Two very similar versions of this spell appear in Egyptain Secrets.
From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:
For the Cough of Infants.
Take violet roots, powdered licorice root, of each one-half of an ounce, one drachm brown bithynia root, a pinch of saffron, four ounces candy sugar (white). All these articles pound to a fine powder and mix well together. Give as much as will cover the point of a knife, whenever required.
From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:
For a Cough.
Take violet root, pounded licorice of each one-half an ounce, brown bethynia roots, four drachms, point of a knife full of saffron, four ounces of white rock candy. All these pounded fine, and mix well together and the point of a knife full given to the patient whenever required will be beneficent.
The grimoire Egyptian Secrets of Albertus Magnus lists this spell.