Do I need a doctor for taking oral minoxidil?

I’m going to start the Big 3 to at least TRY for some regrowth. As a 33 year old NW6 I don’t have much to lose. I do have a ton of minituarized hairs on my crown, so it’s worth a shot I suppose. My results over time would be connected with a hair transplant. Unfortunately, topical minoxidil doesn’t work for my lifestyle, so I want to try Oral Minoxidil, and switch to topical down the line. I’ve heard of some potentially dangerous cardiovascular risks associated with oral Minoxidil. I consider myself relatively healthy, with normal BP levels, although I haven’t had a physical in several years. Should I consult with a doctor prior to ordering oral minox? Or would a low dose (0.25-0.50 per day) be OK to start?

Get a good doctor and don’t be your own doctor here.