The Alternate Rim World Universe: Frontier of the Dark by A. Bertram Chandler

The Werewolf Effect.
The Mannschenn Drive was the gateway to the stars, but it had one unfortunate side effect: Traveling faster than light, mankind reverted to the bestial form of his own legendary nightmare – the lycanthropic horror that the full moon once called forth from the soul’s depths, now no longer howling at the moon but soaring far beyond it…