We do not recommend the use of most weight loss aids. The majority of them don't work and if you do get lucky enough to lose weight on them, most likely you will gain it all back (+ some) as soon as you stop taking the pills. For the most part, they are a waste of $.
Alli is the only OTC weight loss aid that is approved as both safe and effective by the FDA.
Without knowing what meds you take, it would be impossible to say whether or not the products you mentioned would conflict with your current med.
The safest, most effective, permanent weight loss can be achieved via healthy diet and moderate exercise, which will allow you to make actual "lifestyle" changes, that you can sustain for the long haul.
I might also recommend that you get an appointment to have your thyroid levels tested. Hypothyroidism can contribute to/cause high cholesterol and anxiety.