Demi-Regroton Side Effects

Generic Name: chlorthalidone / reserpine

Note: This page contains information about the side effects of chlorthalidone / reserpine. Some of the dosage forms included on this document may not apply to the brand name Demi-Regroton.

Not all side effects for Demi-Regroton may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

For the Consumer

Applies to chlorthalidone / reserpine: oral tablet

If you experience any of the following serious side effects, stop taking chlorthalidone and reserpine and seek emergency medical attention:

  • an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives);

  • a very irregular heartbeat;

  • chest pain;

  • heart failure (shortness of breath, swelling of ankles or legs, sudden weight gain of 5 pounds or more);

  • unusual fatigue;

  • abnormal bleeding or bruising;

  • yellow skin or eyes;

  • confusion;

  • fainting;

  • uncontrollable hand, arm, or leg movements; or

  • little or no urine.

Other, less serious side effects are more likely to occur. Continue to take chlorthalidone and reserpine and talk to your doctor if you experience

  • fatigue or drowsiness;

  • dizziness (avoid standing up too quickly and use caution when performing hazardous activities);

  • anxiety, depression, or nightmares;

  • diarrhea, nausea, vomiting, or acid stomach (take chlorthalidone and reserpine with food or milk if it upsets your stomach);

  • abdominal pain;

  • stuffy nose or a dry mouth (sucking on ice chips or sugarless hard candy may relieve a dry mouth);

  • blurred vision;

  • headache;

  • tingling or numbness in your arms, legs, hands, or feet;

  • excessive urination;

  • muscle weakness or cramps;

  • increased hunger or thirst;

  • weight gain;

  • sensitivity to sunlight; or

  • impotence or difficulty ejaculating.

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

For Healthcare Professionals

Applies to chlorthalidone / reserpine: oral tablet

Metabolic

In a prospective study of 83 patients who were taking daily doses of chlorthalidone 200 mg, 23 (28%) developed a decrease in their serum potassium concentration by at least 0.6 mEq/L. Keeping the serum potassium replenished during chlorthalidone therapy decreases the risk of arrhythmias, myopathy, hyponatremia and hyperglycemia.[Ref]

The metabolic side effects of chlorthalidone, as with other thiazide diuretics, may require electrolyte monitoring and/or potassium supplementation. Approximately 14% of patients develop hypokalemia during therapy. The risk of hypokalemia, hypomagnesemia, hyponatremia, and hypochloremia appears to be dose-related. Hypercalcemia and an increased serum bicarbonate may result from chlorthalidone diuresis.[Ref]

Respiratory

Rare reports of reserpine-induced bronchospasm are believed to be due to inactivation of beta-adrenergic receptors. This can result in a marked potentiation of the bronchoconstrictive effect of histamine.[Ref]

The respiratory system is affected by reserpine, with 8% of patients complaining of nasal congestion. A single case of bronchospasm has been associated with reserpine.[Ref]

Cardiovascular

The initial report from the Multiple Risk Factor Intervention Trial (MRFIT) raised the possibility that an earlier analysis suggesting increased coronary heart disease (CHD) mortality observed in a subset of men with hypertension who were taking diuretics may be misleading. Subsequent analysis of the data revealed no consistent relationship of CHD mortality to the dose of chlorthalidone, to the most recent serum potassium concentration, or to the presence of premature ventricular depolarizations (PVDs). It is probable that these men had left ventricular hypertrophy, which is associated with a greater incidence of PVDs, even in the absence of diuretic therapy.

Chlorthalidone-induced hypokalemia can rarely cause serious arrhythmias in otherwise healthy patients, but should not cause arrhythmias while keeping the serum potassium concentration within normal limits in patients who are predisposed to arrhythmias.

A woman with paroxysmal atrial tachycardia developed sinus pauses during reserpine therapy which were reproducible by carotid massage, except when isoproterenol was given. Reserpine is known to increase vagal tone and to deplete cardiac catecholamines.

