questions about life after phentermine

Life After Phentermine: What You NEED to Know

General Phentermine Questions?
Check out the ultimate guide to phentermine weight loss pills!

Phentermine is prescribed as a short-term treatment for obesity, so we tend to wonder a lot about life after phentermine… How will it look? Will I be able to keep the weight off? Do I need to eat like this forever? What challenges should I expect? There’s a common misconception that it’s impossible to maintain your new, slimmer figure without going back on phentermine. Thankfully, that’s NOT true. Still, if we’re being honest, keeping the weight off won’t be effortless either.

In this article we’ll talk frankly about what you need to know for life after phentermine, including proven tricks for weight maintenance and daily habits to keep you on the path to health!

Habits for Weight Maintenance

Losing weight is hard work. It’s an accomplishment that you should be able to show off for years to come! But, contrary to popular belief, the hard work isn’t over when you reach your goal weight.

About 80% of people who lose a significant amount of weight regain all or some of that weight within two years. The key to successful weight maintenance is to behave like the determined 20% who keep the weight off long term. Lucky for us, this is a heavily-studied topic and experts can offer some practical, concrete recommendations that will help you avoid re-gain.

In the US, there’s a group called the National Weight Control Registry (NWCR). This list keeps track of people have lost at least 30 pounds and kept it off for a full year or more. The registry is voluntary and currently tracks over 10,000 individuals. When experts analyzed the data gathered through NWCR questionnaires, certain patterns emerged in the daily routines of people who successfully maintain major weight loss. If you’re wondering how to keep the weight off during the ups and downs of life after phentermine, check out these six straightforward tips!

Looking to maintain your weight loss long term? Check out these 6 proven tips!

People successfully keep the weight off by choosing to: 

1. Eat Breakfast

If you want to maintain major weight loss, eating breakfast proves key. But don’t stress – it doesn’t need to be anything fancy! The most common breakfast among NWCR participants is milk and cereal, but scrambled egg whites & toast, a smoothie or a meal replacement shake are great options too. The most important thing is that you eat (or drink) something. Aim for about 250-400 calories at this first meal.

2. Stick to a Healthy Diet

Have you heard people telling each other, “If you want something you’ve never had before, you have to do something you’ve never done before”? As cliché as it sounds, this advice holds amazingly true – as does the opposite. If you do what you’ve always done, you’ll end-up where you’ve always been. So, it’s important to stick with your new, healthier diet if you want to maintain your new, healthier weight.  NWCR respondents report sticking to a low-fat, calorie-controlled diet long-term. Experts estimate that these maintainers eat about 1800 calories per day (when exercising) and avoid high-fat foods.

3. Cook at Home

Eating at home is healthier, and cheaper, than eating out. Studies show that home-cooked meals are almost always lower calorie, lower fat and lower in sodium as compared to restaurant meals. Moreover, diners who usually eat at home tend to eat less when they choose to eat out. People that lose a lot of weight and keep it off know this. Successful maintainers in the NWCR only eat out an average of 2.5 meals per week, and less than once a week at fast food restaurants.

4. Maintain Restraint

One reason people who successfully keep the weight off are able to stick with their healthy habits long-term is because they keep a “just lost weight” mindset. Instead of allowing themselves to slack, successful maintainers preserve their discipline. They stay highly motivated to eat right and get moving each day long after they’ve reached their goal weight.

The most successful maintainers hold onto this mindset even on weekends and holidays. This matters because these are the times when we’re most likely to binge or otherwise abandon healthy habits. To maintain major weight loss, healthy living should be a 24/7 endeavor.

5. Stay Active

It’s no secret that healthy diet and exercise work together in keeping your body healthy. So, it’s important to incorporate both into your daily routine to maintain weight loss. NWCR participants report fitting in an average of one hour per day of moderate exercise. Walking is the most common workout, but hiking, workout classes and water sports also prove popular. Anything works as long as you enjoy the activity and keep moving!

6. Weigh Regularly

Getting too attached to your scale is definitely controversial, but studies show that pesky machine plays a legitimate role in weight maintenance. The majority of those 20% that maintain their lower weight weigh daily, or at the very least weekly. Experts think this helps because it allows the individual to note small fluctuations in weight and adjust accordingly. If you weigh frequently, it’s much less likely that you’ll gain ten or fifteen pounds without noticing.

life after phentermine: excited about weight maintenance

Preparing for Life After Phentermine

If you’re nervous about reaching the end of your phentermine prescription, routine and a strong support system will prove extra important in making your transition off the medication successful.

Establish Healthy Routines

During the final weeks of your phentermine prescription, make it a point to establish healthy routines based on the above tips. For example, if you aren’t normally a big breakfast person, take this opportunity to start incorporating a morning meal into your daily routine. Same goes for exercise. If you’re working out 3-4 times a week now, make an effort to increase this activity to 5-6 times per week. The lower your body weight, the less calories you need to function. So, if you’re working to permanently maintain a more slender figure, controlling intake and increasing activity are paramount.

Establishing routines also proves extremely helpful in a more general sense. While you still have the help of phentermine, start getting your body used to a set daily routine. If you’re already used to eating healthy meals and snacks, working out and sleeping at the same time each day, it will be much easier to control your appetite and energy levels post-phentermine. Wondering what a healthy routine looks like? Check out the example below!

Seek Support

Last, but definitely  not least, seek out a strong support network. Did you know that obesity is medically considered a chronic condition? That’s because doctors, nurses, dietitians and the rest of the medical community understand that weight loss and maintenance is a life-long activity. None of us are 100% motivated all of the time, so seek-out a strong support system that will celebrate the victories and brave the lows with you.

