No Definitely you should not take these medications, because for low blood pressure it needs more medical investigation and for it's associated problems to see what is causing low blood pressure for you? In this situation of your low BP, you should not take the medicines you asked for in your question, as it may worsen the conditions if not properly diagnosed.
Next Steps
Consult with doctors soon for the proper diagnosis for your low BP condition.
Health Tips
Frequent BP monitoring is needed, consult with doctors immediately for low BP condition.