The RNU7-113P gene is classified as a processed pseudogene that originates from a small nuclear RNA (snRNA) gene, which is involved in pre-mRNA splicing. Here's a detailed overview based on your requests:

### RNU7-113P Gene Overview
- **Gene Symbol**: RNU7-113P
- **Gene Type**: Pseudogene

### 1. Associations with Other Genes
- Since RNU7-113P is a processed pseudogene, it generally does not have direct protein-coding relationships or functional associations with other genes. However, it is part of the cluster that includes small nuclear RNA (snRNA) genes, which may include other snRNA genes involved in the splicing machinery, such as RNU7, RNU6, and other U-rich snRNAs. A more focused literature search might be necessary for specific gene interactions or regulatory networks.

### 2. Aging and Age-Related Diseases
- As of the latest research data up to October 2023, there is no direct evidence linking RNU7-113P to aging or age-related diseases. However, small nuclear RNAs, in general, are crucial for pre-mRNA processing, and any alterations in RNA processing could impact cellular function over time. Furthermore, aberrations in splicing factors can be implicated in various age-related diseases, including certain cancers and neurodegenerative disorders, but such connections would be indirect, focusing on the broader family of genes involved in RNA processing rather than RNU7-113P alone.

### 3. Drug or Drug Classes Interaction
- Specific drugs or drug classes directly interacting with RNU7-113P are not well-characterized, as it is a pseudogene lacking a functional product. However, drugs targeting RNA processing, splicing factors, or related pathways may indirectly affect the functional context in which RNU7-113P operates or is expressed.

### 4. Pathways and Biological Processes
- While RNU7-113P itself may not have well-defined pathways due to its pseudogene status, it is associated with:
  - **Pre-mRNA Splicing**: snRNA genes, especially U snRNAs, are critical to the splicing process.
  - **Gene Expression Regulation**: The processing and splicing of pre-mRNA are critical for determining the fate of mRNA and regulating gene expression.
  
In summary, while RNU7-113P is an interesting subject of study as a pseudogene, it mostly reflects the functional importance of RNA splicing rather than having a standalone impact on aging, drug interactions, or pathways. Future research could shed more light on its role, particularly in the context of its surrounding gene cluster or in specific cellular conditions.