Novartis Animal Health has temporarily and voluntarily ceased production of Sentinel® while their facility undergoes "process and compliance improvement activities." Exact dates of availability at this time are undetermined. For more information, please see the following information from Novartis.
Thank you for your patience. Please consider asking your veterinarian for your alternative prescription, or browse for other Heartworm Preventive options here to discuss with your veterinarian at your next visit.