Lisinopril is a type of medicine called an ACE inhibitor. Propranolol is a beta-adrenergic blocking agent.
Propranolol has a relatively short half life, so it begins to wear off within a few hours. You did not say what dose of med you took from your wife's Propranolol, however, with the short 1/2 life, this medication should be well out of your system by now.
Adding Effexor XL at 75mg will most likely cause you the same kinds of side effects you would notice from other anitdepressants - and each of us reacts differently so do stay in touch with your Dr.
I have used poor judgment in taking my meds also on occasion. If you should happen to have anything like this happen to you in the future, call your Dr. If he is not available, Poison Control can be your best friend.
Remember I am not a Dr.
Take care and keep talking with us as we are here to support you.
Kindly,
Kitt