Switching topical to oral minoxidil?

It’s been 5 months since I’m applying topical minoxidil, now planning to switch to oral as it’s much more simpler to pop a pill, What all things should I consider before switching to oral and hope it’s safe to take oral and there are enough studies for same.

The oral is fairly safe, provided that your dose does not exceed 2.5mgs. Look up the side effects on Google, well defined. The worst of the side effects are cardiac, so make sure that if you get swelling of your feet and legs, that you speak with your doctors and probably stop the oral minoxidil.