Editor choice

Nexgen Phenrx Reviews (Fenphentamine / Phen RX Rating)


review phenrx as phentermine replacement Formulated and created by NexGen BioLabs, PhenRx is an over-the-counter option for those who want to bypass the prescription weight loss pill Phentermine. Below you’ll find information that we’ve compiled in order to evaluate the product and its claims on how it can help you lose weight fast. How effective and safe is PhenRx? Continue reading to learn whether or not this diet pill is actually worth your investment. You’ll gain access to information on its ingredients, the manufacturer’s claims, and people’s reviews, as well as where you can purchase the item at the lowest price if you decide to try it.

About PhenRx

Taking PhenRx is easy. All you have to do is take one pill 30 minutes before breakfast and another 30 minutes before dinner. NexGen has stated that the product is clinically proven to help you lose weight, and it does so by:

  1. Suppressing the Appetite: This probably results from the stimulants in the ingredients.
  2. Increasing Metabolism: NexGen claims that PhenRx will stimulate your thyroid, which directly influences your metabolism.
  3. Enhancing Metabolic Function and Fat Burning: By increasing your metabolic rate, PhenRx is also able to influence your body into using more energy while you’re at rest, thereby increasing your natural fat-burning abilities.

While taking PhenRx, you should also feel increased energy and improved mental focus, again thanks to the stimulants contained in it. The stimulants may even increase your motivation to exercise, which is an important component of successful weight loss.
To complement PhenRx overnight, you can purchase NexGen’s PhenRx PM product, which is referred to as a “thermogenic non-stimulant nighttime fat burner.”

Phen375 (#1 ranked last 4 years...)

2015 to 2019's #1 ranked legal fat burner (not cheap but extreme potency with REAL results)

$85.08 $116.85

Fenphentamine HCL Ingredients

PhenRx lists the ingredients contained within Fenphentamine HCL, which is in contrast to other weight loss product manufacturers that are unwilling to disclose their ingredients. This creates a higher level of trust for the company because you know what they’re selling you. Nevertheless, the actual amount of each ingredient, as well as how the ingredients are mixed together, isn’t disclosed. Therefore, please don’t attempt blending these ingredients on your own at home. Purchase the product instead, which NexGen has created after many hours of research and development.
Below is a list of ingredients in Fenphentamine HCL, along with descriptions of how these ingredients work on their own. We’re unable to say how these ingredients will work together when combined, or how dosages affect their effectiveness. This is merely to give you an overview of what would be going into your body if you took PhenRx.

  • Beta-Phenylethylamine (PEA): This stimulant is meant to improve your mood by increasing production of dopamine and reducing its absorption by dopamine receptors. When your mood improves, your appetite is suppressed. This ingredient may also increase metabolism and fat burning.
  • N,N-dimethyl-4-hydroxyphenylethylamine (Hordenine): This naturally-occurring alkaloid functions as a stimulant and is often employed in weight loss products as a thermogenic that will increase your metabolic rate and ability to burn excess fat.
  • Schizandrol A: This ingredient improves focus and memory. It’s also found in many brain supplements and can improve cognitive function while reducing stress.
  • Synephrine HCL: This common dietary supplement helps you lose weight, especially when used with caffeine. HCL salt is a synthetic form of synephrine, which is found naturally in oranges, particularly in bitter oranges, where it’s most highly concentrated.
  • Yohimbine HCL: This mild MAOI inhibitor also has a stimulant effect on the body and it has been evaluated for its weight loss benefits. It may block receptors that prevent fat loss, though more research needs to be conducted to prove this. Although it isn’t very effective when used on its own, it’s often combined with other ingredients in weight loss products.
  • 1,3,7 – Trimethylxanthine (Caffeine): Caffeine can not only give you energy, it can also suppress your appetite. Use caution when taking this product and consuming coffee, as you may feel too jittery from the overload of caffeine in your system.

Side Effects

According to NexGen, the side effects of Phen Rx are minimal. However, it’s recommended that you talk to your doctor before taking this or any other weight loss supplement. The only side effects provided by the NexGen site are sleeplessness and dry mouth, which are very common side effects of any stimulant.
Keep in mind that this product has stimulants that can increase your blood pressure and heart rate, so use caution. Also, don’t take this product if you’re pregnant or nursing, or if you have high blood pressure, diabetes, cardiovascular disorders, or heart disease. Don’t combine this product with other stimulants.

PhenRx PM

PhenRx is the product’s nighttime formulation that can be used regularly with PhenRx. It, too, will increase your metabolism and metabolic rate while suppressing your appetite. But rather than giving you energy, it will enhance REM sleep. Simply take one pill 30 minutes before bed.
Ingredients include Magnolia Bark Extract, Green Tea Extract (50% EGCG), Melatonin, Black Pepper Extract, L-Theanine, Raspberry Ketones, Phosphatidylserine, Gamma-Aminobutyric Acid, 7-KetoDhea, and Coleus Forskohli.
There’s actually no overlap in ingredients between PhenRx and PhenRx PM, which is more natural and contains a variety of herbal extracts. Stimulants, which are found in the daytime formula, are much more effective at enhancing weight loss.

