Fastin Vs. Phentermine – What’s The Difference

​Phentermine has been around a long time and is a well known and used prescription drug used to suppress appetite so that you eat less and lose weight.



It is used in conjunction with a reduced caloric intake and exercise program. It has been approved for short-term use in the treatment of obesity. Phentermine is a generic drug. Fastin was a prescription drug that contained the generic drug Phentermine. Due to severe side effects reported in the 1990s, Fastin was discontinued in 1998. Today there is a new Fastin sold over-the-counter (OTC) but this is a very different product and has nothing to do with the prescription form. It doesn’t contain Phentermine but rather Phenylethylamine, botanicals and a lot of caffeine and it is used as a weight loss supplement as well.

​The FDA approved Phentermine (a prescription appetite suppressant) back in 1959 so it’s been around a long time. This is obviously a controlled substance and thought to be mildly addictive. Given that it is related to amphetamines chemically and pharmacologically it has the potential to be abused. Generic Phentermine has been sold under several brand names such as Fastin (now discontinued), Ionamin and Adipex-P. However, most people take the generic form. Phentermine is an effective appetite suppressant, however it has a number of side effects. Some of those side effects include: dry mouth, nausea, vomiting, insomnia, increased heart rate (tachycardia), high blood pressure and nervousness.

A very popular drug for weight-loss in the early 1990s was called Phen-fen. Phen-fen was a combination of Phentermine and Fenfluramine. As time went on, more and more side effects were reported with Phen-fen. In response to this, Fenfluramine was taken off the market. Some time later several of the brand name manufacturers discontinued their brand of Phentermine as well. Fastin was one of them. Fastin was discontinued in 1998. In this case, there is no difference between prescription Fastin and generic Phentermine other than the generic form is generally cheaper and that is why many people buy generics especially when they are the same thing as the branded product.

Interestingly, Hi-Tech Pharmaceuticals, the manufacturer of Fastin OTC, was able to purchase the Fastin name and trademark from the former prescription manufacturer which happens to be Beecham. So, Hi-Tech began producing a line of dietary supplements. So far they have 3 Fastin products for over-the-counter. These dietary supplement contain alkaloids which may have similar side effects as the prescription Fastin which includes: increased heart rate (tachycardia) and increased blood pressure.

It is important for over-the-counter (OTC) medications as well as prescription drugs to undergo clinical trials to determine safety ad efficacy. It’s also important to enforce testing standards especially for purity. Prescription drugs have to go through clinical trials and must pass Phase III trials if they are to be sold on the market. Currently, dietary supplements don’t have to undergo clinical trials because they are considered food by the FDA. So, keep it in mind that unless a dietary supplement has been shown to cause harm, it can be sold with few restrictions.

Best Way To Exercise On Phentermine

​If you’re taking phentermine or thinking about taking it, it’s a good idea to consider some form of regular exercise you want to do to lose even more weight and further increase your sense of well being. Exercise can be anything from cleaning the house, walking around the neighborhood to going to a gym.



Whatever suits your fancy. But, whatever you do it doesn’t need to be strenuous but you should do it everyday if you can. After all, Phentermine can’t do all the work, so you need to do a little extra on your own part.

Phentermine is an appetite suppressant not a miracle. It will help to quench your food cravings and that will help you lose weight but exercise will give that extra added weight loss that will really make a difference in much less time. With that in mind, let’s take a closer look at some types of exercise you can do when taking phentermine.

One of the simplest forms of exercise is walking. It’s amazing how healthy it can be. Walking at a fairly decent speed (not a power walk but something close to a 15 minute mile) can be invigorating and calorie burning. This would be on the order of 4 miles per hour. This burns about 415 calories. Not Bad!

Zumba Fitness Logo

There are a number of fast exercises available today like Zumba. If you can handle fast paced movement and enjoy music, this might be just the ticket for you. If you’re into dance, consider taking a dance class. My favorite is swimming. I use a mask and snorkel so I can swim faster because you get more air. It’s easy to do a lap per minute. Do 60 laps in an hour and you can burn 600 to 700 calories. The nice thing is that you are essentially in a gravity less environment so it doesn’t put any pressure on your joints. This routine and phentermine will cut the weight down fast.

Tae Bo Class

​Some of you may be into Yoga or Tae Bo. If you’re new to Yoga but curious about it, it is a Hindu spiritual discipline that involves learning about breath control, meditation and practicing specific body postures that are supposed to promote health and relaxation. Since this is a difficult exercise, you’ll need to start out with the basics and see how far you can get with it.

