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Nitrofurantoin Macrocrystals

Purpose of Macrobid

Nitrofurantoin is an antibiotic used to treat urinary tract infections but is less effective for kidney infections. It is taken orally. Common side effects include nausea, loss of appetite, diarrhea, and headache. In rare cases, numbness, lung problems, or liver problems may occur


Macrobid Uses

This drug is an antibiotic used to treat inflammation of the bladder (acute cystitis). Macrobid is an antibiotic that only treats bacterial infections. It is not effective against viral infections (such as colds and flu). Using antibiotics when you don’t need them can prevent them from working against future infections. Do not use this medicine in infants younger than 1 month (see also Precautions section). This medicine should not be used to treat non-bladder infections (including kidney infections such as pyelonephritis and perinephric abscess).



How do you use Macrobid

Take Macrobid as directed by your doctor, usually twice a day (every 12 hours), with food. For best results, swallow the medicine whole.

Do not use magnesium trisilicate-containing antacids while taking this medicine. These antacids bind to nitrofurantoin and prevent it from being fully absorbed by the body.


For best results, take this antibiotic regularly. Take Macrobid medicine at the same time every day to help you remember.


Macrobid Dosage

Take Macrobid capsules with food. Adult and pediatric patients 12 years and older: 1 100 mg capsule every 12 hours for 7 days.


Macrobid Side Effects

Nausea, headache, urine to turn dark yellow or brown in color. This is usually a harmless, temporary effect and will disappear when the medication is stopped. However, dark brown urine can also be a sign of rare side effects (liver problems or anemia)

If any of these effects persist or worsen, notify your doctor or pharmacist promptly.


Macrobid Storage

Store at controlled room temperature (59° to 86°F or 15° to 30°C). Keep out of reach of children.


About USH

Although USA Script Helpers is not covered by Medicare, USA Script Helpers offers medical expense reports that you may submit to your local insurance companies. Should you be reimbursed that is separate from us. USA Script Helpers makes it easy to buy Canadian medicine online. USA Script Helpers also offers the best-priced* guaranteed for all medications. For more information, call us at 1 (888) 646-7749.

ATTENTION REQUIRED: All customer support calls and chats will be with English Reps. Should you require additional assistance in Spanish please send us an email to a member of our chat team and email support will send you emails in Spanish.

SHIPPING ADVISORY: Please be advised that due to Covid-19, Canada Post and USPS have both removed their shipping guarantee. Therefore, orders may take 7-10 business days to receive. Please be sure to place your order sooner rather than later. Should you not receive your medication within the quoted time please do not hesitate to give us a call at our toll free number 1-888-646-7749 to speak to a member of our customer support team. Thank you.

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Due to Covid-19 both USPS AND CANADA POST have removed their shipping guarantees. Therefore, orders may take 7-10 business days to receive from the date shipped. We ask all new and returning customers to place their orders prior to your own personal supplies running low. Please order ahead of time. We thank you for your cooperation

3-Month Supplies

As the amount of medicine constituting a day supply depends on your doctors directions for use, different patients are permitted to order different quantities. Placing an order for more than a 3-month supply may delay your order as we will need to contact you. Contact us for assistance if your 3-month rule compliant desired quantity is not shown.


If you have any questions or would like to speak to a Pharmacist from our contracted Pharmacy department, please do not hesitate to give us a call at our toll free number: 1 (888) 646-7749.