PhenRx vs. Phentermine

PhenRx is essentially an OTC alternative to Phentermine, which is a psychostimulant drug within the phenethylamine class. Phentermine is very similar to amphetamine and requires a prescription from your doctor, and it can only be used for short periods. On the other hand, no evidence suggests that PhenRx could result in dependency, and there aren’t any warnings regarding taking it long-term.
In terms of effectiveness, PhenRx and Phentermine are quite similar, though Phentermine has been researched and tested more extensively. Phentermine’s list of side effects is a lot longer, though this could be the result of all the clinical trials it’s been through. PhenRx, which is marketed primarily as a health supplement, does contain FDA-approved ingredients but the FDA hasn’t evaluated the product’s claims.

PhenRx vs. Phentramin-D

This is another over the counter weight loss supplement. Phentramin-D and PhenRx are pretty similar so it is hard to say which one is better. They have both been shown to be effective for people. The prices are a bit different though. Three bottles of PhenRx is $135 while 3 bottles of Phentramin-D is $157. While Phentramin-D is slightly more expensive, it does come with a money back guarantee. I guess it just depends on what matters most to you. They both have coupons currently running for them. Read customer reviews of Phentramin-D to learn more about it.

Does PhenRx Work?

This product does work, though it may be hard to locate studies that have been conducted on the effectiveness of Fenphentamine HCL. There has been quite a bit of research conducted on many of the individual ingredients that are within it, and they have been shown to stimulate weight loss.
Based upon reviews from people who have tried PhenRx, you can see results within the first week alone. Most people lose around 2 pounds, though some may lose as much as 5 pounds per week, which may even be excessive and unhealthy, depending upon the individual’s starting weight.

Where to Purchase Online

If you’re interested in purchasing PhenRx online, it’s best to go to the NexGen website. Even though there are a few third party sellers on Amazon that carry the product, the prices are higher than what NexGen is selling it for. It’s also hard to determine how quickly these sellers are getting rid of the products, and if a bottle sits on a shelf for too long, the ingredients may lose their potency. NexGen is sure to give you the freshest product at a reasonable price, and you can deal with their reliable customer service if you encounter any problems. However, if you really want to go with Amazon, they also provide good customer service and you may find an even better price at some point in the future.

PhenRx PM
PhenRx Pm is also sold through NexGen’s website. This product only needs to be taken once a day rather than twice a day, and its price is also lower than PhenRx. This product is not as readily available on other sites like Amazon.

Where to Purchase in Stores

We haven’t been able to find PhenRx in any stores, including GNC, Walmart, Walgreens, Rite Aid, and CVS. Perhaps as the product and others like it gain more popularity, they’ll be made available.

PhenRx PM
Thanks to the more natural ingredients in PhenRx PM, we thought we’d have more luck finding this product in stores, but we came up empty. Again, only time will tell us whether or not these will ever be made available in the most popular brick-and-mortar retail locations.

Get the Best Price

Because it’s difficult to find PhenRx and PhenRx PM on websites other than the NexGen site, we recommend shopping there to get the best price. But check back often, as we’ll keep updating this page to let you know if we find any other retailers or online shops, as well as deals, on these products.

Phen375 (#1 ranked last 4 years...)

2015 to 2019's #1 ranked legal fat burner (not cheap but extreme potency with REAL results)

$85.08 $116.85

  1. Have you tried Phenrx as an over the counter weight loss supplement or as an alternative to medications like Phentermine?

    Please leave your thoughts on it was effective or not or if you have any questions don’t hesitate to ask and I’ll try my best to answer you in a timely manner 🙂

  2. I love PhenRx. I feel great! It is definitely a mood elevator and gives you plenty of energy. You actually feel like exercising without pushing yourself I lost 7 pounds the first week. It really does decrease your appetite and stop the cravings for sugars and starches. This is a great product for somebody that struggles with depression and feeding their emotions. I believe it because it raises your dopamine levels which is your pleasure hormone. I really do love this product. It has been a lifesaver for me.

  3. Been using this for years… it’s seemed to change a few times but never really lost any potency and always seems to work well. I have bought the Phenrx Ultimate Fat Loss Stack 2016 which includes Phenrx, Phenrx PM (sleep friendly diet pills), phenrx patches and a liquid diet drop.

    Really good deal and you can’t go wrong using all 4 slightly different products.


  4. I really love this over the counter phentermine / adipex-p alternative after having been on that weight loss medication with nasty side effects for a couple months. This has a really strong appetite suppression effect and I think the ingredients in Nexgen Biolabs products are custom formulas and of very high quality. I would give this Nexgen Phenrx review a perfect score if not for my inability to find any stores like where I could buy Phenrx in store as I really hate online ordering and shipping.

