Updated: 01/10/2018

I’m here to cut through the noise and get you to the bottom line on Diurex. Our in-depth review examined the ingredients, side effects, and scientific studies. Additionally, we picked apart hundreds of user comments. Then, we condensed and summarized to give you with the info you need.

Diurex Readers: Click here to find out why we're giving away samples of our product, Burn HD.

What is Diurex?

First off, Diurex is a brand of over-the-counter water pills. The ingredients are magnesium and caffeine. Other brands under Diurex These are intended to “temporarily” reduce bloating and excess water weight. Typically, you’ll take one or two capsules per day.

Alva-Amco Pharmacal, a company dating back to 1904, makes Diurex. Local drugstores and online retailers sell the supplement. We like that is contains a few natural ingredients and that we found some positive customer comments, but read on…

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Can Diurex Water Pills Cause Side Effects?

The first issue centered on Diurex side effects. “Whenever you choose a new supplement you need to take into consideration how it will makes you feel,” said our Research Editor. “In this case, users have reported some adverse reactions.”

One customer commented, “Diurex causes diarrhea.”

“Just makes me nauseous,” said another user.

Although some users experienced side effects, we found that others didn’t.

“Gave me a slight headache, but it went away when I drank a couple glasses of water,” stated a customer.

Does Diurex Ultra Help With Water Weight?

According to Diurex reviews, some users didn’t see and solid results. One customer revealed, “Didn’t lose a single pound. These just make you pee a lot.”

Another user said, “No weight-loss from this.”

While there are comments about not seeing any changes, there are the occasional review of Diurex talking about seeing positive results.

“Took it for a few days and my jeans fit better than before,” said a user.

“Dropped a couple of pounds,” reported another.

According to our research, long-term success is limited when a supplement doesn’t produce solid results. There’s a bigger issue if dieters use Diurex and don’t notice any changes.

The Science Supporting Diurex Ingredients?

There’s no clinical research presented on the official website about Diurex water pills. However, this product does contain solubolized pamabrom; which acts as a diuretic and may help remove excess water weight from the body. The chances of long-term weight-loss are slim, considering it doesn’t contains fat burners or metabolism boosters. Science-based facts are critical to us at DietSpotlight. There are concerns when it’s missing.

What Users Are Saying

"This product certainly helps to remove excess water and is gentle enough to take on a regular basis. Would highly recommend the product especially if you have light to moderate problems with water retention."

"This worked really well on getting rid of unwanted bloat. Just take a pill at lunch and make sure you drink a TON of water throughout the day. It does have caffeine in it so beware of your caffeine intake and don’t take too late in the day. Definitely feel skinnier when I take this–although it is not a long term solution for weight loss–more like if you have an important even coming up where you’d like to appear thinner."

"It seems to work ok. The jitters from the caffeine are too much to handle. Even if I skip the coffee on days I take this, it’s still intolerable."

The Bottom Line – Does Diurex Work?

Hold up just one more minute, here are our final thoughts on Diurex water pills. We like that the ingredients are natural and it may help with water retention. But, we’re concerned about the lack of research connecting this one to weight-loss. There’s also an issue with customer reviews talking about negative side effects.

If you need to see faster fat loss results and a slimmer figure, we encourage you to choose a diet supplement packed with clinically-tested ingredients, not connected to harmful side effects and supported by positive user feedback.

Among the best products we’ve seen this year is one called Dietspotlight Burn. This weight-loss pill contains four clinically-tested ingredients that have been shown to help boost metabolism and increase fat loss. There’s no chatter about harmful side effects and user feedback mentions people are seeing great results.

Also, the company that makes Dietspotlight Burn is so confident in the formula they’re offering a Special Trial Offer, which is quite a good sign.

Learn More About Burn HD »
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What are the side effects of Diurex?

Diurex side effects may include frequent urination, increased heartrate and blood pressure, sleeplessness, irritability and nervousness.

What are the ingredients in Diurex?

Diurex ingredients are caffeine and magnesium salicylate.

How do I know if Diurex is right for me?

Choosing the right product is the #1 question asked by DietSpotlight readers. We recommend trying any product before buying it and know that finding a product with a sample offer is near impossible - so we created our own product, Burn HD, with scientifically backed ingredients.

Click here to get your sample of our powerful fat burner today.

What is the main ingredient in Diurex?

The main ingredients in Diurex are the diuretic caffeine and the non-steroidal, anti-inflammatory analgesic, Magnesium Salicylate.

Does Diurex work?

