Great question. The answer is yes. You can mix Albuterol solvent with pulmicort solvent. We do this all the time in the hospital
Please note, however, that if you mix pulmocort and Atrovent (Ipatropium Bromide) the solvent will bubble and produce little mist. I say this only because many patients use a medicine called Duoneb, which has both Albuterol and Atrovent solvent premixed. Duoneb and Atrovent should NOT be mixed with Pulmicort.
I hope this helps. Any further questions feel free to ask.