"Excited about marriage" joke

Jacob, age 92, and Rebecca, age 89, are all excited about their decision to get married. They go for a stroll to discuss the wedding and on the way they pass a drugstore. Jacob
suggests they go in. Jacob addresses the man behind the counter:
'Are you the owner?' The pharmacist answers yes.
Says Jacob:' We're about to get married. Do you sell heart medication?'
Pharmacist:' Of course we do.'
Jacob:' How about medicine for circulation?'
Pharmacist:' All kinds.'
Jacob:' Medicine for rheumatism, scoliosis?'
Pharmacist:' Definitely.'
Jacob:' How about Viagra?'
Pharmacist:' Of course.'
Jacob:' Medicine for memory problems, arthritis, jaundice?'
Pharmacist:' Yes, a large variety. The works.'
Jacob:' What about vitamins, sleeping pills, Geritol, antidotes for Parkinson's disease?'
Pharmacist:' Absolutely.'
Jacob:' You sell wheelchairs and walkers?'
Pharmacist:' All speeds and sizes.'
Jacob says to the pharmacist:' We'd like to register here for our wedding gifts, please.'