Clearly sedation is unwanted

Cetirizine non sedating antihistamine

In some embodiments, an isomer of cetirizine may be used. Acute urticaria may arise from a food allergy e. Warnings Talk to your doctor if you use the bronchodilator theophylline. As such, cetirizine and its isomers and hydroxyzine are similar in structure. Also as used herein, a patient or individual means a human or another mammal.

Diphenhydramine injection is commonly used together with blood transfusion to prevent acute allergic reactions to blood or plasma. In some embodiments, the injectable formulation is substantially free any additional components. Epinephrine is the first-line drug to be given to a patient having an acute allergic reaction including anaphylaxis. Avoid taking Zyrtec with alcohol or other medicines that could cause drowsiness. In rare cases, cetirizine has been shown to cause bronchospasms.

As used herein, an immediate-release oral dosage form comprises no added release-retarding excipients to extend the rate of release. These factors may have prevented scientists from trying to make cetirizine, its salts, polymorphs, and its isomers i. The majority of these reactions are minor, and fatalities are rare.

Suitable tonicity agents

Specifically, methods of treating acute urticaria or angioedema associated with an acute allergic reaction are disclosed. Suitable tonicity agents include glycerin, lactose, mannitol, dextrose, sodium chloride, sodium sulfate, sorbitol and the like. Other concentrations of NaCl resulted in either undesirable hypertonic or hypotonic solutions.

Specifically methods of treating acute urticaria

An alpha-receptor agonist, epinephrine reverses hypotension. Several known factors have prevented scientists from trying to make cetirizine, its salts, polymorphs, and its isomers i. Low molecular weight contrast causes fewer and less severe reactions.