Final answer:
Amlodipine, Nifedipine, and Verapamil are three calcium channel blockers that can cause gingival enlargement, a condition affecting the gums.
Step-by-step explanation:
Three calcium channel blockers known to cause gingival enlargement are Amlodipine (Norvasc, Lotrel), Nifedipine (Adalat, Procardia), and Verapamil (Calan, Verelan). These medications, which are used to treat hypertension and other cardiovascular conditions, have been associated with this side effect in some patients. Gingival enlargement can cause discomfort, affect aesthetics, and may lead to dental issues if left untreated. It is important for individuals taking these medications to maintain good oral hygiene and to regularly visit their dentist for check-ups in order to manage potential gingival changes.