A patient with seasonal allergies in Israel is prescribed loratadine (Lorastine®). Which receptor interaction primarily mediates its therapeutic effect? 

A patient prescribed fexofenadine (Telfast®) for chronic urticaria asks why it causes less sedation than diphenhydramine. Which property explains this? 

A 20-year-old patient presents with aspirin overdose 30 minutes after

ingestion and is hemodynamically stable. What is the most appropriate

initial intervention?

Which NSAID exhibits greater selectivity for COX-2 inhibition over COX-1, making it suitable for acute migraine treatment?

A patient with coronary artery disease is prescribed low-dose aspirin. What mechanism explains its prolonged antiplatelet effect? 

Aspirin irreversibly inhibits synthesis of which mediator in platelets, an effect not produced by selective COX-2 inhibitors?

Which characteristic distinguishes second-generation antihistamines from first-generation agents? 

A drug that selectively blocks 5-lipoxygenase would most directly reduce: 

Which receptor mediates histamine-induced gastric acid secretion? 

Selective COX-2

inhibitors exert their primary anti-inflammatory effect by: