> ## Documentation Index > Fetch the complete documentation index at: https://docs.catalog.igvf.org/llms.txt > Use this file to discover all available pages before exploring further. # Drugs Variants > Retrieve variants associated with the query drugs from pharmGKB. Set verbose = true to retrieve full info on the variants. Either drug_id or drug_name is required. Example: drug_id = PA448497, drug_name = aspirin, pmid = 20824505, phenotype_categories = Toxicity. The limit parameter controls the page size and can not exceed 100. Pagination is 0-based. ## OpenAPI ````yaml /openapi/catalog-dev.openapi.json get /drugs/variants openapi: 3.0.3 info: title: IGVF Catalog - Development description: >- Development IGVF Catalog OpenAPI compliant REST API built using tRPC with Express. Our database uses 0-based, half-open coordinates for genomic coordinates in the GRCh38 (human) and GRCm39 (mouse) reference genomes. Data is licensed under the Creative Commons license and the software is licensed under the MIT license. version: 1.2.0 - DEV servers: - url: https://catalog-api-dev.demo.igvf.org/api security: [] externalDocs: url: https://api-dev.catalog.igvf.org/openapi paths: /drugs/variants: get: summary: Drugs Variants description: |- Retrieve variants associated with the query drugs from pharmGKB. Set verbose = true to retrieve full info on the variants. Either drug_id or drug_name is required. Example: drug_id = PA448497, drug_name = aspirin, pmid = 20824505, phenotype_categories = Toxicity. The limit parameter controls the page size and can not exceed 100. Pagination is 0-based. operationId: variantsFromDrugs parameters: - name: drug_id in: query required: false schema: type: string - name: drug_name in: query required: false schema: type: string - name: phenotype_categories in: query required: false schema: type: string enum: - Dosage - Efficacy - Metabolism/PK - Other - PD - Toxicity - name: pmid in: query required: false schema: type: string - name: organism in: query required: false schema: type: string enum: - Homo sapiens default: Homo sapiens - name: verbose in: query required: false schema: type: string enum: - 'true' - 'false' default: 'false' - name: page in: query required: false schema: type: number default: 0 - name: limit in: query required: false schema: type: number responses: '200': description: Successful response content: application/json: schema: type: array items: type: object properties: sequence_variant: anyOf: - type: string - type: object properties: _id: type: string chr: type: string pos: type: number rsid: type: array items: type: string nullable: true ref: type: string alt: type: string spdi: type: string hgvs: type: string ca_id: type: string nullable: true strain: type: array items: type: string nullable: true qual: type: string nullable: true files_filesets: type: string nullable: true annotations: type: object properties: bravo_af: type: number nullable: true gnomad_af_total: type: number nullable: true gnomad_af_afr: type: number nullable: true gnomad_af_afr_female: type: number nullable: true gnomad_af_afr_male: type: number nullable: true gnomad_af_ami: type: number nullable: true gnomad_af_ami_female: type: number nullable: true gnomad_af_ami_male: type: number nullable: true gnomad_af_amr: type: number nullable: true gnomad_af_amr_female: type: number nullable: true gnomad_af_amr_male: type: number nullable: true gnomad_af_asj: type: number nullable: true gnomad_af_asj_female: type: number nullable: true gnomad_af_asj_male: type: number nullable: true gnomad_af_eas: type: number nullable: true gnomad_af_eas_female: type: number nullable: true gnomad_af_eas_male: type: number nullable: true gnomad_af_female: type: number nullable: true gnomad_af_fin: type: number nullable: true gnomad_af_fin_female: type: number nullable: true gnomad_af_fin_male: type: number nullable: true gnomad_af_male: type: number nullable: true gnomad_af_nfe: type: number nullable: true gnomad_af_nfe_female: type: number nullable: true gnomad_af_nfe_male: type: number nullable: true gnomad_af_oth: type: number nullable: true gnomad_af_oth_female: type: number nullable: true gnomad_af_oth_male: type: number nullable: true gnomad_af_sas: type: number nullable: true gnomad_af_sas_male: type: number nullable: true gnomad_af_sas_female: type: number nullable: true gnomad_af_raw: type: number nullable: true GENCODE_category: type: string nullable: true funseq_description: type: string nullable: true additionalProperties: false nullable: true source: type: string source_url: type: string organism: type: string nullable: true required: - _id - chr - pos - ref - alt - annotations - source - source_url - organism additionalProperties: false _to: type: string gene_symbol: type: array items: type: string pmid: type: string study_parameters: type: array items: type: object properties: study_parameter_id: type: string study_type: type: string study_cases: type: string study_controls: type: string p-value: type: string biogeographical_groups: type: string required: - study_parameter_id additionalProperties: false phenotype_categories: type: array items: type: string source: type: string source_url: type: string name: type: string required: - _to - source - source_url - name additionalProperties: false default: $ref: '#/components/responses/error' components: responses: error: description: Error response content: application/json: schema: type: object properties: message: type: string code: type: string issues: type: array items: type: object properties: message: type: string required: - message additionalProperties: false required: - message - code additionalProperties: false ````