|  | 
| Web Pages | 
| Benadryl | 
| Full prescribing information from RxList. | 
| Benadryl Hay Fever Treatment | 
| Pfizer Consumer Healthcare offers antihistamine and treatment advice for allergy symptoms including hayfever, hives and rhinitis; site also offers pollen count forecast information. | 
| Unisom | 
| Includes product information and FAQs for this sleep aid, active ingredient diphenhydramine HCl. | 
| Benadryl - Pfizer | 
| Official product website for consumers. |