Which medication class is associated with blurred vision and dry mouth?

• A. Antihistamines
• B. Antihypertensives
• C. Miotic eye drops
• D. Antiseizure drugs

Answer: (A)

Blurred vision with dry mouth reflects anticholinergic effects. Many first‑generation antihistamines block muscarinic receptors, which reduces salivation and hampers the eye’s ability to adjust focus (accommodation). That combination—dry mouth and temporarily blurred near vision—is classic for medications with anticholinergic activity. Other drug classes listed don’t produce this same paired pattern as consistently; for example, antihypertensives may cause dizziness but not the distinctive dry mouth with blurred vision, miotic eye drops cause pupil constriction and watery eyes rather than dryness, and antiseizure drugs can cause vision changes without the characteristic dry mouth. Thus, this medication class best explains the symptoms.