If you have a relative who is interested and willing to pay a good amount each month however, takes perscribed medicine everyday Is It still possible to obtain life insurance or is there no way in this case?

there are some life insurance companies that state the insured person has to be alive for 2 years after the policy was created after 2 years pass you get full face amount.

It depends on three things:
1. What medication is it?
2. What do they take it for?
3. How well does it work?

The answer is usually "yes." You should work with someone who has a lot of experience handling underwriting issues to get the best end-result.