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Doctor insights on: Bactrim Insomnia

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I get insomnia from bactrim (sulfamethoxazole and trimethoprim) ds 800-160. How long after taking a pill might this impact me?

I get insomnia from bactrim (sulfamethoxazole and trimethoprim) ds 800-160. How long after taking a pill might this impact me?

See answer: The half-life of a drug is the time it takes for a drug to lose half (50%) of its pharmacologic or physiologic properties. The half-life of the two drug ingredients in Bactrim (sulfamethoxazole and trimethoprim) are 8 and 10 hrs. Therefore, after 5 half-lifes or 40 and 50 hrs for the 2 drugs, 97% of the drugs will be out of your system (~2 days). One would expect any related insomnia to be short? ...Read more

Dr. Heidi Fowler
1,709 Doctors shared insights

Insomnia (Definition)

A sleep disorder in which you cannot fall or stay asleep. It usually accompanies another sleep, medical, or psychiatric disorder, and can lead to memory impairment, mood changes, and increased risk of ...Read more


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After taking Bactrim (sulfamethoxazole and trimethoprim) ds twice daily for five days, last pill was this a.m. Still have burning and pain from a bladder infection. Terrible insomnia too?

After taking Bactrim (sulfamethoxazole and trimethoprim) ds twice daily for five days, last pill was this a.m. Still have burning and pain from a bladder infection. Terrible insomnia too?

If you still: Have urinary symptoms despite a course of Bactrim (sulfamethoxazole and trimethoprim) DS, you might have persistent uti with resistant bacteria. Get back to your doctor. Insomnia is probably not related to Bactrim (sulfamethoxazole and trimethoprim). ...Read more

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Can 800 mg bactrim affect nexplanon?

Can 800 mg bactrim affect nexplanon?

Safe: Drugs. Com drug interaction checker showed no significant interactions between Bactrim (sulfamethoxazole / trimethoprim) & Nexplanon (etonogestrel). ...Read more

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How effective is sulfamethoxazole_/_trimethoprim (Bactrim) for treating dysentery?

How effective is sulfamethoxazole_/_trimethoprim (Bactrim) for treating dysentery?

Bactrim: Trimethoprim-sulfamethoxazole or Bactrim should be an effective drug for dysentry. Hopefully your doctor obtained a stool culture which gives the name of the infecting organism, and the sensitivities of the germ. Armed with that information in hand, the best therapy can be prescribed. About 10% of people have side effects from Bactrim - if that's you- call the doc back for new recommendations. ...Read more

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What are bactrim/septra best used for?

What are bactrim/septra best used for?

See below: They are sulfa based drugs often used to treat urinary tract infections. They are also used to treat MRSA infections. ...Read more

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Conflicted on if it is okay to have a couple beers while on bactrim. Will I be okay? No hard liquor.

Conflicted on if it is okay to have a couple beers while on bactrim. Will I be okay? No hard liquor.

No problem: Contrary to popular beliefs, there usually is no problem drinking alcohol (in moderation) while taking antibiotics, including Bactrim. Just don't overdo it. ...Read more

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I'm on bactrim and everytime I smoke it makes me feel really nauseous, should I quit while I'm taking the medication?

I'm on bactrim and everytime I smoke it makes me feel really nauseous, should I quit while I'm taking the medication?

Good question: Your question should be, what is more important, your health or your need to smoke. This symptom of nausea is a wake up call TO STOP SMOKING forever and continue to take the Bactrim to rid yourself of the infection. I know it can be hard to stop smoking, but as is said the journey of a long life starts with the first step and that step is to stop smoking to avoid cancer & lung disease. ...Read more

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Can I take pepto bismuth while taking Bactrim?

Can I take pepto bismuth while taking Bactrim?

Interaction: Your physician or pharmacist can answer your question. I think it's ok to take peptobismol as long as you wait an hour or two after taking the bactrim. Bear in mind that peptobismol often causes the stool to be black. ...Read more

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Can I take acetaminophen while taking Bactrim?

Can I take acetaminophen while taking Bactrim?

Sounds ok: If a normal person has taken acetaminophen (Tylenol) in the past without getting side effects, and has taken Bactrim in the past without getting side effects, then she should be able to take them together without problem. The two drugs don't create a problem together. However, some people eventually get allergic to Bactrim, so one should call her doctor if a reddish rash develops after Bactrim. ...Read more

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Can you still feel tired and no energy a few days after stopping Bactrim DS?

