Amlodipine
"My blood pressure can be pretty high.  My doctor gave me 10mg of amlodipine and hydrochlorothiazide to counteract swelling in legs.  At first it made me groggy so I started taking it before bed.  That really helped, but I still felt a little groggy when I was inactive, so I started taking 5mgs of amlodipine in the morning and then 5mg at night before bedtime.  This helped tremendously.  The hydrochlorothiazide gives me cramps in my legs sometimes, but it's better than a stroke, so I think I'll live with it."