Patients with a history of penicillin allergy usually receive less optimal and more costly alternatives even if cephalosporins are a more viable alternative. One hundred eighty-six patients ...

The synthesis features cascade reactions and an 'across ring' stitching of a 'macropalau'amine', and sets the ... the case with natural products such as penicillin, vitamin B12 and taxol.

contain detectable amounts of penicillin. These amounts (1 to 200 units per milliliter) are sufficient to produce an allergic reaction in patients exquisitely sensitized. 1 In addition to this ...