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.
For example, some people have both Alzheimerâs disease and vascular dementia. Other conditions that may cause memory loss or dementia include: 1  medication side effects. 2  chronic alcoholism. 3  tumors or infections in the brain. 4  blood clots in the brain. 5  vitamin B12 deficiency. 6  some thyroid, kidney, or liver disorders.