While we are on the subject of Amlodipine. I have marginal high blood pressure. Read an article in a medical journal about 5 yrs ago about a large study of giving people like me small doses of 3 different common BP drugs. Basically 1/2 the amount of the minimum dose I can find here in Thailand (have to cut the pills). Completely keeps me dialed in for the last 5 yrs for BP. All 3 drugs from the pharmacy, no need to see the Dr. Here are the drugs and doses:
telmisartan (20 mg),
amlodipine (2.5 mg)
chlorthalidone (12.5 mg)
Costs me about $0.45 per day. Funny note: The US now has a triple pill that is 2 out of 3 of the exact same drugs with the 3rd being an analog (functions the same) of the one I'm using. Discounted online pharmacy... $13.00 per daily pill. BTW, I also suffer a bit from BPH (have a naturally large prostate and beer seems to enlarge it), handle that with 5mg of Tadalafil (Apcalis in Thailand) daily and that works great. Had a tiff with a Dr at BKK Hospital who said it's only for ED (that would be 10mg minimum) until I pointed out it was originally developed for heart circulation with ED being a side effect and that, at 5mg, is commonly prescribed in Europe for BPH.
Hope all well with everyone!