For 43 yr old male with high cholesterol, is taking co q 10 plus omega3 good and can it be taken for lifetime or for a specific time?

Probably worthless: Your best defense against cholesterol problems is diet and exercise. The last 3 out of 3 studies on omega-3's, including a deeply troubling on on the inuit / eskimo peoples themselves, showed no benefit. Coenzyme q is tooted for all heart disease because there is one rare genetic defect for which it's effective. Man up, and comply with instructions from an informed physician.

No: Unfortunately omegas lower triglycerides, little effect on cholesterol.