It is excellent that you are working out. Yes revital is safe as long as you are not planning a pregnancy. If you plan to get pregnant do not take anything except folic acid. If you are feeling tired.. check your diet as well. Some amount of aches n pains n fatigue is normal when u start working out and they will get better with time. But as your muscle mass is increasing, consider adding protein to diet. All the best and keep healthy. If you need a specific diet plan, look online for diet charts or consult if required.

It's a multivitamin tablet... No harm in taking once daily