SOFPIRONIUM Drug Interactions: What You Need to Know

INTERACTIONS Anticholinergics: Coadministration of SOFDRA with anticholinergic medications may result in additive interaction leading to an increase in anticholinergic adverse effects. Avoid coadministration of SOFDRA with other anticholinergic-containing drugs ( 7.1 ).

Strong

Inhibitors of CYP2D6: Avoid co-administration of SOFDRA with drugs that are strong inhibitors of CYP2D6 ( 7.2 ).

7.1 Anticholinergics Coadministration of SOFDRA with anticholinergic medications may result in additive interaction leading to an increase in anticholinergic adverse effects [See Warnings and Precautions (5.2) and Adverse Reactions (6.1) ] . Avoid coadministration of SOFDRA with other anticholinergic-containing drugs.

7.2 Strong Inhibitors of CYP2D6 Avoid co-administration of SOFDRA with drugs that are strong inhibitors of CYP2D6.

SOFDRA is contraindicated in patients with medical conditions that can be exacerbated by the anticholinergic effect of sofpironium bromide (e.g., glaucoma, paralytic ileus, unstable cardiovascular status in acute hemorrhage, severe ulcerative colitis, toxic megacolon complicating ulcerative colitis, myasthenia gravis, Sjögren's syndrome). Medical conditions that can be exacerbated by the anticholinergic effect of SOFDRA (e.g., glaucoma, paralytic ileus, unstable cardiovascular status in acute hemorrhage, severe ulcerative colitis, toxic megacolon complicating ulcerative colitis, myasthenia gravis, Sjögren's syndrome) ( 4 ).

AND PRECAUTIONS Urinary Retention: Use with caution in patients with a history or presence of documented urinary retention. Discontinue use immediately and consult a healthcare provider should any signs or symptoms of urinary retention develop ( 5.1 ). Control of Body Temperature: Watch for generalized lack of sweating when in hot or very warm environmental temperatures and avoid using SOFDRA if not sweating under these conditions ( 5.2 ).

Operating

Machinery or an Automobile: Transient blurred vision may occur with use of SOFDRA. If blurred vision occurs, discontinue use and avoid operating a motor vehicle or other machinery until symptoms resolve ( 5.3 ).

5.1 Urinary Retention Use SOFDRA with caution in patients with a history or presence of documented urinary retention. Prescribers and patients should be alert for signs and symptoms of urinary retention (e.g., difficulty passing urine, distended bladder), especially in patients with prostatic hypertrophy or bladder-neck obstruction. Discontinue use immediately and consult a healthcare provider should any of these signs or symptoms develop.

5.2 Control of Body Temperature In the presence of high ambient temperature, heat illness (hyperpyrexia and heat stroke due to decreased sweating) can occur with the use of anticholinergic drugs, including SOFDRA. Watch for generalized lack of sweating when in hot or very warm environmental temperatures and avoid using SOFDRA if not sweating under these conditions.

5.3 Operating Machinery or an Automobile Transient blurred vision may occur with use of SOFDRA. If blurred vision occurs, discontinue use and avoid engaging in activities that require clear vision, such as operating a motor vehicle or other machinery or performing hazardous work, until the symptoms have resolved.