You can create a Custom Food for these tablets using their nutritional information.
When creating the food you can choose the Supplement category, select the Supplement tag (green) and change the serving description.
I notice they give the nutrition for an 8 capsule serving. In Cronometer you can create a serving called "8 capsules" with weight say 8g and enter the nutritional information for that serving. If you add another serving size called "capsule" with weight 1g then Cronometer will scale the information accordingly.