There are a number of different Yoga practices and goals so you’ll need to educate yourself on the different types. However, the most well known are Hatha Yoga and Raja Yoga. Yoga classes are found just about everywhere and many of them are free.

​If you’re more into Tae Kwon Do and/or Karate, you might want to consider Tae Bo. Tae Bo has been around for about four decades and is quite popular. It combines boxing, Tae Kwon Do and other fitness practices with fast-paced music. If fast paced exercise interests you, then Tae Bo may be just right for you.

beach yoga workout

Keep in mind that phentermine will help you lose weight but you will need to do some kind of exercise on a regular basis to make it work properly.

Phentermine And Weight Loss Goals

Whether you take phentermine or not, you need to establish weight loss goals. No matter what weight loss system you use, you need a game plan to accomplish your goals.



Make sure you don’t set your goals to high or too low. Be realistic about how much weight you need to lose and in what increments work best for you.

You might want to do some research on the internet to find out what is an appropriate weight range for your gender, height and age group.

This can help you get started. If you are uncertain, talk with your health care provider and see what he or she has to say. While you’re at it, see if they can suggest a reasonable, healthy diet that will assist in your weight loss.​ Although you don’t need to exercise with Phentermine, it is a good idea if you do because it can double your weight loss. It is possible to lose 8 to 10 pounds a month if you take the 37.5 mg dose of Phentermine and have a restricted caloric intake (1,000 to 1,500 calories per day) along with light exercise like walking. Make sure you walk 3 times a week at least 30 minutes each time and if you can try to walk for an hour. Say you lose 10 pounds the first month and your goal is to lose 30 pounds in total. Well, you’re looking at around 3 months time to achieve your weight goal. Not Bad, Simply Not Bad!

Women Smiling - weight loss

​Using this as a weight loss goal, you’ll need to establish your own, set up a daily diary. Each day should list when you took your Phentermine and how much, the meals you will have for the day along with your weight. Plan for a week in advance. Having this information written down is very important. It helps you to stay on track and can tell you were you went wrong so you can make adjustments immediately. Just do it! If you’re not losing as much weight as you want, change you diet by looking at amounts and calories. Make adjustments there and if need be, increase your walking distance or how fast you walk. I mean you can go all the way up to a power walk. Start out with you basic plan and alter it when you need to but keep going. Three months is a relatively short time to lose 30 pounds.

​Once you achieve your goal, you’ll need to think about maintaining your weight. Losing is one thing and maintaining is another but that’s for another time when you get there. Small steps, one step at a time. Don’t lose sight of the bigger picture but concentrate on what you do daily and you will get there. If you have a spouse and children, make sure that they fully support you in your endeavor. See if they will share in your diet and exercise routine.

What To Eat When Taking Phentermine

As an appetite suppressant, Phentermine can help you lose weight. Nevertheless, you should have a diet set up to go with this weight loss supplement.



Combing a sensible diet with this appetite suppressant will help you achieve your goals even faster. The menu is wide open so long as you take in healthy fats, lean protein and low sugar.

I don’t know about you, but breakfast is the most important meal for me. This is what gets me going for the day and sets my pace. You need to get the right nutrients not only to lose weight while you are on Phentermine but be able to maintain your weight when you stop taking it. Remember, breakfast gets you on your way and sets the pace for the rest of the day including metabolism. This will keep you from snacking between breakfast and lunch by stopping the cravings for food when you eat improperly.

Healthy breakfast

There’s a reason why they call breakfast “breakfast”. Your body has been without food for at least 8 hours and usually more unless you eat before you go to bed. So, you see breakfast is breaking the over night fast. Your body and brain are low in sugar and your system is pulling out stores of fats, sugars and protein. It’s now time to replenish the system and get it up to speed so you can do all those things you want to do. Just because you are on phentermine, doesn’t mean you should skip breakfast. Oh No! A healthy breakfast will actually help you to lose more weight.

Have 1 boiled egg per day and every now and then perhaps have two. Cook once and eat for two weeks. Not Bad! To go with, I have a high protein and high fiber whole wheat bread that I toast (1 slice). I put some real organic butter on that. In stead of toast, try some oatmeal. That’s always a good choice. And, to complete the meal, I have a Greek yogurt. Make sure you get the one that has only 7 grams of sugar not 32 grams (Ugh). If you like, you can add some fresh fruit to that. Just buy what is in season. Also, make some green tea.

Green tea helps you to lose some weight as well. If you’re into green smoothies and have the right blender, go for that.

