Which statement about benztropine side effects is correct?

• A. It may take up to several weeks for tremors to improve.
• B. Anticholinergics block the effect of acetylcholine.
• C. Anticholinergics can cause dry mouth, urinary retention, and constipation.
• D. Increasing fiber and fluid consumption will help with side effects.

Answer: (C)

Anticholinergic effects from benztropine drive this correct choice. Benztropine blocks muscarinic receptors, reducing acetylcholine activity. That leads to drying of secretions and slowed smooth muscle activity in the GI and urinary tracts. So dry mouth, urinary retention, and constipation are classic, expected side effects of this medication class.

The other options aren’t about side effects: one mentions how long tremors take to improve (therapeutic effect), another states the general mechanism (blocked acetylcholine action) which is true but not a side effect, and the last suggests a management tip (more fiber and fluids) rather than a direct side effect.