    I noticed that there are now phenrx topical patches and diet drops as well and I think I will add those in for a complete over the counter adipex substitute regime with more natural herbal ingredients. I have heard a couple talking about phenrx vs phen375 and having tried Nexgen’s self proclaimed phentermine replacement, a prescription med which I have used, I must say that I think this must be way better than Phen375… I hope to see this in stores like walmart, cvs, gnc etc soon.

  5. Definitely one of the strongest otc weight loss pills you can buy in 2016… I wouldn’t be surprised if some of these ingredients get banned and they have to reformulate it… I’m sure the big pharmaceutical companies don’t like them calling it a substitute for Adipex-p / Phentermine 37.5mg either lol.

    Stock on this product before it is no longer available and legal across the counter.

  6. if you decide to stop taking it will you gain all the weight back? I don’t expect a quick fix but I don’t wanna take something for ever either… I been dieting and exercising for about 7 months and only lost 10lbs and I can gain that back in a month if I slip off the wagon. would anyone recommend anything

    • Jessica,

      If you are eating healthy and exercising regularly you will keep the weight off and continue to lose weight. One of the greatest benefits of exercise, your resting metabolic rate increases, meaning you burn more fat on a consistent basis.

  7. I can not give this a score because I havent tried it yet. I just ordered a bottle from walmart.com today. I am on my last month of adipex from my doctor. I have lost 38 lbs. In these 3 months. I eat lean cuisines, smart ones and healthy choice entrees. I do not sway from this. I drink water 90% of the day. Maybe some prune juice once a week and a small cup of coffee like 3 times a week. I also go to the gym at least 5 times a week. It is mostly 3 miles walking on the treadmill and a few weight machines every once in awhile. I am hypothyroid and take 75mcg of levothyroxine. We are a long way from the correct dose for that. I am upset that a person can only have adipex for 3 months especially someone like me that has a side effect from the levo of starvation. I realize a person cant take diet pills forever but in certain cases I think the rule should be bent. I hope these pills work as well as the adipex. I am taking the phenRX with me for my last weigh in here in about 3 weeks to have the doc take a look. He is disappointed as well that I cant have the adipex any longer because I am doing so well on diet and the gym. He gave me a few options of other types of pills he could write a script for but they are not diet pills but do cause weight lose. In my research of his suggestions the cons outweight the pros so I am gonna pass. If the levo just wouldnt make me starve so badly Id be great. Cant wait to get my delivery of the PhenRX! ?

    • I also suffer from hypothyroidism I take 137 Mcg of levothyroxine I was diagnosed in 2010 my Dr normally wouldn’t prescribe weight loss medication but bc of the thyroid disease he did for me and I lost 70 lbs in the span of 9 months!!! I didn’t eat a lot different than before the medication just a lot less!!! I haven’t taken the phentremine for almost 3 months now and am noticing it’s a lot harder to keep the weight off although not impossible just have to work harder not to ear as much when u r hungry u think about it a lot more than when u r not it’s a terrible feeling to feel hungry and not think about it i understand ur frustration hang in there with the medication adjustments for the thyroid disease as u want to slowly adjust instead of jump around bc an overdose of levothyroxine is a very scarey and real thing I have been there and was terrified that I was dying

      • Cclra2r6, I am also taking Levothyroxine .150mcg, is this safe to use?? I have gained so much weight, and just need to get back to what I was??

  8. Reply
    Karla Michelle Krolly June 1, 2017 at 3:58 pm

    will this give u a false postive on a drug sceen

  9. I just purchased this from Walmart.com and haven’t started it yet, because I’m finishing up a bottle of alli, which doesn’t seem to be doing anything other than giving me oily stools. But I’m hanging in there with it and staying on a soft diet, because I have other stomach issues. I had gastric bypass surgery in 2003 and lost 134 pounds, 50 of which I have gained back, as the more I ate the more my stomach started stretching to accommodate the intake. I’ve always had a problem with food getting stuck at the junction of where the stomach and intestines meet, especially meat and bread. I had an EGD a week ago and the doctor found an old ulcer, a new ulcer, and that the opening left from my gastric bypass was too small, so he stretched it a bit. I had gotten to where I couldn’t hardly eat anything without throwing up later. It’s better now, but I still have problems occasionally. I need to get this 50 pounds off and I’m hoping the PhenRx will help me. Has anyone else experienced the same kind of problems that I have?

  10. Great post! Have nice day ! 🙂 xmkyl

  11. Has anyone had a side effect of the worst smelling urine in history?!?! Im talking porta potty smelling piss…this is the worst

  12. I just purchased the topical patches for phenrx. I have been on phentermine before but did have side effects and had to be seen by the dr. every month. I did lose around 35 lbs. I take BP and anxiety medicines and was wondering if this will interact with my medications?

    Leave a reply

    This site uses Akismet to reduce spam. Learn how your comment data is processed.

    Login/Register access is temporary disabled