Symptoms of an acute overdose of vitamin A: double vision, dizziness, diarrhea, irritability, osteoporosis, gingival hemorrhage, dryness and ulceration of the oral mucosa, exfoliation of the lips, skin, confusion, increased intracranial pressure.
Symptoms of chronic intoxication: loss of appetite, bone pain, cracks and dryness of the skin, dryness of the oral mucosa, gastralgia, vomiting, hyperthermia, asthenia, fatigue, discomfort, headache, photosensitivity, pollakiuria.nocturia, polyuria, irritability, hair loss, yellow-orange spots on the soles, palms, nasolabial triangle, hepatotoxic phenomena, intraocular hypertension, oligomenorrhoea, portal hypertension, hemolytic anemia, changes in bone radiographs, seizures.
Symptoms of acute intoxication with vitamin D (early): dryness of the oral mucosa, thirst, constipation or diarrhea, polyuria, anorexia, metallic taste in the mouth, nausea, vomiting, fatigue, weakness, adynamia, hypercalcemia, hypercalciuria, dehydration; (late): pain in the bones, clouding of urine, increased blood pressure, pruritus, photosensitivity of the eyes, congestion hyperemia, arrhythmia, drowsiness, myalgia, nausea, vomiting, pancreatitis, gastralgia, weight loss, rarely - psychosis and mood changes.
Symptoms of chronic intoxication: calcification of soft tissues, kidneys, lungs, blood vessels, hypertension, renal and chronic heart failure; in children - a growth disorder.
Treatment: abolition of the drug, a diet low in calcium, the consumption of large quantities of liquid. Symptomatic treatment.The specific antidote is unknown.