Urinary antibiotic
Nitrofurantoin for cystitis: prescription information
Guide in Portuguese on nitrofurantoin, safety and online medical consultation for urinary symptoms.
Online medical consultationElectronic prescription if applicable
Essential information
What is it used for?
Acute cystitis in selected patients
It is not indicated for pyelonephritis or urinary sepsis.
Kidney function and duration of treatment are important
Clinical assessment
What the doctor will check
Urinary symptoms and signs of complicated infection.
Kidney function, pregnancy, age, and pulmonary or liver history.
Allergies, G6PD deficiency and current medication.
Previous cultures and recent treatments.
Safety
Important warnings
• Pain in the flank, high fever, vomiting or general deterioration require urgent in-person evaluation.
• Check if you have difficulty breathing, new cough, yellowing, or tingling.
• Should not be used repeatedly without specific follow-up.
Online consultation
Start by phone or video
The online consultation can guide uncomplicated cystitis, but the doctor can order tests or refer you to in-person care.
Purchase and prescription
Nitrofurantoin without prescription?
It is an antibiotic subject to assessment and prescription. Do not buy or reuse it without medical indication.
The prescription is never automatic.
Related
More information
Simple process
Book, talk to the doctor and receive your prescription if applicable
Reserve
Choose a time.
Consultation
By phone or video.
Indications
Prescription by PEM if applicable.
Frequently asked questions
Common questions
Nitrofurantoin without prescription?
It is an antibiotic subject to assessment and prescription. Do not buy or reuse it without medical indication.
Does the consultation guarantee a prescription?
No. The doctor only prescribes when clinically appropriate.
Does Costa Medical Services sell the medication?
No. We provide medical consultation; Dispensing corresponds to an authorised pharmacy.