Informational only — Not medical advice. Always consult a licensed healthcare provider.

MedBD
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Community data Updated 2 months ago
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Indications

Darifen ER is used to treat overactive bladder, helping relieve symptoms such as urgent, frequent, and sometimes uncontrollable urges to urinate.

⚠️ Always consult a registered physician before taking any medicine.

Pharmacology

Darifenacin is a potent, competitive muscarinic receptor antagonist that binds preferentially to the M3 subtype. M3 receptors govern contraction of the bladder's detrusor muscle, along with GI smooth muscle activity, saliva production, and iris sphincter function. By acting on these receptors, darifenacin can raise the volume threshold that triggers involuntary detrusor contractions, thereby increasing the bladder's effective capacity.

Pregnancy & Breastfeeding

Pregnancy Category C. Darifenacin should be used during pregnancy only if the potential benefit to the mother justifies the potential risk to the fetus.

Lactation: It is not known whether Darifenacin passes into human breast milk, so caution should be exercised before giving Darifenacin to a breastfeeding woman.

⚠️ Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.

Dosage Reference

⚠️ Reference ranges from official sources only. Consult your doctor for personalized dosing.

Adults: Darifenacin 7.5 mg once daily; the dose may be increased to 15 mg once daily if the response is not adequate after 2 weeks of therapy. Darifenacin should be taken with liquid. It can be taken with or without food, and should be swallowed whole rather than chewed, divided or crushed. For patients with moderate hepatic impairment, or when co-administered with potent CYP3A4 inhibitors such as ketoconazole, itraconazole, ritonavir, nelfinavir, clarithromycin and nefazodone, the daily dose of Darifenacin should not exceed 7.5 mg.

Side Effects & Interactions

Side Effects

No side-effect data recorded yet.