<s>[INST] sir    I am 35 years old and recently got married .i have erectile dysfunctional and premature ejaculation problem. I met the urologist he suggested me some medicine that is Cavarta, sustinex and LR Zin . Can i take it for life long or anyother option to cure this problem [/INST] Hello dear, Thank you for your contact to Chat Doctor. I read and understand your concern. I am Chat Doctor answering your concern. You should first search for the cause of the erectile dysfunction. In some cause regular lifelong taking of medicine is not advised.A bit in some vascular causes erectile dysfunction lifelong medication can be advised. Please take the medication only when orgasm is necessary. Please do not take it when not necessary. Also do not do overdose of the Chat Doctor. I will be happy to answer your further concern on bit.ly/ </s>