- Conditions légales
Brassica oleracea L.: L'étiquetage doit comporter un avertissement recommandant aux personnes ayant une hypothyroïdie ou un traitement de la thyroïde de consulter leur médecin.
Source: French orders of 9 May 2006 (nutrients), 24 June 2014 (plants) and 26 September 2016 (other substances), consolidated LEGI collection, arrêté du 24 juin 2014, annexe I.
- Conditions légales
Urtica dioica L.: L'étiquetage des compléments alimentaires contenant les parties souterraines de cette plante doit comporter une mention recommandant de prendre conseil auprès d'un professionnel de santé ("Demander l'avis de votre médecin et /ou pharmacien").
Source: French orders of 9 May 2006 (nutrients), 24 June 2014 (plants) and 26 September 2016 (other substances), consolidated LEGI collection, arrêté du 24 juin 2014, annexe I.
- Conditions légales
Aphanizomenon flos-aquae Ralfs ex Bornet & Flahault: Les préparations de cette plante sont seulement autorisées s'il peut être démontré par des rapports d'analyse qu'elles ne contiennent pas de microcystine (< 1µg/g) et d'autres toxines marines.
Source: French orders of 9 May 2006 (nutrients), 24 June 2014 (plants) and 26 September 2016 (other substances), consolidated LEGI collection, arrêté du 24 juin 2014, annexe I.
A daily dose is calculated only if the label gives the maximum number of servings and a unit of mass (or international units for vitamin D). Quantities come from the label, not an analysis. In the United States, the label presents this product as a ‘dietary supplement’; in France, a product of this type may belong to another category (a sports powder, for example), and maximum food supplement doses do not apply to it.
Label composition
- Brand
- Dr. Knowles
- Barcode
- Not provided or invalid in DSLD
- Form
- Tablet
- One serving
- « 2 Extended Release Tablet(s) »
- Servings
- number of servings per day not stated
- Other ingredients (in English, as written)
- Cellulose, Hydroxypropyl Methycellulose, Stearic Acid, Magnesium Stearate, Silica, Pharmaceutical Glaze
| Ingredient (as written, in English) | Category | Per serving |
|---|---|---|
| Riboflavin | Vitamin | 400 mg |
| Magnesium | Mineral | 360 mg |
| Butterbur | Plant | 150 mg |
| Feverfew (Tanacetum parthenium) | Plant | 100 mg |
| Organic Whole Food Blend | Blend | 75 mg |
| Acerola | Plant | not stated |
| Beet (Beta vulgaris) | Plant | not stated |
| Bilberry | Plant | not stated |
| Blueberry | Plant | not stated |
| Broccoli (Brassica oleracea) | Plant | not stated |
| Carrot | Plant | not stated |
| Cauliflower | Plant | not stated |
| Chlorella | Other | not stated |
| Cordyceps | Other | not stated |
| Kale (Brassica oleracea) | Plant | not stated |
| Maitake | Other | not stated |
| Nettle (Urtica dioica) | Plant | not stated |
| Parsley (Petroselinum crispum) | Plant | not stated |
| Reishi (Ganoderma lucidum) | Plant | not stated |
| Shiitake (Lentinula edodes) | Plant | not stated |
| Spinach | Plant | not stated |
| Spirulina (Aphanizomenon flos-aquae) | Plant | not stated |
| Tomato | Plant | not stated |
Dietary Supplement Label Database (DSLD), US National Institutes of Health: current and off-market labels, retrieved 27 October 2026.
Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (CC0); US market labels.
Source
This information reproduces the US label recorded by the US National Institutes of Health (NIH). It does not say whether the product is effective and does not replace advice from a doctor or pharmacist, particularly during pregnancy or when taking medication.
List declared on (register: Dietary Supplement Label Database (DSLD), US National Institutes of Health: current and off-market labels).
List recorded in 2020. Photograph the packaging to check whether it has changed. Photograph the packaging
Brand : Dr. Knowles