|Pyrithione Zinc||10,3 mg/mL|
|Tar BP||3,09 mg/mL,|
|Cade Oil BPC||3,09 mg/mL,|
|Coal Tar Solution BP||1,03 mg/mL|
|Arachis oil extract of Crude Coal Tar
|FOR EXTERNAL USE ONLY|
|KEEP OUT OF REACH OF CHILDREN|
Extract from Martindale 29th Ed.; 930.
Pyrithione Zinc (BAN, USAN, rINN)
Pyrithione zinc has bacteriostatic and fungistatic properties. It is used similarly to selenium sulphide in the control of seborrhoeic dermatitis and dandruff. It is an ingredient of some proprietrary shampoos.
ADVERSE EFFECTS: Peripheral neuritis with parasthesia and muscle weakness in one patient was associated with the prolonged use of a shampoo containing pyrithione zinc 2%. The muscle weakness had disappeared 3 months after stopping the shampoo and 2 years later the paraesthesia had improved by about 75%.J.E. Beck (letter), Lancet, 1978, I, 444.