About cards and codes. iTunes Store Gift Cards: 1  When you redeem an iTunes Store Gift Card, the amount of credit on the card is added to your iTunes Store account. 2  You can use it at any time to buy items in the iTunes Store, App Store, or iBooks Store, pay for in-app subscriptions, or make in-app purchases. Tap You can also enter your code manually.. 2  In some countries, you can redeem gift cards using your built-in camera. 3  If you have an iTunes Store Gift Card, enter the 16-digit code, which starts with X, from the back of the card. 4  If you have a promo or content code, enter the code from the back of the card. 5  Tap Redeem.
Cetirizine /sÉËtÉªráµ»ziËn/ (trade names Zirtec, Zyrtec, Reactine) is a second-generation antihistamine used in the treatment of hay fever, allergies, angioedema, and urticaria. It is a major metabolite of hydroxyzine, and a racemic selective H1 receptor antagonist.
Levocetirizine (as levocetirizine dihydrochloride) is a second-generation, non-sedating antihistamine, developed from the second-generation antihistamine cetirizine. Chemically, levocetirizine is the active enantiomer of cetirizine. It is the R-enantiomer of the cetirizine.