An agent is described for suppressing an allergic reaction, comprising a peptide which is derived from the same antigenic substance as the antigenic substance eliciting the allergic reaction, contains an epitope different from an epitope participating in elicitation of the allergic reaction and yet does not elicit the allergic reaction. A scanning pattern selector determines which scanning pattern produced the most efficient coding result, for example, for runlength coding, and outputs a coded signal, coded most efficiently, and a selection signal which identifies the scanning pattern found to be most efficient. The station module includes at least one switching device for selectively providing a first power signal that energizes the corresponding solenoid actuated valve. The communications module may also include at least one logic device for cooperating with the cryptographic processor to determine a status of the communications module. The compound is a potent and selective cyclooxygenase -2 inhibitor.