One patient, in a series of 231, had emergent hypertension, stroke, and thyrotoxic crisis. Reserpine 1 mg intramuscularly resulted in a blood pressure drop from 180/100 to an unmeasurable level. The patient recovered after isoproterenol therapy.[Ref]

Cardiovascular side effects are related to decreased sympathetic tone associated with reserpine and decreased intravascular volume and hypokalemia associated with chlorthalidone. Hypotension has been reported in approximately 8% of patients; orthostatic hypotension complicated by syncope has been reported in rare cases. Hypokalemia may induce or provoke arrhythmias in some patients. A rare case of paroxysmal atrial tachycardia with block associated with reserpine in a patient who was not taking a digitalis preparation has been reported.[Ref]

Hypersensitivity

Hypersensitivity reactions to thiazide diuretics usually involve the skin. Thiazides and the chemically related drug, chlorthalidone, have been implicated as the cause of necrotizing vasculitis, psoriasiform eruptions, and pseudoporphyria (bullous photosensitive lesions) in rare cases.[Ref]

Nervous system

Increased parkinsonian movements upon reserpine withdrawal (as with neuroleptics) may be due to supersensitivity to dopamine as a result of increased dopamine receptors that developed during reserpine therapy.[Ref]

Common nervous system side effects include sedation, lethargy (different from the psychiatric syndrome of depression), drowsiness, weakness, vertigo, insomnia, or headache in approximately 1% to 5% of patients. While reserpine is used to treat tardive dyskinesia, extrapyramidal movements may worsen upon withdrawal of therapy. A case of CNS hypertension, believed to be due to cerebral edema, has been associated with reserpine. Sleep disturbances have been reported in 18% of patients who are taking chlorthalidone. These may be made worse with a sodium-restricted diet. Headache or fatigue has been reported in approximately 7% of patients.[Ref]

Renal

New or worsened renal insufficiency may develop if patients become too dehydrated. Chlorthalidone has been associated with mild decreases in urine concentrating ability and renal plasma flow, suggestive of interference with renal tubular function.[Ref]

Genitourinary

The etiology of sexual dysfunction associated with chlorthalidone is not known. One study of 19 middle-aged hypertensive men showed no significant decrease in serum zinc or testosterone levels relative to a control group of 31 unmedicated middle-aged normotensive men. While sexual dysfunction was reported in 42% of treated men (compared to 16% in the control group), serum testosterone and zinc levels were actually higher in the treated group, and were highest in the men on the highest dose of chlorthalidone.

One study revealed that sexual dysfunction associated with chlorthalidone may be worsened by a low sodium diet and ameliorated by a diet designed to help lose weight. The influence of diet alone or the associated nutritional counseling and sense of well-being on sexual function was not measured.[Ref]

Genitourinary problems include decreased sexual libido, erections, or orgasm in 5% (reserpine) to 42% (chlorthalidone) of male patients. Decreased sexual arousal and orgasm are rarely reported among female patients.[Ref]

Endocrine

Endocrinologic abnormalities related to chlorthalidone, as with other thiazide diuretics, include decreased glucose tolerance and an adverse effect on the lipid profile. This may be important in some patients with a history of diabetes or coronary artery disease. Reserpine-induced hyperprolactinemia can result in gynecomastia in men or breast engorgement or pseudolactation in women.[Ref]

Chlorthalidone is associated with increases in total serum cholesterol, triglycerides, and LDL cholesterol.

At least one case of severe glucose intolerance, resulting in hyperosmolar hyperglycemic nonketotic coma, has been associated with chlorthalidone. The patient did not have diabetes, had a normal fasting blood glucose prior to chlorthalidone therapy, and did well on no antidiabetic medications after resolution of the acute episode of hyperglycemia. Infection and myocardial infarction were ruled out.[Ref]

Gastrointestinal

Due to unopposed parasympathetic activity produced by catecholamine depletion, reserpine increases gastrointestinal motility and secretory activity. Because of this, new diarrhea or worsening of existing diarrhea or increased salivation has been reported in 2% of patients. Increased appetite, abdominal pain, or vomiting have rarely been reported. Approximately 5% to 10% of patients who are taking chlorthalidone complain of nausea, vomiting, abdominal cramping, diarrhea, or constipation. A case of acute bacterial pancreatitis and rare cases of intrahepatic cholestasis have been associated with chlorthalidone.[Ref]

