I've noticed on tv an ad for a product called sensa for wt lose. Is this safe & does it wk. Also is it safe 2 mix with other non wt lose rx?

Not effective. None of the over-the counter weight loss products are very effective. Many of them only work with a restricted calorie diet, which will work by itself with adequate exercise.
Give this a try. Advantages are works as appetite suppresant, not sure whether the product is natural. Problems does not address lifestyle change and emotional aspect of eating. Diet contributes to 35% of weight loss program, excercise 15% detox - cleaning the body is 50%. Sensa is also expensive $210 for 6 month. It takes liver 6 months to cleanse and detox. Chance for essential muscle loss - due to diet imbalanc.