Mictonetten (Propiverine Hydrochloride)

Propiverine is an antimuscarinic used to treat conditions related to overactive bladder and urinary urgency.

• Overactive bladder: improves bladder storage capacity and reduces urgency episodes.
• Urinary urgency: decreases frequency of sudden urges to void.
• Urinary frequency: lowers daytime voiding episodes.
• Urge urinary incontinence: reduces episodes of involuntary leakage.
• Nocturia: reduces nighttime urination episodes.

• Propiverine acts as a competitive antagonist at muscarinic M3 receptors in the detrusor muscle of the bladder. By blocking acetylcholine binding, it inhibits involuntary smooth‑muscle contractions, thereby increasing functional bladder capacity and reducing urgency and frequency of voiding. This pharmacological profile results in improved storage symptoms without significantly affecting voiding pressure.

Propiverine may cause a range of adverse reactions, varying from mild to serious.

Common Side Effects

• Dry mouth: reduced salivary secretion causing persistent thirst and difficulty swallowing.
• Constipation: slowed intestinal transit leading to hard stools, abdominal discomfort, and infrequent bowel movements.
• Blurred vision: temporary visual disturbances that may affect reading or driving.
• Dizziness: light‑headed sensation that can occur upon standing or sudden movement.

Serious or Rare Side Effects

• Urinary retention: difficulty emptying the bladder, potentially requiring catheterisation.
• Severe allergic reaction: rash, swelling, itching, or anaphylaxis that demands immediate medical attention.
• Tachycardia: rapid heart rate that may be accompanied by palpitations or chest discomfort.
• Elevated liver enzymes: abnormal hepatic function tests indicating possible liver involvement.

When prescribing Propiverine, several precautions should be considered to minimise risk.

• Renal impairment: assess kidney function and adjust dose if necessary.
• Hepatic impairment: use with caution and monitor liver enzymes.
• Narrow‑angle glaucoma: contraindicated due to anticholinergic effects.
• Elderly patients: monitor for increased anticholinergic burden and cognitive effects.
• Pregnancy and breastfeeding: safety not established; avoid unless benefits outweigh risks.
• Store at ambient temperature: keep in original container, protect from moisture and light.

Propiverine may interact with other medicines; awareness of major and moderate interactions helps ensure safe use.

Major Interactions (Avoid)

• Strong CYP3A4 inhibitors: may increase propiverine plasma concentrations, raising risk of adverse effects.
• Anticholinergic drugs: additive anticholinergic activity can exacerbate dry mouth, constipation, and cognitive effects.

Moderate Interactions (Monitor Closely)

• Diuretics: may alter urinary symptoms and affect efficacy.
• Beta‑agonists: could reduce therapeutic benefit on bladder function.
• Other bladder agents: overlapping mechanisms require monitoring for combined effects.