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.
Absent stricter state law, the federal limits apply to pseudoephedrine sales. For ephedrine (HCl and sulfate salts) and all strengths and salts of pseudoephedrine, daily retail sales are limited to 3.5 g. The number of tablets will vary according to the strength of the tablets sold.