PREGNANCY: Category C; usual dietary exposure to caffeine is unlikely to cause congenital malformations, however studies show conflicting results about adverse events. Concentrations in the mother are similar to those found in the fetus. Daily intake should be no more than 200 mg.
NURSING MOTHERS: Caffeine enters the breast milk, and, therefore should be used cautiously by nursing mothers.
SIDE EFFECTS: Side effects associated with caffeine supplements include irregular heartbeat, chest pain, flushing, palpitations, rapid heartbeat, agitation, dizziness, hallucinations, headache, insomnia, irritability, psychosis, restlessness, rash, increased pressure in the eye, and frequent urination.
REFERENCE: FDA.gov. Medicines in my Home: Caffeine and Your Body.
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