Breakfast Foods to help you Lose Weight With Phentermine

  • Whole fruits
  • Low sugar and high protein yogurt, like Greek yogurt Oatmeal or equivalent cereal
  • Whole wheat bread that is high in protein and fiber but low in sugar
  • Cage-free eggs, they are higher in omega-3s, vitamin E and other vitamins and minerals and they are much lower in cholesterol.
  • Green tea or perhaps whatever tea you prefer ​

Make sure to eat breakfast, remember you are breaking your over-night fast and your body and brain need food to get going. Make sure you have a high-fiber, high-protein breakfast and your phentermine should serve you well.

​Make sure to eat breakfast, remember you are breaking your over-night fast and your body and brain need food to get going. Make sure you have a high-fiber, high-protein breakfast and your phentermine should serve you well.

What To Eat While On Qsymia

When starting a weight loss diet while taking Qsymia, it can be difficult to know where to start. Your health care provider can help you get started with a general outline.



There are many diets out there and there are some you need to stay away from. The first two weeks are crucial so you need to follow a diet very carefully.

The general idea is to maximize foods that are good for weight loss and minimize foods that cause weight gain. This is good because this makes meal planning easy. Basically you’re looking at something similar to an Atkins diet which means high protein, high fiber and low carbohydrate foods. Couldn’t get simpler than that. It’s all about the right food choices.

​Foods that contain a lot of sugar actually increase your appetite, so you want to eliminate those. Just think about a glaze doughnut. It is high in fat and sugar. You eat one and you want another one. Eating a lot of sugar makes you want more sugar. So you need to stay away from high sugar foods. Foods that make you feel full and are satisfying include various protein sources and veggies. Veggies are very important as they are high in fiber and antioxidants and low in sugar. The fiber tends to fill you up and slows down digestion keeping you feeling full longer. You can have some bread but only if it is whole wheat and contains 2 grams of sugar or less per slice. Ideally, you need to stay below 13 grams of sugar per day for the first two weeks. After that point, you can gradually add in complex carb foods slowly. You’ll need to check your weight daily and see where you begin to gain weight. Once you have established that, you’ll know how many carbs you need to cut back to maintain constant weight. It’s a little bit of trial and error and it is different for everyone.

​It’s also important to know that you need to eat to lose weight on Phentermine. Don’t skip meals. Skipping a meal(s) puts your body in starvation mode which causes your body to hold on to weight for survival. Your brain sets you average weight and tries to maintain that at all times. At this point, you’re trying to lose weight so you’re trying to reset your average weight in the brain (hypothalamus) to a lower weight. Skipping meals creates a yo-yo effect which is confusing to your body and brain and no weight loss will occur. Basically, you’re looking at a 500 to 800 Calorie reduction daily. So, you need to take in at least 1200 Calories to 1500 Calories each day to lose weight. And, remember stay away from sugary foods.

General Diet When Taking Qsymia

  • Drink lots of water – this drug tends to create dry mouth so you need to keep yourself well hydrated. This is important for metabolic processes and elimination of waste material as well. Some people experience constipation with Qsymia. Drinking a lot of water helps to avoid this issue. It is recommended that you drink 8 – 8 ounce glasses a day.
  • Protein – very important for every cell in the body and particularly the brain and skeletal muscle. Low protein consumption slows down brain function. Moreover, high protein foods take more to digest, metabolize and use. That means you burn more calories processing protein. If you are exercising and building lean muscle, you need to take in more protein. If you don’t, you’ll start burning protein in your own muscle. You have a wide range of protein sources to mix and match such as fish, lean skinless chicken and turkey, lean beef (8 percent fat or less), eggs (range-free), nuts and low-fat dairy. Try some yogurt and cottage cheese. Make sure the yogurt is low sugar. Some of them have 33 gm of sugar per serving. Look for unflavored yogurt or fruit yogurts with 6-7 gm of sugar. For breakfast you could have a hard boiled egg, 1 slice of whole wheat toast (pat of butter) and one yogurt.
  • Veggies and fiber – veggies contain high concentrations of water, fiber and antioxidants. This is a way of adding volume to your meals without all those calories. You need to stay away from fruits your first two weeks. Fruits contain a lot of sugar some of which is in the form of fructose. Too much fructose runs your metabolism amok. After the two week period you can gradually add fruit. For really powerful antioxidants, choose berries. All kinds of berries such as raspberries, blueberries, blackberries, pineapple (it’s a berry), goose berries, acai, strawberries, cranberries and the list goes on. Their bright colors tell you they are full of antioxidants. Eat the whole fruit and stay away from juice.

If you feel like Qsymia is too much for you, try Obilean supplement and lose the weight just as well as on prescription medicine.