Here is some info that comes from Pilot Medical Solutions Website
http://www.leftseat.com/bpchange.htm
Flight Fitness | Blood Pressure
Pilots with a diagnosis of hypertension or those on medication to control blood pressure must provide a detailed cardiovascular evaluation for FAA consideration. While aviation medical examiners may defer lower values, the FAA disqualifies pilots with a systolic (higher number) blood pressure at or above 155 or a diastolic (lower number) pressure at or above 95.
If your blood pressure is elevated, speak with your physician about how to reduce your blood pressure. It may be possible to reduce your blood pressure by limiting the sodium (salt) in your diet, losing weight if overweight, taking medication, limiting your alcohol intake and/or increasing your physical activity.
Although reducing your blood pressure by lifestyle modification is preferred, it may be best to utilize medication initially to reduce the risk for arterial damage and stroke. Eventually exercise and diet may permit you to discontinue the medication.
Blood Pressure (Hypertension) Centrally acting agents such as Guanethidine, Guanadrel, Guanabenz, Methyldopa, and Reserpine are not acceptable to the FAA.
The following medications are FAA approved on a case by case basis: Alpha Blockers / Inhibitors
Cardura (Doxazosin)
Catapres (Clonidine)
Dibenzyline (Phenoxybenzamine)
Hytrin (Terazosin)
Micardis (Telmisartan)
Minipress, Minizide (Prazosin)
Beta Blockers
Blocadren, Timolide (Timolol)
Cartrol (Carteolol)
Cibenzyline (Phenoxybenzamine)
Coreg (Carvedilol)
Corgard, Corzide (Nadolol)
Inderal, Inderide, Innopran (Propranolol)
Kerlone (Betaxolol)
Levatol (Penbutolol)
Lopressor, Toprol (Metoprolol)
Normodyne, Trandate (Labetalol)
Sectral (Acebutolol)
Tenormin, Tenoretic (Atenolol)
Visken (Pindolol)
Zebeta, Ziac (Bisoprolol)
Calcium Channel Blockers
Adalat, Procardia (Nifedipine)
Caduet (Amlodipine Besylate + Atorvastatin Calcium)
Cardizem, Dilacor, Tiazac (Diltiazem)
Cardene (Nicardipine)
Calan, Covera, Isoptin, Veralan, Tarka (Verapamil)
DynaCirc (Isradipine)
Norvasc, Lotrel (Amlodipine)
Plendil, Lexxel (Felodipine)
Posicor (Mibefradil)
Sular (Nisoldipine)
Angiotensin Converting Enzyme (ACE) Inhibitors
Aceon (Perindopril Erbumine)
Accupril (Quinapril)
Altace (Ramipril)
Capoten, Capozide (Captopril)
Lotensin (Benazepril)
Mavik (Trandolapril)
Monopril (Fosinopril)
Prinivil, Prinzide, Zestril, Zestoretic (Lisinopril)
Univasc, Unitrec (Moexipril)
Vasotec, Vaseretic (Enalapril)
Angiotensin II Receptor Antagonists
Atacand (Candesartan)
Avapro, Avalide (Irbesartan)
Benicar (Olmesartan Medoxomil)
Benicar HCT (Olmesartan Medoxomil + Hydrochlorothiazide)
Cozaar, Hyzaar (Losartan)
Diovan (Valsartan)
Micardis (Telmisartan)
Diuretics
Aldactone, Aldactazide (Spironolactone)
Bumex (Bumetanide)
Camadex, Demadex (Torsemide)
Diuril, Hydrochlorothiazide, HCTZ, Hydrodiuril, Oretic, Enduron (Thiazides)
Dyazide, Maxzide, Moduretic (Combinations)
Dyrenium (Triamterene)
Lasix (Furosemide)
Lozol (Indapamide)
Mykrox (Metolazone)
Zaroxolyn, Mykrox (Metolazone)