FDA Approved: * March 23, 1978
Pharm Company: * SANDOZ
Category: Antibiotics

* This drug may consist of multiple approval dates, manufacturers, or distributors. If applicable, they would be listed below under "NDC Database Records".

Sulfamethoxazole Overview

Sulfamethoxazole (SMZ or SMX), is an antibiotic. It was used for bacterial infections such as urinary tract infections, bronchitis, and prostatitis and is effective against both gram negative and positive bacteria such as Listeria monocytogenes and E. coli.[1] Common side effects include nausea, vomiting, loss of appetite, and skin rashes. It is a sulfonamide and bacteriostatic. It resembles a component of folic acid. It prevents folic acid synthesis in the bacteria that must synthesize their...

Read more Sulfamethoxazole Details
Details May Include Instructions, Side Effects, Interactions, Etc. Drug monograph is from Wikipedia. All text is available under the terms of the GFDL (GNU Free Documentation License). Source:

Recent Sulfamethoxazole Forums: RSS Feed

sulfamethoxazole tmp ds tablet use
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I would like to take Excedrin for a headache to today. Can I take w the above drug. If not, what could I take?
Updated 3 minutes ago.
drinking alcohol while taking sulfamethoxazole tmp
1 Reply RSS
Hi, I finished taking Sulfamethoxazole on Wednesday and three days later, I drank alcohol. I woke up the next morning with a bad itchy skin rash. Was this caused by the alcohol? The rash came and went that day. Now on day 2, it's pretty much gone, with just a little area under my chin on my neck. Will the rash go away on it's own, and how soon? Thank you. ## Hello, Gugs! How are you? Has there been any change? Since you finished it a few days before, I am rather doubtful that the medication played a role, however, I am not a doctor so I can't say for sure. It would be best to have it checked out to be sure. The FDA lists its typical side effects as possibly including nausea, dizziness, headache, non-allergic (non-itchy) skin rash and diarrhea. And while alcohol can make them...
Updated 1 month ago.
sulfamethoxazole and trimethoprim tablets, usp 800mg/ 160 mg double strenth
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i am giving 15 tablets twice a day to my horse could you tell me what this takes care of for me is it for pain or an antibioc ? want to know what it is for please and thank you ## can i give sulfamethoxazole & trimethoprim 800 mg to horse for cough and inflammation ## Sulfamthoxazole/Trimethoprim Tablets are an antibiotic. Does your horse have and infection or has it been injured, i.e. puncture wound? ## What is the normal dosage for Sulfamethoxazole-Trimethoprim DS 800-160, for horses ## Co-trimoxazole- antibacterial combination of trimethoprim and sulfamethoxazole, in the ratio of 1 to 5, used in the treatment of a variety of bacterial infections. The name co-trimoxazole is the British Approved Name, and has been marketed worldwide under many trade names including Septra (GSK), Ba...
Updated 1 month ago.
Resprim forte (sulfamethoxazole trimethoprim)
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Hi there, I am taking Resprim Forte 160mg/800mg for treatment of a couple of boils on my body. I already had 2 packs and when the boil started coming up again my doc advised me for another 2 packs (2 tabs a day). I noticed that it is affecting my libido. Is it a side effect of these tablets? Please help as my doctor is out on holidays for a few weeks. ## Hello, Delta! How are you? Yes, most medications can cause that as a side effect. The other typical ones, as listed by the U.S. FDA, may possibly include nausea, dizziness, headache, non-allergic skin rash and diarrhea. Is there anything else I can help with? ## Thanks Verwon!! Just want know will this side effect be gone once I finish with my medication, as it is affecting my married life as well in terms of my libido... Or do I need t...
Updated 1 month ago.
drank alcohol while taking sulfamethoxazole
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My boyfriend drank while on sulfamethoxazole. Now he feels like poop. He is suffering. So my question is, what now? Should he go to the drs again? Wait it out? Obviously he isn't drinking tonight, lol but i also think he should wait to continue the prescription, once the alcohol is out of his system.... These are being taken for more of a "preventive" infection from a spider bite he got at work. So, once he's free of these nasty enhanced side effects he can then continue the prescription (he only took 2 pills, before consuming beer). Thanks in advance. Oh and if you are thinking of drinking while on this, i would think twice. Its equivalent to the flu. ## Hello, Crystal! How are you? Unless his doctor instructs otherwise, it really should just be a matter of waiting it o...
