Talk to Andrologist on Premature Ejectulation

salaam. my friend is suffering from premature ejectulation issue. in the start of married life, everything was fine. but after 2 months he said his wife's behaviour was changing just because of premature ejectulatio as it was not completing her needs. and now 6 months passed and he said I am very ashamed to ask my wife about intercourse. this issue is affecting their relationship to se extent. he is so worried that their further can be more worst. note: my friend is a very shy person and is unable to visit a doctor or can't even talk clearly on call as well. as a matter of fact I was very hard for him when he shared all this matter to me because I am very close friend. i am asking on his behalf and can only convey message. he googled this matter and found that some drugs can help i.e OAD and Cialis. if it is really helpful then please do tell how and when to use and if not then please guide what to do. age 29. got married 6 months ago. health physically and mentally fine. physical a