Inderal (Propranolol HCI) Cardiovascular agent Anti-adrenergics/Sympatholytic High Blood Pressure, chest pain, Migraine Headache, irregular heart beats, tremor, varices in the esophagus due to liver cirrhosis. 40-320 mg/day in 2-3 divided dosages, may be taken with meal. Category C Low heart beats, Depression, dizziness, Insomnia, upset stomach, weakness, shortness of breath. Warning: angina pectoris may result from abrupt termination of this medication. Pregnancy Risk Categories defined: A: Studies in pregnant women failed to show a risk to the fetus in the first trimester - with no evidence of risk in the later trimesters. B: Animals studies indicate no adverse effect to the fetus, but there are no adequate, clinical studies in pregnant women. C: Animal studies have shown an adverse effect on the fetus, but there are no adequate, clinical studies in humans. Despite potential risks, the drug may be useful in pregnant women. D: There is evidence of risk to the human fetus, but the potential benefits of use in pregnant women may be acceptable, despite potential risks. X: Studies in animals or humans show fetal abnormalities, or adverse reaction reports indicate evidence of fetal risk. Warning: the risks involved clearly outweigh any potential benefit from using the drug in pregnant women, regardless of trimester. NR: Not rated (i.e., no information available at this time as to the potential risks or benefits).