Citrulline dietary supplement. It is a non-essential amino acid, which is nevertheless important in the urea cycle, as it contributes together with arginine and ornithine to the release of ammonia in the body, resulting in protein metabolism. It also plays an important role in the healing process and in maintaining a healthy immune system. Instructions for use 1 tablet, 1-2 times a day, between meals. Consult your doctor if you are pregnant or breastfeeding, taking medications (especially blood pressure medications and nitrates or other vasodilators), or have a medical condition (especially abnormal blood pressure). Dosage This product is improved because it contains more L-citrulline (1,200 mg per tablet) than our regular product (750 mg per capsule)