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Nurse Milli, RN
Nurse Milli, RN, Nurse (RN)
Category: Health
Satisfied Customers: 4139
Experience:  20 years experience in many areas of Nursing. Both Hospital and Private Practice experience.
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Id like to know how they work as far as energy levels is concened

Resolved Question:

my doctor is discussing / diet pills for me. I'd like to know how they work as far as energy levels is concened. I've been told they energize you for several hours and then you crash. If his is true how long do you have before the crash. I work a 12hr day will this happen before the end of the work day. Any other information good or bad would be appreciated.
Submitted: 6 years ago.
Category: Health
Expert:  Nurse Milli, RN replied 6 years ago.

Hello and thanks for the question. I will be happy to help you.


Most diet pills (like Adipex/Phentermine) will stimulate the central nervous system. By stimulating the CNS, some patients will experience increase in energy level (sometimes to the point of feeling nervous or jittery), dry mouth, increased blood pressure, and rapid heartbeat. Depending on the drug you take will depend on that particular drugs' duration (how long that particular drug will work). Most diet pills will work for the biggest part of the day, and if the medication causes you to feel jittery or nervous, you will probably feel a drop in energy as the medication wears off. However, if you are one of the ones who don't experience side effects, you may not notice a drop in 'energy' as it begins to wear off.


Just for the sake of mentioning it...make sure your Dr is aware or reminded of any and all medications that you may take already before you have him prescribe the diet pills.



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Customer: replied 6 years ago.
I used to know truck drivers that took diet pills and they would use them to stay awake on long hauls. I don't know if they were the same ones used today and they may have taken them a couple times a day or something but they would go for a long time without sleep. I work 12 hr days so anything less than 15 or 16 hrs wouldn't hurt at all but if it goes longer than that it could get bothersome.
Expert:  Nurse Milli, RN replied 6 years ago.

Hello and thanks for the reply


Yes, the diet pills will keep you awake if they are the class of drugs that stimulate the nervous system (as Phentermine does). The best thing to do is try them and see how they affect you. Other 'diet pills' are those like Alli. These do not cause stimulation of any kind.



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