Psychiatric

Psychiatric problems related to reserpine therapy can be serious. Depression occurs in 2% to 28% of patients, is more likely when daily doses exceed 0.5 mg, and can present at any time during therapy. Suicidal ideation has been reported. Reserpine-induced depression is quickly reversible if therapy is withdrawn as soon as the syndrome is recognized, but can persist for several months after drug discontinuation if the syndrome fully develops. Reserpine withdrawal psychosis has been reported.[Ref]

The depressive syndrome usually consists of melancholy, loss of self confidence, early morning awakening, loss of libido and reduced appetite.

A case of reserpine withdrawal psychosis has been reported. This uncommon condition may be due to dopamine receptor supersensitivity, which develops during reserpine therapy.[Ref]

Musculoskeletal

Cases of progressive generalized paralysis associated with chlorthalidone-induced hypokalemia have been reported. In some of these cases, muscle histology is remarkable for vacuolar degeneration.[Ref]

Musculoskeletal weakness or cramps have been reported in approximately 7% of patients. Chlorthalidone-induced hypokalemia has resulted in hypokalemic myopathy in rare cases.[Ref]

Hematologic

Rare hematologic side effects have been associated with chlorthalidone, including neutropenia, agranulocytosis, thrombocytopenia, and aplastic anemia.[Ref]

A 63-year-old man with hypertension, ischemic heart disease, chronic bronchitis, and type II diabetes mellitus was stable on multiple medications until chlorthalidone was substituted for hydrochlorothiazide. Within three weeks after beginning chlorthalidone, the patient developed a diffuse upper extremity pruritic rash, fever, dyspnea, malaise, and fatigue associated with a peripheral leukocyte count of 2,000/mm3. Bone marrow aspiration revealed hypocellularity of the myeloid line only. Within nine days after stopping chlorthalidone, the patient's leukocyte count returned to normal. No other cause of neutropenia was discovered; an antineutrophil antibody was investigated, but not proven.[Ref]

Ocular

The mechanism of myopia is unknown. There is evidence of an allergic reaction, where the ciliary body may become edematous, and of a direct disturbance by chlorthalidone of the normal salinity of the lens. Either may alter the refractive index. In some cases, ultrasonography of affected eyes has shown a difference both in the anterior chamber depth and in the lens thickness during chlorthalidone therapy.[Ref]

A rare ocular side effect, transient myopia, has been associated with chlorthalidone.[Ref]

Immunologic

Immunologic side effects are rare. A single case of angioimmunoblastic lymphadenopathy has been associated with reserpine. In a study of 231 patients, only 1 case of a lupus-like syndrome was observed (the patient had previously received hydralazine).[Ref]

A 79-year-old woman with hypertension, taking reserpine, potassium, HCTZ, and ibuprofen, developed fatigue, anorexia, fever, night sweats, and weight loss. Associated laboratory findings showed anemia, lymphocytosis, thrombocytopenia, IgA kappa paraproteinemia, positive ANA, and a positive Coombs' test. Bone marrow biopsy, lymphangiography, and lymph node biopsy showed bone marrow lymphocytosis, enlarged foamy abdominal lymph nodes with irregular filling, and angioimmunoblastic lymphadenopathy. Within four days after discontinuation of reserpine (her other medications were continued), the paraprotein level normalized and the platelet count rose. After an additional nine months of prednisone therapy, all signs and symptoms resolved.[Ref]

Oncologic

Oncologic concerns were raised after a large drug surveillance center in Boston reported an association between reserpine, a stimulator of prolactin, and breast cancer, which was partially, but not completely, confirmed in two similar centers in Europe. A critical review of these studies elucidated several design flaws. Subsequent, controlled studies have failed to show an association between reserpine and an increased incidence of breast carcinoma.[Ref]

References

1. Cembrowski GS, Huntington RW, 3d "Probable fatal cardiac dysrhythmia secondary to diuretic-induced hypokalemia." Am J Forensic Med Pathol 2 (1981): 243-8

