Words, phrases and abbreviations commonly used in prescription writing.
℞--means take thou.
M.--Misce, mix.
Fiat--make.
Ad.--add, to make.
Et.--means and.
Sig.--Signa, label, or write thus.
Numerus--number.
O.--Octarius, a pint.
Ter.--thrice.
C. or Cong.--Congius, gallon.
Dies.--diem, day.
Q. S.--Quantum sufficiat. Sufficient quantity.
Bene--well.
q. s. ad.--quantity sufficient to make certain amount.
Q. h.--quaqua-hora, every hour.
aa.--ana. Of each.
S.--Semis, means half.
S. S.--Semi or Semissis means one-half.
Cum.--with.
Stat.--statim, immediately.
B. I. D.--Bis in die. Twice daily.
T. I. D., or T. D.--three times daily, Ter in die.
Q. D.--quarter in die; four times daily.
P. Æ.--Partes æquales, equal parts.
Div.--divide.
Gtt.--Guttæ, drops.
Grs.--Grains.
ʒ--Drachma, dram.
℥--Uncia, ounce.
M.--Minims about a drop.
℈--Scruple.
M. ft.--mistura fiat; let a mixture be made.
Pil.--Pilula; pill.
Destil.--Destilla; distill.
Liq.--liquor a solution.
Pulv.--Pulvis; powder.
Fl.--fluidus, fluid.
Bol.--Bolus, large pill.
Cola--strain.
Filtra--filter.
Capsula--cap. A capsule.
Charta--chart. A paper (medicated).
Dosis--Dos. A dose.
Massa--Mass. A pill--mass.
Unguentum--Ungt. An ointment.
Syrups--Syr. A syrup.
Vinum.--Vin. A wine.
Aqua fontana--Aq. font.--Spring water.
Aqua destillata--Aq. dest.--Distilled water.