No such problems occured with the herbs. No side effects were reported. In lab animals, Valerian steadies heart arrhythmias, according to a Bulgarian study. Another study in Italy used Valerian, Passionflower, Chamomile and Hawthorn on children with ADD . It calmed them down without side-effects.
Passionflower is also a mild sedative and was historically used for anxiety.
Research confirms its use in insomnia, dysmenorrhea, nervous tension, fatigue and muscle spasms. Hops are used as a flavoring agent in beer. Since hops promote healthy digestion and is an appetite stimulant, it is especially favorable for those whose insomnia is a result of bad digestive processes. It is also relaxing and sedating. Ancient Hebrews used Hops to ward off the plague and in fact, it is active against Yersinia pestis , the plague bacteria, as well as others such as Staph.