a.l., a.s. means auris laeva, auris sinistra - left ear in Prescription
Similar to a.l., a.s.
IJ, inj - injectio - injection IM - intramuscular with respect to injections IN - intranasal IP - intraperitoneal IVPB - intravenous piggyback L.A.S. - label as such LCD - coal tar solution