There’s no solid science linking the ingredients in Diurex to weight-loss. We found studies supporting the effectiveness of caffeine, but nothing that is just about this supplement.

How much does Diurex cost?

Diurex costs $7.56. Considering the supplement is available through various retailers, the price could change.

How should I take Diurex?

You should take three to four Diurex capsules while symptoms persist. The company suggests not taking more than four pills in one day.

How long can I use Diurex?

You can use Diur continuously for 10 days.

Can men use Diurex?

Yes, men can use Diurex. As a precaution, you should consult with a healthcare provider prior to using weight-loss supplements.

What is Diurex Max?

Diurex Max contains the highest strength recognized medically of the gentle and efficient, Diurex diuretic in a single caplet.

What is Diurex water pills used for?

The Diurex water pill is a diuretic that is used to increase the emptying of excess water from the body responsively and relieves pressure-related cramps, monthly weight gain from water retention, swelling, and puffiness.

Diurex Ingredients

Diurex is a diuretic designed for women to supposedly relieve menstrual cramps, bloating, and decrease water weight gain before or after their menstrual cycle.

Diurex Ingredients and Supplement Facts

Serving Size: Varies
Serving Per Container: 42
Amount per Serving% DV
Caffeine Anhydrous50mg*
Magnesium Salicylate (NSAID)162.5mg*

Other Ingredients: Acacia, calcium carbonate, corn starch, crospovidone, fd&c blue #1 lake, hypromellose, magnesium stearate, maltodextrin, methylene blue, microcrystalline cellulose, mineral oil, polyethylene glycol, polysorbate, shellac, silica, sodium glycolate, stearic acid, talc, titanium dioxide, triacentin

We dug deep into the Diurex ingredients to give you the details you need.

Solubolized Pamabrom

Solubolized pamabrom is a diuretic used in over-the-counter medications. The active ingredient is 8-bromotheophylline.

What is it Supposed to Do?

It works by increasing urine output and is used to treat bloating, swelling, and other signs of water weight gain, usually related to menstrual symptoms.

Clinical Research

According to a study published in Expert Opinion on Pharmacotherapy, “The clinical evidence regarding the association with pamabrom is even more scarce. Well-designed, randomised, controlled trials are required to demonstrate the efficacy of the combination of acetaminophen plus pamabrom in the treatment of primary dysmenorrhoea.”

It’s important to find solid clinical research to support the supplement you’re considering when you choose a dietary supplement for any purpose. You may want to take a look at a product like Dietspotlight Burn, which is made using clinically-tested ingredients.

Caffeine Anhydrous

This is a form of caffeine without water. Caffeine is naturally found in tea and coffee, and is added to some soft drinks. It’s also available in pill form.

What is it Supposed to Do?

It is a stimulant that’s supposed to help boost the metabolism.

Clinical Research

According to a study published by the Human Behavioral Pharmacology Laboratory at the University of Vermont’s Department of Psychiatry, “These results replicate prior results and suggest that caffeine, at doses commonly found in teas and sodas, can function as a reinforcer.”

Is There Anything Out There That TRULY Works?

We have our eye on a supplement that fits the bill. Dietspotlight Burn, which is formulated with ingredients that HAVE been clinically tested, may be a good option. All customers can take advantage of a Special Trial Offer, currently available through the manufacturer. Click above to give it a shot.

  • References
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Previous Diurex Review (Updated July 9, 2014):

What You Should Know about Diurex

Diurex is a dietary supplement that is manufactured by Alva-Amco Pharmacal Companies, Inc., a company founded in 1904. It is marketed towards both women and men. This product aims to assist with discomforts by reducing "excess body water." There are actually five separate versions of Diurex for women; Diurex Aquagels, Diurex Water Capsules, Diurex Water Caplets, Diurex PMS and Diurex Water Pills. There do not appear to be any customer testimonials for this product. Diurex supplements can be purchased in most common drugstores and grocery stores.

The active ingredient found in Diurex supplements is Solubilized Pamabrom (diuretic that is stated to assist with bloating). Diurex endeavors to aid women with monthly swelling, bloating, water weight gain and puffiness due to their menstrual cycle. These diet supplements are stated to be free of aspirin and caffeine. Unfortunately there are no free trial samples of Diurex products available through the official website. Diurex is available without a prescription, but doesn't appear to be offered with a 100% money-back/satisfaction guarantee. There is no diet plan or fitness regimen recommended with Diurex supplements. The version of Diurex for men also aims to help minimize unwanted water weight. There doesn't appear to be any actual clinical research provided on the official website. This product sells for $25.74 for a 60 count of pills.

