Calamine

Calamine
A puddle of calamine lotion next to a pink plastic bottle
Combination of
zinc oxideastringent
ferric oxideantipruritic
Clinical data
PronunciationKAL-ə-mine
Other namesCalamine lotion
License data
Routes of
administration
Topical
ATC code
Legal status
Legal status
Identifiers
CAS Number
PubChem CID
ChemSpider
KEGG
ChEMBL
Chemical and physical data
3D model (JSmol)
  • [O-2].[O-2].[O-2].[O-2].[Fe+3].[Fe+3].[Zn+2]
  • InChI=1S/2Fe.4O.Zn/q2*+3;4*-2;+2
  • Key:CPYIZQLXMGRKSW-UHFFFAOYSA-N

Calamine, also known as calamine lotion, is a medication made from a combination of powdered zinc oxide and 0.5% ferric oxide (Fe2O3) that is used to treat mild itching. It benefits sunburn, insect bites, allergenic irritation, and other mild skin conditions, and may also help dry out secretions resulting from skin irritation. Its name comes from calamine, a historic name for the zinc ores smithsonite and hemimorphite.

Calamine is applied to the skin as a cream or lotion. The lotion has been in use since 1500 BC and is now produced with additional ingredients such as phenol and calcium hydroxide.

Calamine is on the World Health Organization's List of Essential Medicines. It is sold over the counter as a generic medication. Side effects may include skin irritation. It is considered to be safe in pregnancy.