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Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.