Question: do tessalon perles cause drowsiness?
Answer: Do not crush, dissolve, or chew Tessalon Perles capsules. Common side effects of Tessalon Perles include constipation, headache, and stomach upset. Tessalon Perles can cause drowsiness, dizziness, and visual side effects. Do not drive or operate heavy machinery until you know how Tessalon Perles affects you.