This support can either be found in-person or online. If you have a friend, coworker or partner that will keep you accountable and help you navigate challenges that’s perfect! Check-in regularly with this person about your meals, workouts and life in general. It can be fun if you two (or a group of you) swap healthy recipes, explore new fitness classes, and offer each other emotional support when life gets tough.

If you don’t have that person (or you’re keeping phentermine a secret), consider seeking support in an online community. We maintain a number of lively communities that serve just this purpose for thousands of phentermine users every day! If you’re interested in finding weight loss support, motivation and tips online, check out  on or more of these awesome communities:

Already completed your phentermine treatment, or just about to finish?

Join this Facebook group specifically targeted at providing support for life after phentermine, the ongoing journey towards health and successful weight maintenance!

A Day in the Life

So how do you put all of these life after phentermine tips into action? Here’s an example of a healthy weight maintenance routine!

Clearly your food, exercise and schedule will vary day-to-day, but the idea is to follow a similar routine regardless of what life throws your way. Most days should be filled with nutritious and moderate meals & snacks, about an hour of moderate physical activity and self-care as needed.

Time Activity Macros
6:30am Wake up
7am Cook and eat breakfast: 2 slices of whole wheat toast and 2 scrambled egg whites with black pepper plus 1 clementine (a vsmall orange) 222 calories, 2g fat, 35g carbs (6g fiber), 16g protein
7:30am Leave for work
12pm Eat lunch: grilled chicken salad (2 cups lettuce, 2oz grilled chicken, ½ cup diced tomato, ¼ corn kernels, ¼  cup canned black beans, 2 tbsp ranch dressing) plus one serving of Wheat Thins 363 calories, 4.5g fat, 57g carbs (11g fiber), 27g protein
4pm Eat afternoon snack: large apple and a tablespoon of natural peanut butter 210 calories, 8.5g fat, 34g carbs (6g fiber), 5g protein
5pm Get off work
5:30pm Workout: brisk walk around the neighborhood for one hour
7pm Cook and eat dinner: spaghetti and meat sauce (1 cup cooked whole-wheat penne, ½ cup ready-made marinara sauce, 3oz of cooked lean ground beef) with steamed squash (1 yellow squash) 608 calories, 10g fat, 91g carbs (15g fiber), 45g protein
8pm Nighttime snack: 1 cup of tea (decaf, unsweetened) and a small handful (1/4 cup) of regular trail mix 173 calories, 11g fat, 17g carbs (2g fiber), 5g protein
10pm Bedtime
MACRO SUMMARY 1576 calories, 21% fat calories


Are you close to your goal weight or reaching the end of your phentermine prescription? Share your questions about life after phentemrine and experiences with weight maintenance in the comments section below!


Editor’s Note: This article was originally published November 28, 2017. It was updated and expanded on April 10, 2018.


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9 Responses

  1. I\’m a nurse and work the 6pm to 7am shift. It\’s almost impossible to have the same schedule for sleep and meals. If I do, then I would never get to be a real part of the real world. Since most of the population functions during the day. Help.

    • Hi Michele, thanks for your comment! The best option is to discuss your unique schedule with your prescribing doctor and work together to devise a dosing schedule that works for you. Since you go to bed in the morning, the typical advice of “take your phentermine first thing in the morning” doesn’t apply. Instead, it may be best for you to take your phentermine in the afternoon/evening so that you feel its effects most strongly during your night shift. Still, your doctor is the best person to help you figure-out a specific schedule. In the meantime, you may be interested in this blog post about phentermine and working the night shift. Best wishes!

    • Michele
      I am a night shift nurse too and just finished week four. I lost 17lbs going from 176 to 159 with a goal of 145
      The way I do it is on work days I take it around 4pm.
      If I only have one day off and then back to work I skip the day off because we need to sleep. If I have a few days off then when I wake up for a real day off at take it an hour before breakfast,
      My doc knows I do t take it every day. I average about 23-25 days a month cause of work
      Hope this helps

      • Thanks so much for sharing Rachelle! 🙂

  2. I have 75 pounds to lose I have been doing keto for almost 4 months and have lost almost 30. But have been stalled for the last month. Would really like to introduce phentermine into my routine. How do I find a doctor who will prescribe it? I have a 3000.00 deductible with my insurance so I dont want to keep going to doctors that wont prescribe it to me. I live in Minnesota (twin cities area). My insurance is Medica. Does anyone have any docotrs they could recommend for me please.

    • Hi Lori! We’d recommend asking this same question in our support group on Facebook. Other phentermine users can often help you find a prescribing clinic in your area 🙂 Best wishes!

  3. The end is near. I went from 37.5 to 30mg. I have a week left, but at 152lbs I am below the BMI of 27 to go the 15mg my MD wanted me to.
    Gonna have to go at it alone.

    Not very worried, just a little scared,
    Did anyone go cold turkey and succeed

  4. I started my diet last yr i I platto. My doctor mentioned to me about this medication i was worried about it… so i started this medication and gave it a run to see what it will do i changed my eating habits completely i am now exercising and i was a lazy person
    lol. Since i been taking this i have lost i started this medication wearing size 26 in pants and now i am in 14,16 and some 18 my shirts went from 5x to lg and xlg my blood pressure came way down i was taking blood pressure meds now i have to stop taking them and i had a a1c test my a1c was 10 and now its down to 1. I started out being 270 and now i am 213 my goal is 150-170 all depends on how i look. I feel so much better ! I am planning on keeping my weight down i never wanna be that/this heavy again ! I also downloaded my fitnesspal its a excellent app to help watch ur calories gotta be faithful to it anything u consume in ur mouth log it in no matter if its free or not when it comes to calories…

    • Hi Rebecca, thanks so much for sharing your story! CONGRATULATIONS on your success 🙂 MyFitnessPal is a great weight loss app – keep up the great work!

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