Page 4. Beta decay is a radioactive process in which an electron is emitted from the nucleus of a radioactive atom, along with an unusual particle called an antineutrino.The neutrino is an almost massless particle that carries away some of the energy from the decay process.age 4. Beta decay is a radioactive process in which an electron is emitted from the nucleus of a radioactive atom, along with an unusual particle called an antineutrino.
There is also a 12-hour extended-release form of pseudoephedrine; it should also start working within half an hour of taking your first dose, but will last much longer. Because it can last up to 12 hours, remember that you should not take more than two tablets in a 24-hour period.
Self-medication in children â¥12 years of age: Maximum 10 mg daily (in fixed combination with 120 mg pseudoephedrine hydrochloride).69 Fixed-combination preparation not recommended for children <12 years of age; contains 120 mg pseudoephedrine hydrochloride, which exceeds recommended single dose in such patients.63.