

💨 Breathe easy, cough smarter — relief that keeps up with your busy life!
Kirkland Signature Mucus Relief Chest Guaifenesin 400 mg offers fast, effective chest congestion relief with 200 immediate release tablets per bottle. This non-drowsy expectorant thins and loosens mucus, making coughs more productive. Trusted for its powerful formula comparable to leading brands, it delivers exceptional value for professionals seeking reliable symptom management without downtime.
| ASIN | B0028K154A |
| ASIN | B0028K154A |
| Active Ingredients | Guaifenesin |
| Age Range Description | Adult |
| Best Sellers Rank | #1,123,738 in Health & Household ( See Top 100 in Health & Household ) #1,957 in Cold & Flu Medicine |
| Brand Name | KIRKLAND |
| Container Type | Bottle |
| Customer Reviews | 4.7 4.7 out of 5 stars (4,677) |
| Date First Available | May 4, 2009 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions | 5.25 x 2.75 x 2.75 inches |
| Item Form | Tablets |
| Item Weight | 8 Ounces |
| Item model number | 363881 |
| Manufacturer | Kirkland Signature |
| Manufacturer | Kirkland Signature |
| Model Name | and Signature Mucus Relief Chest Guaifenesin 400 mg Expectorant - 200 Immediate Release Tablets |
| Model Number | 363881 |
| Net Content Count | 200 Count |
| Number of Items | 1 |
| Package Type Name | Bottle |
| Product Dimensions | 5.25 x 2.75 x 2.75 inches; 8 ounces |
| Target Audience | Unisex-Adults |
| UPC | 885132679252 885168953104 |
| Unit Count | 200 Count |
A**Y
Good Price, Works For Me
If you’ve done a review on Amazon then you know that they ask questions like “how is the flavor?” I’ll tell you how the flavor is….awful. Do not ever bite one of these tablets. If you’re brave, you can try to swallow one whole. I usually cut them in half. Value for the money….Terrific. They may cost a few dollars less at Costco, but who wants to go to Costco. The location in S Ogden, UT, is so busy that I dread going there. I have resorted to buying some of their products on Amazon. Good value and works just as advertised.
M**M
Only thing so far that helps with my chronic gagging and coughing on phlegm
I had this new and sealed large bottle in my cabinet and was thinking of throwing it because I have increasingly bad reactions to Nyquil, Benadryl (hyperactive bladder reaction, dizziness). But I notice it was not the same ingredient so kept it. Just a couple days ago I tried it for my wretched chronic allergy cough due to phlegm from lungs and post nasal drip. Miraculously it worked! I can't tell you what a blessing it is to have any relief at all. I take one pill with a large glass of water every four hours. It does wear off after four hours, so take some with you. It does not seem to have any side affects either. It is also reasonably priced. I highly recommend if you've tried everything with no success. A violent allergy cough can be debilitating and is not solved for very long with cough medicine, even the prescription kind.
M**N
These worked great for me (were COPD-friendly) and helped end my bout with Bronchitis
I have been using this 3 times within the last 5 ears. The prescription version is 600mg (M*U*C*I*N*E*X), and this is 400mg per tablet. It is not fast-working as it takes at least three weeks for the phlegm to loosen up and get out while 2 in the morning and 1-2 at night "Every-other-day". Oftentimes when we are in need, we expect immediate results. This is one that has to be incorporated over a period of time to see results. I have allergies to things such as vehicle emissions, dust, pollenation, grass-cutting, furry pets, etc. I have been using this for 2 and a half months and I am pleased with this product. In 2010 I have a bad bout with bronchitis and this helped me to get rid of fluids that might of led to pneumonia. Also, you have to exercise your lungs by taking deep breaths in and doing "hoo", "huuh", and "haww" short bursts outward. Sort of forcing my lungs to work. And keep your nasal passages clear by blowing your nose frequently. This may work for some, and others not. I am just sharing my experience with this.
M**B
They work very well and you save a bit of money.
For the last few years I’ve had problems with post nasal drip causing a mucus plug in my throat and chest. I coughed a lot during the day and eventually I would be free of the mucus. My doctor after checking me over suggested the over the counter medicine Mucinex. It seemed to work. Just a few coughs and my throat was clear. I don’t have a huge budget so if I can find a less expensive product I’m going to try it. Now buying in quantity is less expensive but you take a chance they won’t work. Well these Kirkland pills did just as good as the brand name and maybe a bit better. So I get the good benefits and I save some money doing it.
K**D
Sinus and fibromyalgia relief for less money, conveniently delivered. Ya can't beat that!
I've relied on guaifenisen for years both to keep from drowning in sinus goo & to help my fibro symptoms. It's great to find some at a decent price. Another thing I love about this particular brand is, unlike the Mucinex & local generic brands, Kirkland doesn't give me intolerable heartburn --there's some inactive ingredient that burns holes in my gut in those other formulae. I recently had to stop using the guaifenisen with dextromethorphan* because the DM was giving me incredible 'Restless Leg' issues, so it was VERY helpful to be able to get this less $$ brand quickly, without having to buy a Costco membership, & then drive there (a major chore where I live). *the DM also helps fibro symptoms as well as nerve pain...I'm real sorry to have to stop using it. Update 1/13: I missed the DM so much --I've had to go back to trying to sleep sitting up, since nerve pain issues already got so much worse w/o the DM-- that I'm trying taking it in the morning only...leaving at least 8-10 hours between taking it & when I might go to bed. Hopefully I can hit a balance between taking enuff DM to help the nerve pain & not enuff to cause the restless legs, which prevent me from sleeping in ANY position.
L**�
Okay, so here's my weird review -
I personally take the 1200 mg extended release. We also use the 600 mg extended release, though they make him (partner) jittery. The 400s, immediate release, dont seem to bother him. These, specifically the Kirkland 400 mg tablets, are scored in the middle. I can easily snap them in half for my 20 year old. He takes a cocktail of anti-epileptics for intractable epilepsy that would make the most jaded DEA agent shake their head; a lot of medicines that are OTC - particularly those that stimulate or suppress the CNS (think antihistamines, decongestants, etc.) are likely to really spurn more seizures. It SUCKS but sometimes I have to become helicopter mom and hover because he just needs the OTC sinus medicine *that bad* or he's just miserable. (He's also developmentally delayed, so he lashes out when he doesn't feel well - maybe thats the male part of him and not the DD [lol].) Anyways, if I split one of these down (to a 200 mg) when I just have to thin his mucus due to allergies, it helps without necessarily causing more seizures. Now for the even weirder part: He also has EoE. The doctor told me to open a Rx steroid med, mix with so manynpackets of Stevie, and have him swallow after he was finished eating & drinking. This kid also has oral motor issues. The doc wanted the impossible. Lo, I figured out which foods cause the flare-ups and if he starts showing symptoms, we give half of a tablet twice a day. Actually helps the EoE better than the Rx (the few times I was able to convince him to try and swallow a 'spoonful of sugar [substitute]').
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