List of Diurex Ingredients

Solubilized Pamabrom, FD&C Blue #1, Gelatin, Glycerin, Hypromellose, Polyethylene Glycol, Povidone, Propylene Glycol, Purified Water, Sorbitol and Titanium Dioxide.

Product Features

Diurex is a dietary supplement that is claimed to assist women and men with water weight reduction and bloating. This product comes in five different forms and is directed to be taken with water after breakfast. The primary active component incorporated into Diurex is Solubilized Pamabrom, a diuretic that is stated to assist with bloating. This weight reduction supplement can be acquired in most typical grocery stores and drugstores. There is no clinical data offered on the website for Diurex supplements. Diurex sells for $25.74 and is available without a prescription.

Advantages of Diurex

  • Diurex can be easily and conveniently purchased in most common drug and grocery stores.
  • Diurex is available to both men and women.
  • A full ingredient list is offered on the official website for Diurex supplements.

Disadvantages of Diurex

  • There are no customer testimonials for Diurex offered on the official website.
  • Some ingredients found in Diurex supplements may not be suitable for some individuals. (See Diurex Side Effects).
  • Diurex does not actually sell conveniently through the official website.
  • Using a diuretic to achieve significant weight loss can be unhealthy, and any weight loss users do see will likely not last very long.
  • Diurex supplements are not offered with a 100% money-back guarantee.
  • There are no free trial samples of Diurex products available through the official website at this time.

Conclusion on Diurex

Diurex is pitched rather differently than most weight reduction supplements. This product doesn't endeavor to suppress the user's appetite, burn calories, boost energy levels, assist the metabolism or burn away unwanted fat. Diurex mainly addresses water weight gain and the menstrual cycle of women. Therefore it's probably wise to investigate a number of other diet drugs before selecting a diuretic such as Diurex. In the end, it would be more reassuring to see some clinical data posted on the official website, along with some customer testimonials for Diurex and a 100% money-back guarantee.

Summer Banks Dietspotlight Author
About the Author:

Summer Banks, Director of Content at Dietspotlight, has researched over 5000 weight-loss programs, pills, shakes and diet plans. Previously, she managed 15 supplement brands, worked with doctors specializing in weight loss and completed coursework in nutrition at Stanford University. full bio.

55 Diurex Reviews

  • Can diurex cause stomac issues?

    Can diurex cause stomac issues?

    • JC

      I have taken it in the past for water weight gain and it worked great. Last night and this morning I took a capsule and have had horrible stomach pain. So, I was also wondering if it causes stomach issues?

      • paula

        Hello JC. All users are different and can experience different side effects, but please make sure to consult with your physician before continuing taking this product if you are still having side effects.

      • Shamone Rushing

        What u mean it causes stomach issues because I’m take em because my doctor give some quetiapine I couldn’t sleep at night and feet start Sewell up

  • Would it help get rid of next day drinker bloating?

    I wonder if it would help get rid of next day drinker bloating. Any help would be apreciated

    • Your Name

      Worked for me after too much champagne

    • Maribel (Editor)

      Hello Gary. that increases the flow of urine and gets excess water and also toxins out of your body. However, if you’re looking to lose-weight its best to limit your alcohol intake. Dietspotlight Burn can help you lose fast quicker and get a slimmer figure. Go ahead and take a look…

  • Questions about ingredients

    do these contain asprin?

  • can you take this product with a uti infection?
    dawn (Verified User)

    can you take this product with a uti infection?

    • Maribel (Editor)

      Hello Dawm, because of possible interactions, please make sure to consult with your physician before taking this product.

  • Minis

    Does anybody knows which one is better? Diurex ultra or diurex max? I am very concerned about this pills I’ve been reading a lot of good comments but nobody says which one is the best.

  • meme

    Do water pills really work?

    • Anna (Editor)

      Hello. if used as instructed and you continue to hydrate yourself with water, you should be fine. Unless of course, you experience other side-effects that can cause dehydration. For weight-loss Dietspotlight Burn does the job, it burns fat, increases energy and boosts your metabolism.

    • Richard (Editor)

      Hi Meme. In as few as two weeks after starting a regimen taking the pills, conclusive, positive results have shown.

