Yes, it's common. And this is why the whole "pre-existing condition" issue with health insurance is a big problem. At some point in your life, you have a very high chance of having some kind of pre-existing condition.
https://assets.aarp.org/rgcenter/health/rx_midlife_plus.pdf
- The vast majority of Americans age 50+ (85%) say they have taken a prescription drug in the past five years, and three-fourths (76%) say they are currently taking at least one prescription drug on a regular basis.
- Women (79%) are somewhat more likely to say they are taking a prescription drug than men (71%).
- Americans age 65+ (87%) are even more likely to say they take a prescription drug on a regular basis than those between the ages of 50-64 years (67%).
- Those who say they are currently taking prescription drugs regularly say they take on average four different prescriptions drugs daily.