I just had root canal done for first time 3 weeks ago. Lower molar.  Reinfected before job finished. So back on clindomycin again and in to office to have it cleaned out again.  During procedure had ringin in ear for about 5 min. Woke up next day with motion sickness. Nausea and  1 bout of vomiting.  Hot and cold.  Related to procedure or separate issue.  Antibiotic?  Etc
Dear friend. Thanks for sharing your concern. Your symptoms are not directly related to usage of clindamycin. Still if you want you can just speak to your dentist regarding an alternative antibiotic. Please check with your physician regarding your symptoms like nausea and vomiting. Once your canal preparation is completed, antibiotic has very less role then. Hope it helps. Thanks. Take care.