Inderal and ortho tri-cyclen- no probelms/no interactions.
But regarding butalbital and ortho tri-cyclen taken together, your body may process the estrogen more quickly, thereby decreasing the effectiveness of the Pill. Although GLS said it's unlikely there IS a risk of pregnancy. Pregnant is pregnant.. You might want to discuss this one with your doctor.
Are you taking the Inderal for hypertension? If so, you should also know that Inderal (beta blocker)taken with a barbiturate (butalbital) may interact. The butalbital decreases the effects of the Inderal somewhat, possibly causing your pulse rate to be higher and your BP to increase. But as long as your BP is being monitored and all is okay, then don't worry.
zuzu xx