A dietary supplement is containing Vitamin C, Calcium, Vitamin D3, and Vitamin B6, which helps support the immune system and reduce fatigue and tiredness.

Benefits:
- Supports the immune system.
- Improves bone and muscle health.
- Reduces fatigue and tiredness.

Precautions:
- The product should be used under medical supervision.
- Avoid using the product if you are hypersensitive to any of its ingredients.
- Store the product in a cool, dry place away from direct sunlight.

Side Effects:
- Gastrointestinal discomfort, including nausea, diarrhea, or constipation.
- Headaches or dizziness in some individuals.
- Allergic reactions, such as skin rashes or itching, particularly for those sensitive to specific ingredients.
- Hypercalcemia (high calcium levels) if taken excessively, leading to symptoms like fatigue, weakness, and kidney issues.
- Potential interactions with other medications, particularly blood thinners or medications affecting calcium levels.

Main Ingredients and Their Benefits:
- Vitamin C: An antioxidant that helps boost the immune system.
- Calcium Carbonate: Maintains bone and muscle health.
- Vitamin D3: Aids in calcium absorption and bone health.
- Vitamin B6: Contributes to the production of red blood cells and maintains nerve health.