  • Amy

    Hi, I just took the water pill for the first time ever! Right after I took it maybe 1 hour later I started to become very weak and dizzy. I couldn’t stand up without getting that blurry light head feeling. I took them because I am on a diet and eat only non fat low calorie foods and exercise but jeans got tight so I thought maybe I’m retaining water. I have a 400- 600 calorie count a day I can’t fit in my jeans for some reason I eat only veggies or yogurt. I do not know why my jeans feel tight. I want to eat like everyone else but I gain weight so easy. Even with a 500 calorie count of healthy food I still can’t lose weight!

    • Marissa

      You should never eat less than 1,500 calories….your body is in starvation mode which is why you are not losing weight/don’t feel well. Start at 1,200 calories a day and then slowly increase/add excersise.

  • Hayley

    I am thinking about using Duirex because I start retaining a lot water during my period. I also take prescription medications at night and in the morning. Before I take take these I would like to know: Will Duirex deplete my prescription medications??

    • Veronica

      Hi Hayley. Please consult with your physician before taking this product because of possible interactions with your medications.

    • Cat

      Diurex is known to interfere with a few different medications. I would definitely talk to a doctor.

  • Help!!!
    No name(Dawn)

    Hi I am on a drug called methadone and bought Diurex ultimate today and it says contains 100mg of caffeine and it’s a blue box. I’ve been reading all these comments and it’s kinda scaring me now… anyone have any ideas/opinions??

    • Victoria (Editor)

      Hi! Because of possible interactions with medications, please make sure to consult with your physician before taking this product.

  •  I don't feel as bloated
    amanda (Verified User)

    I started using diurex because I was bloated all the time period or not. I also gained about 10 pounds in 3 weeks and couldn’t figure out why. My mom suggested maybe I was retaining fluid and try a water pill. So I started taking it I went from 164 to 160 over night. I don’t feel as bloated, I’m only on day 2 but I feel good about taking this on a regular basis.

  •  Information about ingredients
    Candy Muncy Poole (Verified User)

    I’m looking at the list of ingredients on Diurex Water pills and the only two stated (active) ingredients ARE caffeine and Magnesium Salicylate (NSAID)in contradiction to the description and ingredients listed above.

    • Andrew (Editor)

      Hi Candy. Thank you for pointing out the incorrect information. The ingredients listed were for Diurex Max, instead of Diurex. It has since been changed.

  • Is this a side effect?
    Chrissy Vedder (Verified User)

    Now have a bladder infection… Is this a side effect of Diurex Max??

    • Susan Amin

      Using Diurex Max for the first time make me pee a lot and i must say please be aware
      if you have a sensitive stomach stay away from Diurex Max
      this product causes diarrhea …. but its cleans me out
      i continued to used the product
      I look up the side effect online, but there isn’t any

    • Andrew (Editor)

      Hi Chrissy. While there’s no mention of this being a side effect of Diurex Max, you may want to contact a doctor if this reactions continues.

  • urinating norma

    I have been using Diurex Ultra 2 pills a day for 2 days now but I have been urinating normal. I do not have to Uring more and usual is that normal or not?

  •  This really works! lost 8lbs.
    big red (Verified User)

    this really works! lost 8lbs. of water weight in 2 days

  •  Facing side effects.
    Ree8013 (Verified User)

    I tried this last month for my period bloating. And it seemed to work. I didn’t feel bloated. But I didn’t have any weight loss results to my satisfaction. Except for about 4 lbs that came back right after my period. You definitely need to eat before you take it. I took some before bed (no caffeine) and quickly discovered it made me feel nauseous. I took two tums to calm the feeling of wanting to get sick. If your trying to loose weight I would recommend diet, exercise, and some good appetite suppressant. Like Zyatonix. Free warning Zyatonix has unpleasant side affects too.

  •  No
    kiki (Verified User)


  • Water pills concern
    Christine Quinn (Verified User)

    How long will my pee stay green after taking Duirex water pills?

    • LB

      Not long at all. Also, I lost 25 pounds in 8 months on Diurex; BUT I also cut my sodium intake down quite a bit by not eating any processed foods (like frozen dinners, pizzas, salty snacks, etc.), eating Greek yogurt with fresh fruit 7 drinking a lot of sparkling water constantly. Also, threw in walking in pool for 2-3 hours for 1st 2 months. Also, cut way down on sweets. I’m in my early 60’s & cut my size from 12 to size 6. It can be done. Plus no large meals after 8PM at nite (I stay up til midnite).

  • How to take Diurex?

    i bought diurex max. cant find box. how often are you supposed to take them?

