Upper resp infections Adult
1,200,000 u. Childn ≥27.3 kg body wt
900,000 u, ≤27.3 kg body wt & infant
300,000-600,000 u. Doses to be given as single IM doses w/ a frequency of 2 inj in 10 days. Syphilis
2,400,000 u as a single IM dose, to be given once a wk for 3 wk. Congenital syphilis Childn 2-12 yr
the adult dose, ≤2 yr & infant
50,000 u/kg body wt as a single IM dose. To be taken once a wk for 2 wk. Prophylaxis of rheumatic fever & Strep pharyngitis
1,200,000 u as a single IM dose every 3 wk.