  We have investigated the reality of exact bound states of complex and/or
PT-symmetric non-Hermitian exponential-type generalized Hulthen potential. The
Klein-Gordon equation has been solved by using the Nikiforov-Uvarov method
which is based on solving the second-order linear differential equations by
reduction to a generalized equation of hypergeometric type. In many cases of
interest, negative and positive energy states have been discussed for different
types of complex potentials.
