Hi,
Thanks for query,
First you find out the cause why he has low libido,there may be some psychological factor playing role.
If there is no such cause then go for testosterone estimation and there is low level he may go for the treatment.
He can take Viagra after consultation your doctor.
Go for blood testing for diabetes.
Consult sexologist and take advice,
Ok and bye.

Hello,

Thanks for posting your query.

If he is on any medications notify them to your physician since some medications would cause decreased libido.
For Premature ejaculation you can spend more time on foreplay and you can try with start and Squeeze technique, That is at the peak of intercourse you need to remove your penis and control from being ejaculated by pressing with your hand, try it many times during intercourse.

For recovery of libido he should be stress free and should exercise and take healthy foods and be free from tobacco and alcohol.

Hope I have answered your query.

Wishing you good health.

Regards,