PERSISTENCE OF PENICILLIN IN MILK 
After One Parenteral Injection 
PENICILLIN G 
Sodium or Potassium, bs ; DOSE / COW 
aqueous .... [Za : HB 2,000u./Ib. or 2-3 mil. u. 
Diethylaminoethylester RH 5,000u. /Ib. or 5-8 mil. u. 
oa wa? 8 
hydriodide LASS : 10,000 u./Ib. or 10-18 mil.u. 
Procaine ’ CAAA RAN 
aqueous............... PAPPPPPPPLA 27, 53, 82 
aa aaa OO, 0,0, 0,0,0.0,0.0.0.0.0.6! 
MM SISSPSISISISSISSIIILIILL LSS 
Benzathine 
’ PN PO MS 
aqueous................ PAPPPPIPIDIPIDI DIDI IVIPIP POPE BEEA 27, 82, 
PENICILLIN V 
Benzathine, 
aqueous .. 
0.99.99 00.9 .0.9 0,9, .2.0.0.0.0.0 Wipe) 
3 6 9 
DAYS AFTER INJECTION 
U. S. DEPARTMENT OF AGRICULTURE AGRICULTURAL RESEARCH SERVICE 
Figure 5,--Parenteral injection: The maximal time penicillin persisted in milk when different peni- 
cillin salts, vehicles, and doses were used, 
PERSISTENCE OF ANTIBIOTICS IN MILK 
After One Parenteral Injection 
AUREOMYGIN 
References: 
15, 53, 57 
TERRAMYCGIN 
5mg./ Ib 
TETRACYCLINE 
STREPTOMYCIN 
6.25 -12.5 
15, 22, 82 
2 
DAYS AFTER INJECTION 
U. S. DEPARTMENT OF AGRICULTURE AGRICULTURAL RESEARCH SERVICE | 
Figure 6,--Parenteral injection: The maximal time various antibiotics persisted in milk, (Strep- 
tomycin also refers to dihydrostreptomycin,) 
r95 
BN- 10706X 
BN- 10703-X 
