Can I take erythromycin and propranolol at the same time?

I take propranolol and today I was given erythromycin for a chest infection. I have been looking for some information on potential interactions, but haven't found much, Just as I was about to conclude that there must be no negative interactions, I come across this information:

"Because erythromycin is extensively metabolized by cytochrome P-450 3A (CYP3A) isozymes, commonly used medications that inhibit the effects of CYP3A may increase plasma erythromycin concentrations, thereby increasing the risk of ventricular arrhythmias and sudden death."

AND

"Drugs known to inhibt both CYP3A and P-glycoprotein include…propranolol"

Sounds like it may not be wise to mix the two. By the way, I'm on a very low daily dose of propranolol.

So, should I take them or not? Thanks.