Can I take it for over a year? I need to lose at least 150 pounds.

Hi,
I am not a Doctor, nor a Professional in this area.
http://healthlivingnews.blogspot.com/
The above link gives some good info, from a Registered Dietitian about weight loss pills; saying that most of them just simply don't work.
I am not familiar with zetacaps, but would not suggest taking any diet pill for a year! Your best advice would be from a Doctor.
Have you considered Calories? A normal person needs only 2,000 calories a day (24 hours) to not gain, nor lose weight.
You migh think about buying a small paper-back Calorie book, (or use calorie counters online) to see how many calories you eat/drink perday.
Cutting back on calories will let you lose weight naturally, over a period.
I do wish you the best, and good luck. There is also Weight Watchers, if in your local area, and they do have good results.

Obesity / Weight Gain

Obesity is excessive weight gain and usually classified by a person being at least 20% heavier than the midpoint of their weight range on a standard height-weight table. Obesity is now a major problem in the industrialized nation, with America, Britain, Canada and Australia leading the pack.

As age progresses, metabolic rates lessen, which is why obesity is more prevalent in the elderly than the young. Obesity across race varies slightly, with obesity in Hispanics higher than white or black. Obesity however is much more common among Hispanic and black women than their white counterparts According to the Merck Manual, about 60% of middle-age black women are obese compared with 33% of white women.

Socio-economic factors play an important role in the development of obesity. For example, American women from poorer groups have a higher incidence of obesity than the more wealthy. Binge eating, emotional disorders peer pressure and stress may all play a part in developing bad eating habits. Rarely, hormonal irregularies and damage to the hypothalamus may result in obesity.

Excessive fat accumulates, mostly in the subcutaneous tissues, and is usually the result of a person consuming more calories than they are expending. Processed refined carbohydrates are the key culprits, with bread, sugar, chocolate, pastas, breakfast cereals and pastries being eaten in inordinate amounts. The western refined diet, as we have often remarked, is doing us in, one pepperoni pizza at a time. A change of diet and lifestyle usually solved the problem, as well as a change of environment, where the person may modify their eating and exercise habits, without being tied in to the old patterns ( addictions )
The chief problems with obesity are the associated health problems which develop, accumulation of excess fat below the diaphragm and in the chest wall may put pressure on the lungs, causing difficulty in breathing and shortness of breath, even with minimal exertion. The difficulties in breathing may seriously interfere with sleep, causing momentary cessation of breathing leading to daytime sleepiness and other complications.

Obesity may also cause back problems and stress on the joints. Skin disorders are particularly common. Swelling of the feet and ankles is also routine, as the body attempts to rid itself of excess fluids.
The maintenance of obesity is primarily an emotional problem caused by patterning. These patterns, which we deal with, need to be addressed and a new routine adhered to. Counselling in this regard is extremely important, but a person must be co-operative in wanting to change their diet and lifestyle.

Fad diets rarely work since the underlying emotional patterning is almost never addressed and changed, paving the way for a return to the old eating and lifestyle habits.

Those wishing to change for the better are advised the following,
DIET: COMMENCE THE FOOD FOR THOUGHT LIFESTYLE REGIMEN, ensuring adherence especially to the Foods to avoid section
RESTORE NUTRITIENT BALANCE: COMMENCE THE BASIC SUPPLEMENT PROGRAM
TIPS:Reduce stressful environment. This might well mean a change of employment and friends
Try to change the patterns and habits of your daily routine and make the new regimes fun and enjoyable, especially the exercise part
EXERCISE: A proper program needs to be set up by a qualified instructor to consider any ancillary health problems cause by a person`s obesity. This exercise regimen needs to be carried out consistently, along with the appropriate diet, supplementation and 2 litres per day of fresh, clean water. Try to associate with those who are encouraging in your effects and non-condemnatory