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When taking this medication, you might experience some common side effects such as drowsiness, dizziness, constipation, stomach upset, blurred vision, or dryness in the mouth, nose, or throat. These are generally mild, but if they persist or worsen, it's advisable to consult a healthcare professional. To minimize dizziness or lightheadedness, rise slowly from sitting or lying down positions. For dry mouth relief, consider sugarless candies, ice chips, gum, drinking water, or saliva substitutes.

In some cases, an empty tablet shell may appear in your stool if you use a sustained-release product; this is harmless. Although serious side effects are uncommon, it is important to be aware of them. Contact your healthcare provider immediately if you notice mental or mood changes, such as restlessness or confusion, difficulty urinating, or a fast or irregular heartbeat.

Severe side effects, though rare, require immediate medical attention. These include seizures or symptoms of a serious allergic reaction like rash, itching, swelling (especially of the face, tongue, or throat), severe dizziness, or trouble breathing. Always stay informed about potential side effects and seek professional advice if you encounter any unusual symptoms.