Marie Curie is remembered for her discovery of radium and polonium, and her huge contribution to the fight against cancer. Born Maria Sklodowska on 7 November 1867 in Warsaw, Poland, she was the youngest of five children of poor school teachers.
Medical Definition of b.i.d. (on prescription) b.i.d. (on prescription): Seen on a prescription, b.i.d. means twice (two times) a day. It is an abbreviation for bis in die which in Latin means twice a day. The abbreviation b.i.d. is sometimes written without a period either in lower-case letters as bid or in capital letters as BID.
A prescription for a controlled drug is valid for 28 days from the date on the prescription. If you have a prescription for a controlled drug that states the drug should be dispensed in several instalments, the first instalment must be dispensed within 28 days of the date on the prescription. repeat prescription must be dispensed for the first time within six months of the date on the prescription. After this, the repeat prescription can continue to be valid beyond six months, according to the directions on the prescription.