Intramuscular injections are for medicines that people must inject into a muscle ... The muscles have a plentiful supply of blood, ... imagine dividing the thigh vertically into three equal parts.

Figure 2 shows the levels of penicillin in the blood after single injections of 100,000, 200,000 and 300,000 units of calcium penicillin in 3.2, 4.0 and 4.8 per cent beeswax by weight, ...

IN PREVIOUS reports, we1 2 3 have shown that after a single injection of a suspension of calcium penicillin in beeswax and peanut oil, effective levels of penicillin can be maintained in the blood ...