    • Your Name

      Every 6 hours…. After u eat in the morning… Glass of water….nomore than 6 pills a day

    • Andrew (Editor)

      Hi Darlene. According to the Diurex Max label on the official website:

      Adults: One (1) caplet after breakfast with a full glass of water.
      ■ Dose may be repeated after 6 hours, not to exceed four (4) caplets in 24 hours.
      ■ Start taking 5 or 6 days before onset of period and continue until desired relief
      is obtained or end of period. ■ Drink 6 to 8 glasses of water daily. ■ For use by
      normally healthy adults only. ■ Persons under 18 years of age should use only
      as directed by a doctor.

  • Need to know the effectivity
    S (Verified User)

    Your article stated, if I am correct, that, Diurex does NOT contain aspirin or CAFFEINE.
    I purchased Diurex Water Pills ( blue & pale green box from Walgreens) It clearly states Caffeine 50mg.
    Do the pills work?
    It says to take 2 pills every 4 hours, 8 total per day.
    Even with 8 pills… I am still very bloated.
    I’ll have to see what the Doctor prescribes.
    Online, Walgreens advertised the pills as 3.99, and the store charged 5.99.
    As of today…, unfortunately, (and, perhaps I might be suffering of some oddball situation…), but,
    I presently believe the product to be totally worthless.

    I also was unable to sleep until 3AM………
    I am not certain that this product is good for anyone.

    The Health Dept… should verify all these products… Why foolishly spend money on products that do not work, and, or, might detrimentally affect someone’s well being?

    • Michelle

      Did you lose any of the swelling, taking this? I just got it because I have been on steroids for so long and I am tired of having a swollen face/ body.

  •  It works but buy the right one.
    Dr. Dad (Verified User)

    Diurex works, but you need to buy the right one. I read labels. There is one who’s main ingredient is caffeine. I bought the one who’s main ingredient is Solubilized Pamabrom. Whether or not it works for hypertention I don’t know but my wife took it and she lost 8lbs in 2 days, however she was a little peeved about urinating so much.

    • KT

      so which one should i get? the one with caffeine or solubilized pamabrom?!?!

      • Monica

        solubilized pamabrom

    • Patricia Williams

      How do you think she was going to release the water from her body??? Peeing is the only way!! Ugh!!

  • Tabitha

    I have been using this for a bit now and I went to the doctors the first time and I lost 8 lbs the first time then when I went back 2 weeks later another 7 🙂

  •  It is such a waste of money.
    California Girl (Verified User)

    Do not waste your money with Diurex, I took it for a week and saw no results. The only thing I noticed was that my urine was blue-ish, other than that nothing. It is such a waste of money.

  •  I would highly suggest it
    Jenn (Verified User)

    My dad and I both have been trying to lose weight forever! Neither of us are obese, just trying to shed acouple pounds. He lost 7 pounds using this pill in 4 days. After he told me that I bought it. I started using it roughly 5 days ago and I feel like I’m losing weight. I don’t weigh myself, but my jeans are fitting much better and my tummy doesnt look bloated. It makes you pee alot and yes the green is normal.. it tells you that on the box. I’m for sure going to continue using Diurex and would highly suggest it for anyone trying to shed afew. Of course the weight you lose can come back.. as with any diet… but take this pill, eat healthier and smaller portions, and drink water instead of soda an you’ll be good to go! 🙂

  • does this help hypertension?

    does this help hypertension?

    • Joe

      Typicaly something stronger will be prescribed for hypertension, but in theory it should have a positive effect.

  •  Product just wasn’t for me
    beverly (Verified User)

    it takes about 3 doses to really start working for me,and yes, it does turn your urine blue-or green, depending lol. I have terrible bloating and it really helps. the only hard part is predicting when, so I can get the 3 dose head start.

  • Medication causing urine to turn bright green color?
    Lois Bocchicchio

    Have there been any reports of this medication causing urine to turn a bright green color?

    • Anonymous

      Yes… It’s right on the box and it’s caused by the blue food dye to make the caplets “pretty”! :D)

  •  product just wasn’t for me
    michelle Melton (Verified User)

    this product did not work for me at all!

  •  Hated the product
    Lina (Verified User)

    Doesn’t work … don’t waste your money

  • Can't see on the website.
    Shannon Hensley- Silver Spring- Maryland

    I had to Google search Diurex for Men and found it tucked away in the website where you can’t see it. Since they don’t advertise it up front do they even make it? because I don’t see it anywhere in the stores.

  •  i really think this is good for me
    hakima leslie (Verified User)

    i really think this is good for me i feel a like better now since i use diurex but it may not be for everyone but it has help me.

  • Does Diurex help hypertension?

    Does Diurex help hypertension?