Conzace DV Special Precautions

Chronic daily vitamin A intake in excess of 10,000 IU or weekly intakes in excess of 25,000 IU may result in hypervitaminosis A. Excessive vitamin A intake during pregnancy may lead to birth defects such as cleft palate, heart abnormalities, and brain malformations such as hydrocephalus and microcephaly (baby with very small head).
Prolonged intake of vitamin C (>2 grams daily) may lead to nausea, abdominal cramps, diarrhea, and nosebleeds.
Signs of acute zinc toxicity (doses >200 mg daily) include GI pain or cramps, nausea, vomiting, diarrhea, loss of appetite, headache, lethargy, muscle pains, and fever.
When to consult a doctor: If any side effect occurs.
Care that should be taken when taking this medicine: Chronic consumption of vitamin A may cause liver damage.
Vitamin C should use with caution in patients with renal failure because of the risk of kidney stones and patients with deficiency of glucose-6-phosphate dehydrogenase (G6PD) because of the risk of hemolytic anemia, hemochromatosis, sickle cell anemia, thalassemia or sideroblastic anemia.
High doses of vitamin E (doses >100 IU) should be used with caution in patients treated with warfarin, also in patients with a tendency to bleed (e.g.: peptic ulcer), patients with a history of hemorrhagic stroke and patients with a hereditary history of bleeding disorders (e.g.: hemophilia).
Zinc should be used with caution in patients with kidney disease.
If the patient is taking other supplements, read the label, since those supplements may contain the same ingredients as this product.