How To: Manage Lifestyle with Phentermine

How To: Manage Lifestyle with Phentermine

When you’re prescribed phentermine, you’re generally told to take it first thing in the morning, but what if you work shifts, or you’re a night owl, and you often stay up late?  

Although you should always follow your prescription, it is always a good idea to explain to your doctor how you need phentermine to fit in with your lifestyle, including your waking hours and snacking habits.

Here we explain how your lifestyle can affect your weight and how you can manage your lifestyle with phentermine.

If You’re an Early Bird

The good news is if you’re an early riser, you have an advantage over those who sleep until later; an Australian study showed that early risers were less likely to be overweight than night owls, even though both groups slept the same amount of hours.

Sleep is very important to health in general and can also help with weight loss, so if you do normally wake up early, then it’s important that you also go to bed early to compensate, as getting the recommended amount of 7-9 hours sleep per night stabilizes important hormones that affect weight.

It is best to take your phentermine when you wake up, as your doctor will prescribe, and then most prescriptions advise you to eat around one hour later.

Fitting in some daily exercise during this time is a great way to use the energy boost phentermine provides; plus, exercising in the morning helps you increase energy levels, metabolism, and mood so that you’re more likely to embrace a healthy mindset and make better food choices during the day.

Fitting in exercise every day can be a hard task, but if you’re already an early bird, setting your alarm a little earlier and getting your exercise out of the way in the morning can give you a well-deserved sense of accomplishment.

But remember to make it up to yourself by going to bed earlier that night.

Phentermine is known to disrupt sleep patterns and cause insomnia, so for the first few days of taking it, you may experience either an inability to fall asleep or an inability to stay asleep for as long as you used to.

These side effects should lessen after a few days, but you should let your doctor know if they continue for longer. Your doctor may prescribe you a lower dosage or advise you to split your pills in two and just take half each day.

If you do find yourself waking earlier than usual during the transition period, rather than staying in bed and feeling frustrated, getting up and being active can help you adjust to these changes.

Getting started in the morning can be the hardest part of the day, but it can also be the most productive.

However, some people who do get up early may sometimes be more susceptible to energy drops in the afternoon, leading to a desire for unhealthy food, so it’s a good idea to have energy-boosting snacks like nuts, yogurt, and fruit close to hand for when those 3 pm cravings hit.

A lunchtime walk outside can also give your energy levels a much-needed boost, so this is a great option if you don’t have time for exercise in the morning due to your busy schedule.

Another great way to boost your energy in the afternoon is by taking the phentermine alternative Phen Caps, which help you lose weight by increasing energy levels and suppressing your appetite.

Combining your phentermine with a Phen Cap in the afternoon will help you stay alert during the afternoon slump and focused on sticking to your healthier lifestyle plan by keeping cravings at bay.

If You’re a Night Owl

If You’re a Night Owl

If you’re not a fan of an early night, you’re at a disadvantage regarding weight loss.

Although the Australian study mentioned earlier compared late and early risers who got the same amount of sleep, staying up later than your body really wants to increases levels of ghrelin.

This hormone stimulates hunger cravings and decreases leptin levels, a hormone that makes people feel full.


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Researchers at the University of Pennsylvania found that people who were kept up until 4 am ate 550 additional calories during their late night hours.

Moreover, more of these late-night calories came from high-fat foods rather than the healthy foods they consumed during the daytime.

The reason for this is that night owls are usually engrossed in activities such as reading, writing, homework, watching television, playing video games, or surfing the internet.

These activities keep the mind occupied but leave the body bored and restless, resulting in them seeking another form of satisfaction, which generally comes from food.

What’s worse is this food is rarely healthy and is more likely to include pizza, popcorn, sugary soft drinks, and alcohol.

If you’re eating while enjoying your favorite activity, there’s more chance that you’ll snack mindlessly, without considering how much you’re eating or whether you’re even hungry.

If your natural bedtime is later, then being a late riser and taking your phentermine when you wake up should help you counteract these late-night snacking habits.

However, making slight adjustments to your waking hours could help you to be more productive during the day; giving yourself time in the morning means you have more time to exercise and more time to eat a filling, healthy breakfast, so if you’re not already an early riser, it could be a positive lifestyle change to incorporate into your weight loss journey with phentermine.

For some people, it may be a case of having to wake up later or at different times due to working nights or varied shift patterns.

For those of you who work nights, you should take your phentermine when it’s your ‘morning.’

Explain your personal timetable to your doctor, and this will help you both come to an arrangement that is likely to include you taking your phentermine when you wake up in the afternoon and then eating either a snack or your dinner around an hour later.

Taking your phentermine in the morning before you sleep is doubly counterproductive, as it will likely affect your ability to sleep during the day.

Then the energy-boosting effects and appetite suppression will be reduced when you need them most during the early hours of the next morning. 

