The VN1R87P gene is a pseudogene classified among the family of vomeronasal receptors. It is important to note that the designation ‘p’ at the end of the gene symbol (VN1R87P) indicates that it is a pseudogene, which means it is a non-functional version of a gene that has lost its original functional capabilities due to mutations.

### 1. Associated Genes
While VN1R87P itself does not have well-established associations with other genes, it is part of a larger family of vomeronasal receptor genes, which includes other VN receptor genes such as VN1R, V1R, and VN1R101. These genes are often clustered in the genome and share similar functions or evolutionary history.

### 2. Aging or Age-related Diseases
Currently, there is limited information specifically linking VN1R87P to aging or age-related diseases directly. As it is a pseudogene, it is less likely to be involved in the biological processes that directly influence aging or longevity. However, research in the broader context of olfactory receptors and sensory perception suggests that functional vomeronasal receptors may be indirectly related to age-related declines in sensory functions. 

### 3. Drug or Drug Classes Interactions
As the VN1R87P gene is a pseudogene, it is not expected to have direct interactions with drugs or drug classes. Typically, interactions are studied in the context of functional genes involved in signaling pathways or in disease processes, and VN1R87P does not currently fit this category.

### 4. Pathways and Biological Processes
VN1R87P, as a pseudogene, is not involved in active biological processes or pathways due to its loss of function. However, members of the vomeronasal receptor gene family, which VN1R87P is associated with, are known to play roles in:
- **Chemical Senses**: Contributing to the detection of pheromones and social communication in many animal species.
- **G protein-coupled receptor signaling pathways**: Functional vomeronasal receptors are involved in neuronal signaling and sensory perception.

### Summary
In summary, VN1R87P is a pseudogene with limited functionality and thus limited direct associations with other genes, age-related diseases, or drug interactions. Its relevance lies more in the context of the vomeronasal receptor gene family than its individual potential physiological roles.