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Doctor insights on: Long Term Effects Of Macrobid

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What would you consider a long term usage of macrobid? I have taken it daily for 1 1/2 years.

What would you consider a long term usage of macrobid?  I have taken it daily for 1 1/2 years.

Furadantin (nitrofurantoin): This should not be taken chronically in this manner. It has numerous potentially very severe side-effects including interstitial pneumonia and others. It is a close cousin of the drug Dilantin which has full texts written about the toxicities. Would stop this now and discuss with the doctor who ordered it. ...Read more

Dr. Robert Kent
312 doctors shared insights

Nitrofurantoin (Definition)

Nitrofurantoin is an antibiotic which is marketed under the following brand names; niftran, furadantin, (nitrofurantoin) furabid, macrobid, macrodantin, nitrofur mac, nitro macro, nifty-sr, martifur-mr, uro-tablinen or nifuretten (in germany), martifur-100 (in india), urantoin, nifuran (in macedonia) and uvamin (in middle east). It is usually used in treating urinary tract infection. It is often ...Read more


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I take Macrobid every time I have sex because I have reoccurring uti's, i heard it causes liver/lung problems& fibrosis, is long term use safe?

I take Macrobid every time I have sex because I have reoccurring uti's, i heard it causes liver/lung problems& fibrosis, is long term use safe?

Macrobid: Macrobid has been used for many years for treatment of uti's both acute and chronic and also as prophylaxis in preventing uti's in sexually active women. Patients on any long term drug need to be monitored by their physician. There possible problems with the long term use of this drugs, liver function needs to be monitored. There are rare lung complications including lung fibrosis. ...Read more

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How long would I have effects from a severe allergic reaction to macrobid?

How long would I have effects from a severe allergic reaction to macrobid?

Depends: It depends on what kind of reactions you experienced from the macrobid. If hives or rash, i would expect it to go away in days. We need more details on the timing and the type of reactions. ...Read more

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Hi, I am having bad nausea side effects from taking Nitrofuratoin MacroBID 100mg. How long after last dose will this stop? Thanks

6 hours likely: because usually take it every 6 hours unless long acting form , 12 hours. might try amox [penicillin] works for e.coli bacteria too in uti's or even cephalosporins like cephalexin or cefdinir ...Read more

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How long does it take for Macrobid to get out of your body?

Half life not long: Up to 1 hour. It's not the medication making you feel ill, but the prescribing MD should be notified as soon as you can. ...Read more

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How long does Macrobid stay in your system after taking the last dosage?

24hours: Half life is 12 hours. That means the half of the total dose taken will be gone after 12 hours and then another 12 hours 50% from the other half will be gone and so forth. ...Read more

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How long after starting Macrobid should I feel relief from a uti?

How long after starting Macrobid should I feel relief from a uti?

2-4 days: 2-4 days is usual. If it lasts longer, especially if there is a fever, you should go back and see your doctor as it could mean an ascending infection into the kidneys. ...Read more