A number of factors may contribute to drug-induced orthostatic hypotension. A person who is taking a drug that can cause orthostatic hypotension should try to avoid or adjust to these conditions when possible.
Factors that may contribute to drug-induced hypotension include:
(1) older age
(2) eating a large meal
(3) prolonged sitting or lying down
(4) standing motionless (without leg muscle contractions)
(5) isometric exercise (Valsalva)
(6) straining while urinating or defecating (Valsalva)
(7) drinking a large amount of alcohol
(8) high effective environmental temperature (with or without high humidity)
(9) rapid ascent to a high altitude
(10) hot shower or bath (with rapid vasodilatation)