TABLE 19-1.

Drugs Used to Treat High-Risk Pregnancy

DRUG	DOSE/FREQUENCY/ROUTE	REASON
Trimethoprim-sulfonamide	25 mg/kg b.i.d. p.o.	Antimicrobial
Flunixin meglumine	0.25 mg/kg t.i.d. p.o. or IV*	Antiinflammatory
Altrenogest	0.44 mg/kg s.i.d. p.o.	Tocolytic
Isoxuprine	0.4–0.6 mg/kg b.i.d. IM or p.o.	Tocolytic
Clenbuterol	0.8 μg/kg as needed p.o.†	Tocolytic
Vitamin E	6000–10,000 IU s.i.d. p.o.	Antioxidant

^*IV, Intravenously; IM, intramuscularly.

^†Intravenous form currently not available in the United States.