Drug Prediction using cmap database

Question

[m.shoaib]

Hello, I have performed a GWAS analysis of STAR*D data which is based on the Citalopram drug response. Further, I used MetaXcan tool for the imputation of gene expression profile using GWAS summary stats. Now I have a list of z-score information indicating upregulated and down-regulated genes. Can someone please help, how can I use these expressions values for drug prediction in clue.io website. Actually, I got some results but not sure about their reliability. I am getting a list of drugs with various ranks but it seems ambiguous to me. Can someone help? Thanks