Probably not bactrim: Bactrim is not a likely cause of such symptoms, and therefore no surprise stopping it hasn't made any difference. Work with your doctor about other causes. Good luck. ...Read more

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If I take one bactrim, how long before I can take cipro (ciprofloxacin) again?

If I take one bactrim, how long before I can take cipro (ciprofloxacin) again?

Now: Cipro (ciprofloxacin) and Bactrim are both anti-biotics. They could potentially be taken at the same time. Why 1 bactrim? If you are treating a urinary tract infection often, the Cipro (ciprofloxacin) would be sufficient. This treatment should not be without medical supervision, please consult your prescriber or pharmacist for further assistance. ...Read more

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Can bactrim treat gonnorhea? Was prescribed for UTI but also tested possitive for gonnorhea.

Can bactrim treat gonnorhea? Was prescribed for UTI but also tested possitive for gonnorhea.

Gonorrhea treatment: Trimethoprim-sulfamethoxazole (Bactrim®) is not recommended or reliable against gonorrhea. It might work but is dangerously risky; you need proper gonorrhea treatment with an injection of ceftriaxone plus either azithromycin or doxycycline. Contact your doctor immediately to arrange treatment. Also make sure all recent (1-2 mo.) sex partners are tested and treated. Good luck! ...Read more

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I was just diagnosed with ca-mrsa and I'm scared since it is often resistant to drugs. I just started bactrim ds tonight. What are the chances of it not responding to any drug? How can you know if it's caught early enough? Thank you!

I was just diagnosed with ca-mrsa and I'm scared since it is often resistant to drugs. I just started bactrim ds tonight. What are the chances of it not responding to any drug? How can you know if it's caught early enough? Thank you!

Partially resistant: Ca MRSA is not particularly worse than having regular staph infection. It is not related to the flesh eating bacteria scare. The choice of antibiotics is limited, but generally the infection is sensitive to at least a few of the mainstream antibiotics of which Bactrim (sulfamethoxazole and trimethoprim) is one. If your doctor thought you were at great risk you would not be at home. ...Read more

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Can bactrim/sulfameth help clear chlamydia?

Can bactrim/sulfameth help clear chlamydia?

No: This would not be adequate treatment for chlamydia.Erythromycin like drugs, tetracyclines and occasionally the floxins (ofloxacin) are used to treat this family of germs. ...Read more

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Can I smoke marijuana while taking bactrim?

Can I smoke marijuana while taking bactrim?

Antibiotics: Smoking marijuana shouldn't have any effect on the antibiotics. ...Read more

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Can or should you drink alcohol while taking Bactrim?

Can or should you drink alcohol while taking Bactrim?

Would hold off.: Using Bactrim (sulfamethoxazole / trimethoprim) & Alcohol together may cause rapid heart rate, nausea, vomiting & warm / red skin. These would be unpleasant side effects. ...Read more

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What's better for strept cipro (ciprofloxacin) or bactrim?

What's better for strept cipro (ciprofloxacin) or bactrim?

Neither actually: If you are talking about a group a strep infection, such as strep throat, an antibiotic in the penicillin family (penicillin, amoxicillin, etc.) is the preferred treatment. Otherwise a cephalosporin such as Cephalexin (keflex) is a good alternative. ...Read more

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If im not allergic to bactrim can I be allergic to cipro (ciprofloxacin)?

Not likely: Just because you have an allergy to Bactrim doesn't put you at increased risk for developing an allergy to cipro (ciprofloxacin). There are lots of options for antibiotics that don't cross-react with sulfa drugs so you should be fine. If you want to understand your drug allergy in more detail see a board certified Allergist for further workup and evaluation. ...Read more

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I had a UTI in November, took Bactrim/Co - Trimoxazole DS. Possible to get meds without test?

I had a UTI in November, took Bactrim/Co - Trimoxazole DS. Possible to get meds without test?

