Overview
DETRUSITOL SR 2mg is a prescription medication designed for the treatment of overactive bladder with symptoms of urinary frequency, urgency, and incontinence. The active ingredient, Tolterodine, is an antimuscarinic agent that helps to relax the bladder muscles, thereby reducing bladder spasms.
Indications
- Overactive Bladder: DETRUSITOL SR is indicated for patients experiencing frequent urination, urgency to urinate, and urinary incontinence.
Mechanism of Action
Tolterodine works by blocking muscarinic receptors in the bladder. This inhibition reduces involuntary bladder contractions and increases bladder capacity, leading to a decrease in the urgency and frequency of urination.
Dosage and Administration
- Recommended Dose: The typical dosage for adults is one 2mg extended-release capsule taken once daily.
- Administration: Capsules should be taken whole with water, and can be taken with or without food. Do not crush or chew the capsules.
Contraindications
- Patients with urinary retention
- Gastric retention
- Uncontrolled narrow-angle glaucoma
- Known hypersensitivity to Tolterodine or any other ingredients in the formulation
Warnings and Precautions
- Use with caution in patients with significant bladder outflow obstruction, gastrointestinal obstructive disorders, or myasthenia gravis.
- Caution is advised in patients with impaired liver or kidney function.
- May cause drowsiness or blurred vision; patients should not drive or operate machinery until they know how the medication affects them.
- Regular monitoring may be necessary for patients on prolonged therapy.
Adverse Reactions
Common side effects include:
- Dry mouth
- Headache
- Constipation
- Dry eyes
- Dizziness
- Fatigue
Less common but serious side effects:
- Severe allergic reactions (rash, itching, swelling, severe dizziness, trouble breathing)
- Chest pain
- Confusion
- Hallucinations
- Severe abdominal pain
Drug Interactions
- Concomitant use with other antimuscarinic agents may increase the risk of anticholinergic side effects.
- CYP3A4 inhibitors (such as ketoconazole) may increase the plasma concentration of Tolterodine.
- Use caution when co-administering with medications that prolong the QT interval.
Storage
- Store at room temperature between 20°C to 25°C (68°F to 77°F).
- Keep out of reach of children.
- Protect from moisture and light.
Additional Information
- Prescription Status: DETRUSITOL SR is available by prescription only.
- Manufacturing Information: Manufactured by Pfizer, a leading global pharmaceutical company known for its commitment to quality and safety.
For any further information, consult your healthcare provider or the detailed product leaflet provided with the medication.









Isabelle Rowland –
Detrusitol SR 2mg has exceeded my expectations. The constant urgency that used to interrupt my day has greatly decreased, and I’m finally able to enjoy uninterrupted sleep most nights. My follow-up appointments have confirmed that the medication is working well for me, and the overall quality has been excellent. The convenience of one capsule per day and the consistent symptom control make this a five-star product in my experience.
Gavin Mercer –
This medication has given me back a sense of normalcy. Before starting Detrusitol SR 2mg, frequent bathroom visits were interfering with both my work and social life. After following my physician’s instructions, I noticed gradual but steady improvement. The once-daily extended-release capsule is convenient, and I’ve experienced only mild, manageable side effects. I’m extremely happy with the results and grateful for such an effective treatment.
Helena Norcross –
I’ve been taking Detrusitol SR 2mg for several months, and it has significantly improved my daily comfort and confidence. I can now attend meetings, travel, and enjoy long car rides without constantly worrying about finding a restroom. My symptoms have become much more manageable, and my doctor is very happy with the results. The Pfizer formulation has been consistently reliable, and I would definitely recommend it to others who have been prescribed tolterodine.
Daniel Whitmore –
After trying lifestyle changes without much success, my doctor recommended Detrusitol SR 2mg. The improvement has been remarkable. The urgency and frequency gradually decreased over the first month, allowing me to sleep through most nights without interruption. The capsules are easy to take once daily, making it simple to stay consistent with treatment. The benefits have far outweighed the mild dry mouth I experienced early on. Highly satisfied with this medication.
Marissa Holloway –
Detrusitol SR 2mg has made a noticeable difference in managing my overactive bladder symptoms. Within a few weeks of taking it as prescribed, I found myself making far fewer urgent trips to the bathroom during both the day and night. The extended-release capsule provides steady relief throughout the day, and I haven’t had to constantly plan my outings around restroom availability anymore. Aside from a little dry mouth initially, which improved by drinking more water, it’s been an excellent experience. I’m very pleased with Pfizer’s quality and would happily give this medication five stars.