Updated 2 months ago.
sulfamethoxazole safe to use
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I have taken cephalexin for my post unbilical hernia surgery and developed a rash. I have read bad reviews on this medicine and have been in and out of er. Whats the worst these pills do? ## Hello, Nicole! How are you? If you're allergic to an antibiotic, an anaphylactic reaction could be fatal, but it could also be as mild as a skin rash, hives, swollen/painful glands and headaches, according to the FDA. The typical side effects usually include nausea, dizziness, non-allergic skin rash and diarrhea. Is there anything else I can help with?
Updated 2 months ago.
sulfamethoxazole trimethoprim dosage
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I have the 800mg/160mg pills and want to cut them up to give to a dog with a UTI but I am unsure which mg dose I use to figure out how much to give to a 10# dog. Other web sites say 13mg per lb every 24hrs for dogs which would be 130mg a day, is that based on the 800mg of Sulfa. or the 160mg of the Trip? ## I have a dog approximatel 25 lbs or less. She frequently trys to pee and I have on hand SMZ TMP DS 800/160 how much do I give her.
Updated 2 months ago.
sulfamethoxazole tmp ds tablet side effects
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I had a pillar cyst removed from the back of my head and the wound got infected, so the doctor prescribed this med to clear it up. Wow! I have never had an allergic reaction to anything in my life, but this drug knocked me for a loop. I thought I had the stomach flu one day--kept trying to throw up, diarrhea, stiff neck, headache, feverish, affected my vision. I slept the entire day. I stopped taking the med because my stomach wouldn't tolerate anything. The next day, I started to feel better, so started back on the med and the symptoms came back with a venegaence--. that's when I looked up the side effects and called the doctor. I got into the shower after that and noticed I had a horrible rash all over the upper part of my body. It's been almost 24 hours since I stopped ta...
Updated 3 months ago.
Need help with side effects from sulfamethoxazole tmp ds
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Friend needs help. Treated with this medication for infected skin strep. Has fever to the point of chattering teeth, major body aches, extreme fatigue, splitting headache, diarrhea. Went to doctor who just told him not to take meds anymore. Any suggestions on how to help? ## Hello, Cliff! How is your friend doing? Unfortunately, those can be side effects of this medication and, once it is discontinued, the only thing that will help is time. I had a bad allergic reaction to it several years ago and it took about 2 weeks for all of the symptoms to go away. If his doctor approves, some Benadryl may help with some of the symptoms, as well as Imodium for the diarrhea. Beyond that, it's just a waiting game. However, as explained by the NIH, such side effects or allergic reactions tend to ...
Updated 3 months ago.
how long does it take sulfamethoxazole to work .
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My husband has been on this med for 2 days and feels terrible. How long should it be defore he feels better. Thanks ## Hello, Darothy! How are you? Has there been any change, yet? The general rule with antibiotics is that if they are working, you shouldn't see any worsening of the infection after taking them for a full 24 hours and you should start to see improvement after taking them for a full 72 hours. The FDA lists the typical side effects of this medication as possibly including nausea, dizziness, headache, non-allergic skin rash and diarrhea. Is there anything else I can help with?
Updated 3 months ago.

Possible Dosages for this and Related Drugs:

  • Suspension: 500mg/5ml
  • Tablet: 1gm, 500mg
Note: Above list includes dosages for all drugs with the same combination of active ingredients.

NDC Database Records for Sulfamethoxazole: (1 result)

Sorted by National Drug Code
  • 52125-035 Smx 800 mg / Tmp 160 mg Oral Tablet by Remedyrepack Inc.

Other drugs which contain Sulfamethoxazole or a similar ingredient: (8 results)

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