|  | 
| Web Pages | 
| Metoprolol | 
| Information from the RxList. | 
| Metoprolol | 
| Information from the RxList. | 
| Toprol | 
| Metoprolol succinate.  Prescribing information for US residents. | 
| Toprol-XL | 
| Features product and heart disease information for US residents and healthcare professionals | 
| DrugDigest: Metoprolol ( Lopressor ) | 
| Information on dosage, usage, side effects, interactions, and drug comparisons, including generics when available. |