According to businessdictionary.com, barriers to communication are defined as, âaspects of or conditionsâ¦ that interfere with effective exchange of ideas or thoughts.â Barriers to communication can be anything that distorts or prevents a message from being properly sent or received.
Infrequent side effects of Norvasc: 1  DizzyLess Severe. 2  DrowsinessLess Severe. 3  Feel Like Throwing UpLess Severe.  Heart Throbbing or PoundingLess 1  Severe. Low EnergyLess Severe.  Stomach CrampsLess 1  Severe. Temporary Redness of Face and NeckLess Severe.
Valerian Side Effects. Some of the possible side effects of valerian include headaches, morning drowsiness, and vivid dreams. The herbal supplement has also been reported to cause insomnia, excitability, and uneasiness when it was used for several months.