question: Hello doctor, I am 34 years old (weight 78 kg), married, and my height is 5 feet 11 inch. I feel lack of libido during sex. During sex, I do not feel excited enough and do not get erection needed for sex. I use my hand and erotic thoughts to get the erection first and complete the task somehow as we are planning for a child now. However, after four to five days of daily sex, even this process fails and my desire is lost. I take Revital-H daily. I do not take or have taken any other medicine for this problem. Kindly advice.