It can be a little more complicated for those of you working different shift patterns from week to week or even day to day, but essentially, the same advice applies.

The optimum time to take your phentermine will be when you first wake up, whatever time that may be, to make the most of the extra energy and appetite suppression during your particular waking hours.

When working during the night, you are fighting against your body’s natural circadian rhythms, and so it is likely that you are more susceptible to periods of insomnia.

However, if you find that sleeping is even more difficult with phentermine and that this lasts for more than a few days, you should let your doctor know to see if he or she can adjust your prescription to help with this issue.

For those of you who need to stay up for work, another problem is the tiredness late at night, which can cause energy slumps and the inevitable cravings that come as a result.

To avoid this, having energy-boosting snacks on hand can be a diet-saver, so make sure that you have foods high in protein, fiber, healthy fats, and slow-releasing energy, like whole grains, to keep you going.

A walk during your break may not be an option during the night, but getting some fresh air can really help boost your focus and motivation for the next few hours to come.

Another option is to take one Phen Cap a little before your mid-shift meal, as your nighttime equivalent to lunch; this will give you a much-needed energy boost, and the appetite-suppressing effects will help you avoid snacking on unhealthy foods during the rest of your shift.

When it comes to weight loss and how best to manage it, there is no one-size-fits-all solution, and this is especially true if you have different waking hours from most people, as this then affects your meal times and the times when you are more likely to need help managing energy levels and cravings.

So, make sure to discuss this with your doctor when you are prescribed phentermine, as weight loss is more successful when you can structure your new healthy lifestyle around your own personal timetable.

Are you an early bird or a night owl? How do you fit phentermine into your lifestyle? Let us know by commenting below!

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  1. Starting on Phentermine today and hoping and praying for the best….
    weighed 261 at my Doctors office today….5’10’ tall…Presently, have problems sleeping..
    this side effect concerns me….


  2. I use to take this 10 yrs ago and it worked for me … I ran into some issues after my BF died and stopped all activities and got FAT … So , now I’m back on it as of today May 14 2014 . I need to lose about 50lbs or more would be great in a 3 month diet plan . I will keep progress updated here .

  3. Hello, this is my first time taking Phentermine I got prescribed to it last week… It sucks because being smaller then gaining weight from pregnancy trying to work it off.. Later i ended up with a hypothyroid condition.. Which put more stress on me.. I did research and read that regardless how much i try to diet and exercise I’m not going to be able to lose it on my own anymore.. Im on a low dose at the moment and will have to go back in a month to get checked .. my vitals and get weighed etc.. If this doesn’t work she has two different options for me. I used to weigh 150.. Before i got pregnant and when i found out i was 170.. When i was last seen at my drs i was 207 and they noticed i gained some my current weight 218 .. My Drs goal for me is 135 or lower.. I am 5’5.. My lowest weight was 145 when i was a teen In school. Im hoping to go back to that or lower.. Since i have been taking it i haven’t experienced any symptoms yet. Lets hope i don’t… it doesn’t sound pleasant .. My sleeping patterns have always been funny. There are days where ill be up in the morning and days where i will be a night owl. My eating habits are weird … There is a reason why i eat the way i do.. And thats from a bad past with a friend staying with her all summer her dad addicted to drugs.. No food around till you have to get a hold of your family to bring you some until late at night until they were off work.. Plus it was way to hot to even try and eat in the day. eventually i got stuck being used to eating like that I’m still the same way today. I don’t eat breakfast or lunch .. Only dinner.. My doctor did tell me it would shorten my appetite a bit more.. And I’ve noticed that.. At dinner i don’t eat as much as i used to, which i loved.. I had subway usually i can eat a whole foot long.. But now i can only eat a 6 inch.. Amazing feeling.. But if i don’t do what i was told i can gain it all back. So i been bringing in more fruits and veggies then id normally do.. when i snack, i eat veggies and fruit.. Im not a fan of soda.. I love water and i enjoy drinking lemonade or orange juice .. Im constantly on my toes being active…
    So, i hope this works 🙂 6 months will be my term.. But if i don’t lose anything with this dose they will have to upper my dose. Good luck to everyone be safe.. 🙂

  4. Took Phentermine 2 years ago, starting weight was 180lbs, ending weight was 135lbs about 4 months later. I did not exercise, I was a nursing student at the time. This medication worked for me. I went off of it and did fine but about a year ago I started working night shift and began gaining weight again. I just started taking phentermine again about 5 days ago.

    1. I just started nights as well. This is my first time taking this and am hoping this will work. I worked 3rds before and gained a ton of weight. Maybe we can motivate each other. Any suggestions since you’ve done this before?

  5. I been taking it for a week and I love it .. I already lost 10lbs and I did everything military diet Herbalife and hydroxycut and other diet pill from stores ..even did all those with going to gym and none those worked ONLY PHENTERMINE WOKED AND IS WORKING FOR ME


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