The SNORA108 gene (also known as small nucleolar RNA, HBII-520) is a member of the C/D box small nucleolar RNA (snoRNA) family. These RNAs are primarily involved in the modification and processing of ribosomal RNA (rRNA), and they have essential roles in the biogenesis of ribosomes. Here’s a detailed view of SNORA108, addressing your specific requests:

### 1. Associated Genes
SNORA108 has been associated with several other genes, particularly those involved in ribosome biogenesis and other snoRNAs. While specific associations not mentioned in NCBI or UniProt summaries may be limited in available literature, general associations might include:
- SNORD116 (a related snoRNA)
- Other members of the C/D box snoRNA family.

### 2. Aging and Age-Related Diseases
Research into specific roles of SNORA108 in aging and age-related diseases is limited and may not be well-characterized. However, small nucleolar RNAs, including SNORA108, have been implicated in cellular processes that can influence aging, such as:
- Ribosomal biogenesis: Alterations in ribosome production and function are known to impact cellular senescence and organismal lifespan.
- Regulation of gene expression: Changes in snoRNA expression patterns have been observed in age-related contexts and could potentially influence disease processes like cancer.

### 3. Drug Interactions
As of the current literature (up to October 2023), no specific drugs or drug classes are directly reported to interact with the SNORA108 gene. However, research is ongoing into therapeutics that may target snoRNA functions in general, particularly in diseases where ribosome biogenesis is disrupted. 

### 4. Pathways and Biological Processes
SNORA108 is primarily involved in the following pathways and biological processes:
- **Ribosome Biogenesis**: SNORA108 is thought to play a role in the modification of rRNA, contributing to the assembly and function of ribosomes which are crucial for protein synthesis.
- **RNA Processing**: As a snoRNA, SNORA108 is involved in the methylation of rRNA, a critical step in RNA processing.
- **Cellular Response to Stress**: Although not directly characterized, snoRNAs often play roles in cellular stress responses due to their fundamental functions in the ribosome assembly.

### Conclusion
The SNORA108 gene is an important component of nucleolar RNA function, specifically in ribosome assembly and modification. While there are no direct drug interactions reported, its general roles in ribosome biogenesis and potential implications in aging and diseases make it a consideration for further research in these areas. Understanding the detailed interactions and pathways involving SNORA108 could provide insights into novel therapeutic strategies for age-related diseases and other health conditions.