Doxepin (Sinequan, Silenor)
- first-gen dibenzoxepin tricyclic H1RA
Olopatadine (Patanol, Pataday)
- second-gen dibenzoxepin tricyclic H1RA
Diphenhydramine
- Ethanolamine H1RA
Pyrilamine
- Ethylenediamine H1RA
Chlorpheniramine
- First-gen alkylamine H1RA
Acrivastine
- Second-gen alkylamine H1RA
Hydroxyzine (Atarax, Vistaril)
- First-gen piperazine H1RA
Cetirizine (Zyrtec)
- Second-gen piperazine H1RA
, Promethazine (Phenargan)
- Phenothiazine H1RA
Cyproheptadine
- First-gen piperidine H1RA
Loratadine
- Second-gen piperidine H1RA
Fexofenadine (Allegra)
- Second-gen piperidine H1RA
Azelastine
- Second-gen H1RA
Emedastine
- Second-gen H1RA
Epinastine
- Second-gen H1RA
Albuterol (ProAir HFA)
- SABA
Levalbuterol (Xopenex HFA)
- SABA