Drugs
by Nada Fayeq

1. H2 blockers
1.1. Cimetidine
1.2. Famotidine
1.3. Rantidine
1.4. Nizatidine
2. H3 blocker
2.1. Tripolisant
3. H1 blocker Antihistaminic
3.1. 1st generation
3.1.1. Cyclizine
3.1.2. Promethazine
3.1.3. Meclizine
3.1.4. Azelastin
3.1.5. Cyproheptadine
3.1.6. Chloropheniramine
3.1.7. Diphenhydramine
3.1.8. Dimenhydrinate
3.2. 2nd generation
3.2.1. Loratidine
3.2.2. Centrizine
3.2.3. Astimazole
3.2.4. Terfenadine
3.2.5. Desloratidine
3.3. Third generation
3.3.1. Fexofenadine
3.3.2. Desloratidine