### FMR1-AS1 Gene Overview
**Gene Symbol**: FMR1-AS1  
**Location**: FMR1 antisense RNA 1 (FMR1-AS1) is located on the X chromosome, specifically in the region adjacent to the FMR1 gene which is known to be associated with Fragile X syndrome.

### Additional Information

1. **Associated Genes**: 
   - **FMR1**: The most closely related gene, as FMR1-AS1 is an antisense non-coding RNA that overlaps with the FMR1 gene, which is crucial for neuronal development and has implications in cognitive functions and Fragile X syndrome.
   - **MIR204**: Overlapping regions of genomic elements suggest potential regulatory interactions with miRNA genes that impact neuronal functions.
   - **Additional lncRNAs**: Other long non-coding RNAs associated with X chromosome regulation and functions may also have interactions with FMR1-AS1.

2. **Aging and Age-Related Diseases**: 
   - While specific studies directly linking FMR1-AS1 to aging or age-related diseases are limited, research suggests that dysregulation of FMR1 due to mutations or epigenetic changes can lead to cognitive decline and neurodegenerative diseases, particularly relevant in aging populations.
   - The FMR1 gene is implicated in age-related cognitive disorders, and by extension, FMR1-AS1 may also play a role by regulating the expression of FMR1 and influencing neuronal health across the lifespan.

3. **Drug Interactions**: 
   - Although specific drugs targeting FMR1-AS1 itself are not well-documented, targeting pathways regulated by FMR1 may have downstream effects. Drugs affecting the mTOR signaling pathway or involved in neuroprotection (such as medications used for Fragile X syndrome) could be of interest, as they may indirectly affect FMR1-AS1 expression or function. 
   - There is a growing interest in small molecule therapies that alter RNA metabolism which could ultimately influence FMR1-AS1 functioning.

4. **Pathways and Biological Processes**:
   - **Regulation of Gene Expression**: As a long non-coding RNA, FMR1-AS1 is involved in the transcriptional regulation of the FMR1 gene, influencing its expression levels.
   - **Neuronal Development**: Involved in pathways relevant to neuronal growth and differentiation due to its close relation to FMR1, which is critical for synaptic function.
   - **RNA Interference and Regulation**: It may be involved in regulatory networks that involve RNA interference mechanisms, potentially affecting post-transcriptional gene regulation.

### Summary
FMR1-AS1 is a long non-coding RNA with a significant role in regulating the expression of the FMR1 gene, closely linked to cognitive development and disorders. Although specific interactions with drugs and pathways are still being explored, it is situated within critical regulatory networks that may have implications for both neurological health and aging-related conditions. Further research is needed to fully elucidate its roles in various biological processes and potential therapeutic targets.