1. THE CRITICAL PERIODS AND TERATOGENICS

12. Drug Effects Aspirin Increased risk of bleeding for mother and baby; harm to circulatory system Oral contraceptives Increased risk of birth defects Marijuana Irritability, nervousness, tremors; easily disturbed, startles Alcohol Foetal alcohol syndrome (FAS) – mental retardation, delayed growth, facial malformation; learning difficulties, smaller head Opiates Likely to bear premature babies addicted to the drugs in the womb Nicotine Miscarriage, low birth weight, stillbirth, short stature, mental retardation, learning disabilities Caffeine Miscarriage, low birth weight Cocaine Decreased height, low birth weight, respiratory problems, seizures, learning difficulties; addiction