It is a medicine that is poisonous, so what are the side effects of Japanese cod liver oil? Take it according to the recommended dosage and there will be no adverse reactions. Long-term or overdose can cause chronic poisoning. Early symptoms include bone and joint pain, swelling, skin itching, chapped lips, weakness, fever, headache, vomiting, constipation, diarrhea, nausea and vomiting, etc.

Note: Use according to the recommended dosage and do not exceed the dosage. Long-term or overdose can cause chronic poisoning. Early symptoms include bone and joint pain, swelling, itchy skin, chapped lips, weakness, fever, headache, vomiting, constipation, diarrhea, nausea and vomiting, etc.

Contraindications: It is contraindicated in patients with chronic renal failure, hypercalcemia, hyperphosphatemia and renal rickets.

Medication for pregnant women:

1. Pregnant women with hypercalcemia may be sensitive to vitamin D, which can functionally inhibit parathyroid activity, resulting in The baby has a special face, mental retardation and hereditary coarctation of the aortic arch.

2. Exclusively breastfed infants are prone to vitamin D deficiency, especially infants of mothers with dark skin. Infants' sensitivity to vitamin D varies greatly among individuals, and some infants are very sensitive to small doses of vitamin D.

3. The demand for vitamin A increases slightly during pregnancy, but it should not exceed 6,000 units per day. When pregnant women consume large amounts of vitamin A, they may cause fetal malformations, such as urinary tract malformations, growth retardation, and early epiphyseal healing. Vitamin A can be secreted from breast milk. When the lactating mother's intake increases, she should pay attention to the amount of vitamin A the baby absorbs from breast milk. Overdose of vitamin A in pregnant animals may cause fetal malformations in the central nervous system, spine, ribs, heart, eyes and urinary tract. Those who have excessive intake of vitamin A and may be complicated by early pregnancy should take a pregnancy test and measure the vitamin A content in the blood. Contraception should be used during periods of vitamin A overdose. If a pregnant woman is poisoned by excessive intake of vitamin A, she should be consulted about the risk of fetal teratogenesis.

Medication for children: Infants and young children are sensitive to large or excessive amounts of vitamin A and should be used with caution.

Medication for the elderly: Long-term use of vitamin A by the elderly may lead to overdose of vitamin A due to delayed clearance of retinal aldehyde.

Drug interactions:

1. Oral contraceptives can increase plasma vitamin A concentration.

2. When combined with vitamin E, it can promote the absorption of vitamin A in this product, increase the storage capacity in the liver, accelerate utilization and reduce toxicity. However, taking a large amount of vitamin E can deplete the amount of vitamin A in the body. Storage.

3. Antacids (such as aluminum hydroxide) can reduce bile acid in the upper small intestine and affect the absorption of vitamin A in this product.

4. Taking a large amount of vitamin A together with anticoagulants (such as coumarin or indandione derivatives) can lead to a decrease in prothrombin.

5. Cholestyramine, mineral oil, neomycin, and sucralfate can interfere with the absorption of vitamin A in this product.

6. It should not be used in combination with drugs containing large amounts of magnesium and calcium to avoid causing hypermagnesium and hypercalcemia.