List of plants poisonous to equines. Paterson's Curse has been responsible for the deaths of many horses. Many plants are poisonous to equines; the species vary depending on location, climate, and grazing conditions. In many cases, entire genera are poisonous to equines and include many species spread over several continents.
A number of prescription and over-the-counter medications can interfere with or cause loss of memory. Possible culprits include: antidepressants, antihistamines, anti-anxiety medications, muscle relaxants, tranquilizers, sleeping pills, and pain medications given after surgery. Alcohol, tobacco, or drug use.
Some causes of communication disorders include hearing loss, neurological disorders, brain injury, mental retardation, drug abuse, physical impairments such as cleft lip or palate, vocal abuse or misuse, emotional or psychiatric disorders, and developmental disorders. Frequently, however, the cause is unknown. It is estimated one in every 10 Americans of all ages, races and genders, have experienced or lived with some type of communication disorder (including speech, language and hearing disorders). Nearly 6 million children under the age of 18 have a speech or language disorder. There are many potential causes of communication impairment; the most common is mental retardation.