Description of medicine: Mercury oxide yellow (Hydrargyri oxydum flavum)
MERCURY YELLOW OXIDE (Hydrargyri oxydum flavum).
Synonyms: Yellow sedimentary mercury, Hydrargyrum oxydatum flavum, Hydrargyrum praecipitatum flavum.
Heavy, fine, yellow, or orange-yellow, odorless powder. It is practically insoluble in water, easily soluble in hydrochloric and nitric acids. It gradually darkens in the light.
Apply in the form of 2% ointment.
Yellow mercury ointment (Unguentum Hydrargyri oxydi flavi).
Synonyms: Unguentum Hydrargyri oxydati flavi, Unguentum ophthamicum.
Contains yellow mercury oxides and liquid paraffin in 2 parts, petroleum jelly 80 parts, anhydrous lanolin 16 parts.
Ointment is prepared ex tempore. It has a yellow-orange color. Let go in a container that protects from the action of light.
Assign for blepharitis, keratitis, conjunctivitis, etc. and with skin diseases (sycosis, seborrhea).
In eye practice, when prescribing a yellow mercury ointment, it is not recommended to take bromine and iodine salts simultaneously inside, due to the possible formation of mercury bromide and iodide in the tear fluid, which have a cauterizing property.
Storage: List B. In well-corked jars of orange glass in a dark place.
Rp .: Ung. Hydrargyri oxydi flavi 10.0
DS Eye Ointment
Rp .: Hydrargyri oxydi flavi 0.6
Ung. Zinci 20.0