Try HealthTap PRIME: HealthTap PRIME doctors see and treat you, via smartphone, tablet, or laptop. They can see photos you upload into your FILES. PRIME can be accessed from anywhere in the world, and patients just have a monthly subscription fee. Sometimes a prescription for a UTI can be done on PRIME, but sometimes it cannot (depends on the individual circumstances). Fees are the same with or without a prescription. ...Read more

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Bactrim ds 800.2x daily for cellulitis. How long before improvement. I'm on day 3. If I were to have an allergic reaction would I know by now.? Ty

Bactrim ds 800.2x daily for cellulitis. How long before improvement. I'm on day 3. If I were to have an allergic reaction would I know by now.? Ty

Yes,: However, there are still chances of developing allergic reaction later, but would be small and mild as time goes by. Regarding improvement, it depends on site, size, general condition, drugs used, etc, in general, if no improvement after few days, the management plan should be revisited, best wishes ...Read more

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Can I take a probiotic while on Bactrim (3 day treatment)? If so, how should I time the doses of the probitoics (how long before or after Bactrim)?

Can I take a probiotic while on Bactrim (3 day treatment)? If so, how should I time the doses of the probitoics (how long before or after Bactrim)?

Yes: Ok to take probiotic. Can take it any time will not interact with Bactrim. Follow the OTC (over the counter) pharmacy label directions for best use. ...Read more

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My motherinlaw is allergic to Bactrim Sulfa drugs. They have her zinc sulfate and she broke out in rash. I thought sulfate was different. Why rash?

My motherinlaw is allergic to Bactrim Sulfa drugs. They have her zinc sulfate and she broke out in rash. I thought sulfate was different. Why rash?

New allergy: You are correct that there is not a relationship between sulfa and sulfate, but some patients can develop an allergy to other things, or the rash is unrelated to the zinc sulfate. Rashes really need to be seen to be accurately diagnosed. ...Read more

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I still have a couple of sores that haven't scabbed over yet but appear to be getting smaller, would I still be contagious? Taking bactroban&bactrim

I still have a couple of sores that haven't scabbed over yet but appear to be getting smaller, would I still be contagious? Taking bactroban&bactrim

Cant answer this: What are the sores due to? Are you speaking about chicken pox? If they are all scabbed over you are no longer contagious. If you did not have chickenpox, the question cannot be answered without knowing the source of the wounds. ...Read more

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How long after starting bactrim will it take for a uti to clear up? I'm going on day 3 and it still feels like my bladder isn't emptying completely.

How long after starting bactrim will it take for a uti to clear up? I'm going on day 3 and it still feels like my bladder isn't emptying completely.

Resistant germs: If you are not getting better from these antibiotics, I would worry about the germ being 'resistant'. This is an increasingly common problem these days- for multiple reasons... I would DEFINITELY check back with the doc who ordered the medication-hopefully they did a urinary culture, which would serve as a guide to the best therapy. You should be better by now. I would drink LOTS of water too ...Read more

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Got bit by a brown recluse on my back went to the er was put in bactrim and was told to watch the site for further progressions how long will this las?

Got bit by a brown recluse on my back went to the er was put in bactrim and was told to watch the site for further progressions how long will this las?

Serious sting: Brown recluse spider bites can lead to very serious after effects. If indeed you were stung by a brown recluse spider you may experience progressive local necrosis or something equally bad. I would strongly advise you to ask your primary care physician to refer you to a infectious disease specialist for a second opinion very soon. ...Read more

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What is Bactrim (sulfamethoxazole and trimethoprim)?

What is Bactrim (sulfamethoxazole and trimethoprim)?

Bactrim (sulfamethoxazole and trimethoprim): Bactrim (sulfamethoxazole and trimethoprim) contains sulfonamide & is used to treat or prevent infections.. ...Read more

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How effective are bactrim or cipro (ciprofloxacin) for a UTI?

Effective antibiotic: It depends on what organism is causing your urinary tract infection (uti). The best way to find out what antibiotic is effective is to go to your physician and have a culture and sensitivity (c&s) ordered on your urine. Once the c&s is returned, you can tell if you're on the proper antibiotic, or need another one to successfully treat it. ...Read more

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If you are alllergic to keflex and cipro, (ciprofloxacin) can you take bactrim?

Yes: Bactrim contains trimethoprim and sulfamethoxazole neither of which is chemically related to Keflex or cipro (ciprofloxacin). Note you appear to be atopic and could also have an allergic reation to Bactrim independent of your other allergies. ...Read more

Bactrim (Definition)

Trimethoprim and sulfamethoxazole, cotrimoxazole is a combination antibiotic that is used to treat a ...Read more