Medicines and Hair Loss

Can my high blood pressure medicine (Triamt/HCTZ tab 37.5–25) cause my hair to have breakage?

Yes. Blood pressure medicines (and many other medicines) can cause hair loss. However, you should consider other sources of hair loss before focusing on a medication.

You should first be evaluated by your primary care doctor, because hair loss may be a symptom of an underlying medical problem.

A less than exclusive list of medications that cause hair loss are: allopurinol, arsenic, apirin, l-asparaginase, bismuth, bleomycin, boric acid, bromocriptine, carbamazepine, carbon monoxide, chlorambucil, chloramphenicol, cimetidine, colchicine, clofibrate, clomiphene citrate, coumarin anticoagulant, cyclophosphamide, cyproterone acetate, dactinomycin, danazol, diethyl carbamazepine, dipyridamole, doxorubicin, ethionamide, etoposide, etretinate, fenifibrate, gentamycin sulphate, guanethidine, heparin (telogen effluvium after 6-16 weeks ), hydroxychloroquine, ibuprofen, idoxuridine, indandione, indomethacin, interferon, iodine, isophosphamide, levamisole, levodopa, lithium, mepacrine, mercury, mesalazine, methisazone, methotrexate, methyl CCNU, methysurgide, metoprolol, mitomycin, mitrexantrone, morphine, nadolol, nafoxidine, nicotinic acid, nicotinyl alcohol, nitrofurantoin sodium, norethisterone, estrogens, oral contraceptives, para aminosalicylate, phenindione, phenprocoumon, potassium thiocyanate, procainamide, propanolol, selenium sulphide, sodium aurothiomalate, sodium valproate, spironolactone, sulphasalazine, tamoxifen, thalium acetate, thiamphenicol, terfenadine, trimethadione, troxidone, vasopressin, vincristine, vindesine, vitamin A, warfarin.

Sometimes I wonder if the hair loss side effect really occurs or if it is just verbiage that the drug companies put into their warnings to cover their legal ‘derriere’ in the event that it occurs. I so rarely see most of these drugs in action, so I am not really in a position to agree or disagree with what is published in the warnings posted on these medications.