Rolipram, a specific type IV phosphodiesterase inhibitor, is a potent inhibitor of HIV-1 replication.
Angel JB, Saget BM, Walsh SP, Greten TF, Dinarello CA, Skolnik PR, Endres S. Rolipram, a specific type IV phosphodiesterase inhibitor, is a potent inhibitor of HIV-1 replication. AIDS. 1995 Oct; 9(10):1137-44.