NONMEM® versions up through VI are the property of the Regents of the University of California, but ICON Development Solutions has exclusive rights to license their use. NONMEM® 7 up to the current version 7.2.0 is the property of ICON Development Solutions.
The software consists of three parts.
NONMEM® 7 is programmed in Fortran 90/95 code and can be used with 32 or 64 bit Windows, Linux, Macintosh OSX, or Solaris operating systems incorporating a Fortran 90/95-compliant compiler. Since some NONMEM® runs can take considerable time, perhaps many hours or even days, depending on the speed of the computer and the size of the problem, it is advisable to use a fast machine with at least 1.0 Gb of available memory. For multiprocessor and multi-core environments 3-4 Gb of memory may be needed to accommodate several simultaneous NONMEM® runs.
The NONMEM program is available on CD ROM, which together with the documentation and all updates and additions to the program and documentation, will be delivered for a license royalty fee to be paid annually. This fee is subject to change from year to year, and at each anniversary the licensee at its option may choose not to renew the license.