Tell your doctor if you're taking these medicines before you start nitrofurantoin treatment:. Typhoid vaccine given by mouth may not work properly if you're taking nitrofurantoin.
This does not apply to typhoid vaccines given by injection. There are no known problems with taking herbal remedies and supplements with nitrofurantoin. Tell your doctor or pharmacist if you're taking any other medicines, including herbal medicines, vitamins or supplements. When you take it by mouth, most of it gets filtered out of your blood and into your pee. This concentrates the medicine right among the bacteria causing the urinary tract infection. Nitrofurantoin kills the bacteria by entering their cells and damaging their genetic material.
It's important that you keep taking nitrofurantoin until your course is finished. Do this even if you feel better. It will help stop the infection coming back. Tell your doctor if you do not start feeling better after taking nitrofurantoin for 3 days. Also tell them if, at any time, you start to feel worse. Some people get a fungal infection called thrush after taking a course of antibiotics like nitrofurantoin.
It happens because antibiotics kill the normal harmless bacteria that help to protect you against thrush. Nitrofurantoin does not stop contraceptive pills working, including the combined pill and emergency contraception.
However, if nitrofurantoin makes you vomit or have severe diarrhoea for more than 24 hours, your contraceptive pills may not protect you from pregnancy. Look on the pill packet to find out what to do. Read more about what to do if you're on the pill and you're being sick or have diarrhoea.
There's no clear evidence to suggest that taking nitrofurantoin will reduce fertility in either men or women. However, speak to a pharmacist or your doctor before taking it if you're trying to get pregnant and you or your partner are taking this medicine. Nitrofurantoin can make you feel dizzy or sleepy. If this happens, do not drive or cycle until you feel better.
It's unlikely that drinking cranberry juice or taking cranberry supplements helps treat or prevent urinary tract infections. It's possible that a straightforward urinary tract infection may clear up on its own without any treatment. However, it's usually best to treat a urinary tract infection with an antibiotic, or it could spread to the kidneys and lead to more serious problems.
Once treated, there are many steps you can take to stop urinary tract infections coming back:. Page last reviewed: 26 November Next review due: 26 November Nitrofurantoin On this page About nitrofurantoin Key facts Who can and cannot take nitrofurantoin How and when to take it Side effects How to cope with side effects Pregnancy and breastfeeding Cautions with other medicines Common questions. About nitrofurantoin Nitrofurantoin is an antibiotic. Help us improve our website Can you answer a quick question about your visit today?
The most common side effect of nitrofurantoin is an upset stomach. Taking this medicine with or straight after food will help prevent a stomach upset. You'll feel better within a few days for most infections. You can drink alcohol while taking nitrofurantoin.
Nitrofurantoin may turn pee dark yellow or brown. This is quite normal. Pee will return to normal after you finish taking the medicine. Nitrofurantoin is also called by the brand names Aratoin, Macrobid, Macrodantin and Furadantin. To make sure it's safe for you, tell your doctor if you have: ever had an allergic reaction to nitrofurantoin or any other medicines in the past either of the rare inherited conditions: porphyria a blood disorder or glucosephosphate dehydrogenase G6PD deficiency severe kidney disease diabetes any illness causing severe weakness anaemia or vitamin B deficiency.
Dosage The usual dose of nitrofurantoin to: treat a urinary tract infection is either mg taken twice a day or 50mg taken 4 times a day. Severe infections may need a higher dose of mg taken 4 times a day prevent a urinary tract infection is 50mg to mg once a day at night Try to space your doses evenly throughout the day. Important Carry on taking this medicine until the course is completed, even if you feel better. How to take it Swallow nitrofurantoin tablets and capsules whole. How long will I take it for?
This is because to date there is no evidence to prove that antibiotics other than rifampicin or rifabutin affect these contraceptives. However, if you're taking the pill and get vomiting or diarrhoea as a result of taking nitrofurantoin, you should follow the instructions for vomiting and diarrhoea described in the leaflet provided with your pills. Last updated: Parenting Mental health Healthy eating Conditions Follow. Type keyword s to search. What is nitrofurantoin used for and what should I know before taking it?
How do I take nitrofurantoin? Who shouldn't take nitrofurantoin? What are the possible side effects of nitrofurantoin? This content is created and maintained by a third party, and imported onto this page to help users provide their email addresses. Always discuss possible side effects with a healthcare professional who knows your medical history.
Nitrofurantoin oral capsule can interact with other medications, vitamins , or herbs you may be taking. An interaction is when a substance changes the way a drug works. This can be harmful or prevent the drug from working well. To help avoid interactions, your doctor should manage all of your medications carefully.
Do not take these drugs with nitrofurantoin. Examples of these drugs include:. However, because drugs interact differently in each person, we cannot guarantee that this information includes all possible interactions. Always speak with your healthcare professional about possible interactions with all prescription drugs, vitamins, herbs and supplements, and over-the-counter drugs that you are taking.
If you have an allergic reaction, call your doctor or local poison control center right away. If your symptoms are severe, call or go to the nearest emergency room. Taking it again could be fatal cause death.
For people with kidney disease: If you have a history of kidney disease, you may not be able to clear nitrofurantoin from your body well. This could lead to a buildup of nitrofurantoin. This raises your risk of side effects. For people with liver disease: You should not use nitrofurantoin. It can make your liver damage worse. For pregnant women: During weeks 0—37 of pregnancy, nitrofurantoin is a category B pregnancy drug.
That means two things:. Animal studies do not always predict the way humans would respond. Nitrofurantoin can cause red blood cell problems in a newborn. For this reason, women who are pregnant should not take this drug:. For women who are breastfeeding: Nitrofurantoin may pass into breast milk and cause side effects in a child who is breastfed. Talk with your doctor about breastfeeding your child. You may need to decide whether to stop breastfeeding or stop taking this medication.
For seniors: The kidneys of older adults may not work as well as they used to. This can cause your body to process drugs more slowly. As a result, more of a drug stays in your body for a longer time.
For children: Do not use any form of nitrofurantoin in infants younger than 1 month. Macrodantin and its generic form are safe for use in children older than 1 month.
Macrobid and its generic form have not been studied in children younger than 12 years of age. They should not be used in this age group. This dosage information is for nitrofurantoin oral capsule. All possible dosages and drug forms may not be included here. Your dosage, drug form, and how often you take the drug will depend on:.
The kidneys of older adults may not work as well as they used to. Your doctor may start you on a lowered dosage or a different treatment schedule. This can help keep levels of this drug from building up too much in your body.
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