The term sildenafil citrate is identified in base64 scheme by the sequence c2lsZGVuYWZpbCBjaXRyYXRl, while the MD5 signature is equal to e4beee34fe923f09b6dcc087b192e9ab. The ASCII encoding of sildenafil citrate in hexadecimal notation is 73696c64656e6166696c2063697472617465.