1 In dogs, cetirizine is used primarily to treat allergic symptoms and itchy skin e.g from allergic dermatitis and atopy in dogs.  In cats, cetirizine is used to treat non-responsive chronic inflammation of the nose and sinuses (rhinosinusitis). It is also used to treat pruritus (itching) in cats.
Mother of pearl, also called nacre, is an iridescent layer of material that forms the shell lining of many mollusks. Pearl oysters and abalone are both sources of this substance, which is widely used as an inlay in jewelry, furniture, and musical instruments.
pearl. 1  a smooth, hard, usually white or bluish-gray body of varied but usually roundish shape that is an abnormal nacreous growth within the shell of some oysters and certain other bivalve mollusks and forms around a grain of sand, a parasite, or some other foreign object: it is used as a gem. 2  mother-of-pearl.