Some causes of<unk>  include neurodegenerative disorders, low blood volume (e.g. caused by dehydration, bleeding, or the use of diuretics), drugs that cause vasodilation, other types of drugs (notably, narcotics and marijuana), discontinuation of vasoconstrictors, prolonged bed rest (immobility), significant recent weight loss, anemia, or recent bariatric surgery. Medication Tetrahydrocannabinol<unk>  can be a side effect of certain antidepressants, such as tricyclics or monoamine oxidase inhibitors (MAOIs). Marijuana and tetrahydrocannabinol can on occasion produce marked<unk> . Alcohol can potentiate<unk>  to the point of syncope.<unk>  can also be a side effect of alpha-1 blockers (alpha1 adrenergic blocking agents). Alpha1 blockers inhibit vasoconstriction normally initiated by the baroreceptor reflex upon postural change and the subsequent drop in pressure. Other factors Patients prone to<unk>  are the elderly, post partum mothers, and those having been on bed rest. People suffering from anorexia nervosa and bulimia nervosa often suffer from<unk>  as a common side effect. Consuming alcohol may also lead to<unk>  due to its dehydrating effects.
Orthostatic hypotension
Reflex syncope  Reflex syncope  1
Carotidynia
Reflex bradycardia
Oscillopsia
Cardiovascular drift
Cyclospasm
Hyperpathia