<s>[INST] hi i  m  hammad from pakistan. i hav problem of short and small penis with premature ejaculation problem.I m also patient of depression and using exapro 20mg from 5 months recommended by phsycatrist.I offen hav problem of constipation and stomach cannot properly work [/INST] Hello, Anxiety is a major cause for premature ejaculation. If symptoms persists better to consult a urologist and he will direct you accordingly. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr. Shinas Hussain </s>