bd      buccal drug administration                      
ei      epidural drug administration
ih      inhalational drug administration
ia      intraarterial drug administration
ar      intraarticular drug administration

br      intrabronchial drug administration
bu      intrabursal drug administration
cl      intracameral drug administration
ic      intracardiac drug administration
ca      intracavernous drug administration

ce      intracerebral drug administration
cv      intracerebroventricular drug administration
ci      intracisternal drug administration
dl      intradermal drug administration
du      intraduodenal drug administration

ig      intragastric drug administration
il      intralesional drug administration
ly      intralymphatic drug administration
im      intramuscular drug administration
na      intranasal drug administation

io      intraocular drug administration
os      intraosseous drug administration
ip      intraperitoneal drug administration
pl      intrapleural drug administration
sp      intraspinal drug administration

tl      intrathecal drug administration
tr      intratracheal drug administration
tu      intratumoral drug administration
ty      intratympanic drug administration
ur      intraurethral drug administration

ut      intrauterine drug administration
va      intravaginal drug administration
iv      intravenous drug administration
ve      intravesical drug administration
vi      intravitreal drug administration

po      oral drug administration
pa      parenteral drug administration
oc      periocular drug administration
rc      rectal drug administration
rp      regional perfusion
      
rb      retrobulbar drug administration
cj      subconjunctival drug administration
sc      subcutaneous drug administration
sb      sublabial drug administration
li      sublingual drug administration

tp      topical drug administration
td      transdermal drug administration