2. Perry HM, Jr "Some wrong-way chemical changes during antihypertensive treatment: comparison of indapamide and related agents." Am Heart J 106 (1983): 251-7

3. Remenchik AP, Johnston LC "Potassium depletion produced by administration of chlorthalidone to nonedematous patients with arterial hypertensin." Am J Med Sci 252 (1966): 171-6

4. Katz FH, Eckert RC, Gebott MD "Hypokalemia caused by surreptitious self-administration of diuretics." Ann Intern Med 76 (1972): 85-90

5. Stewart DE, Ikram H, Espiner EA, Nicholls MG "Arrhythmogenic potential of diuretic induced hypokalaemia in patients with mild hypertension and ischaemic heart disease." Br Heart J 54 (1985): 290-7

6. Berg KJ, Gisholt K, Wideroe TE "Potassium deficiency in hypertensives treated with diuretics. Analysis of three alternative treatments by an oral test for potassium deficiency." Eur J Clin Pharmacol 7 (1974): 401-5

7. Sumiye L, Vivian AS, Frisof KB, Podany EC "Potassium loss associated with hydrochlorothiazide versus chlorthalidone." Clin Ther 4 (1981): 308-20

8. Curtis J, Horrigan F, Ahearn D, Varney R, Sandler SG "Chlorthalidone-induced hyperosmolar hyperglycemic nonketotic coma." JAMA 220 (1972): 1592-3

9. Chowdhury FR, Bleicher SJ "Chlorthalidone--induced hypokalemia and abnormal carbohydrate metabolism." Horm Metab Res 2 (1970): 13-6

10. Falch DK, Schreiner AM "Changes in urinary electrolytes versus serum electrolytes during treatment of primary hypertension with chlorthalidone alone and in combination with spironolactone." Acta Med Scand 209 (1981): 111-4

11. Mozes B, Pines A, Werner D, Olchovsky D, Lieberman P, Frankl O "Thiazide-induced hyponatremia: an unusual neurologic course." South Med J 79 (1986): 629-31

12. Landmann-Suter R, Struyvenberg A "Initial potassium loss and hypokalaemia during chlorthalidone administration in patients with essential hypertension: the influence of dietary sodium restriction." Eur J Clin Invest 8 (1978): 155-64

13. Navarro RP, O'Brien DK, Nuffort P, Spencer DL "Diuretic induced hypokalemia in the elderly." J Fam Pract 14 (1982): 685-9

14. Papademetriou V, Fletcher R, Khatri IM, Freis ED "Diuretic-induced hypokalemia in uncomplicated systemic hypertension: effect of plasma potassium correction on cardiac arrhythmias." Am J Cardiol 52 (1983): 1017-22

15. Carney SL, Morgan TO "Diuretic-induced hypokalemia and altered renal function." Int J Clin Pharmacol Ther Toxicol 24 (1986): 665-7

16. Fichman MP, Vorherr H, Kleeman CR, Telfer N "Diuretic-induced hyponatremia." Ann Intern Med 75 (1971): 853-63

17. Jensen OB, Mosdal C, Reske-Nielsen E "Hypokalemic myopathy during treatment with diuretics." Acta Neurol Scand 55 (1977): 465-82

18. Kuller L, Farrier N, Caggiula A, Borhani N, Dunkle S "Relationship of diuretic therapy and serum magnesium levels among participants in the Multiple Risk Factor Intervention Trial." Am J Epidemiol 122 (1985): 1045-59

19. Palmer FJ "Letter: Chlorthalidone-induced hypercalcemia." JAMA 229 (1974): 267

20. Murayama M, Yasuda K, Minamori Y, Mercado-Asis LB, Yamakita N, Miura K "Long term follow-up of Cushing's disease treated with reserpine and pituitary irradiation." J Clin Endocrinol Metab 75 (1992): 935-42

21. Diamond L "Drug-induced bronchospasm." J Clin Pharmacol J New Drugs 10 (1970): 215-6

22. Applegate WB, Carper ER, Kahn SE, Westbrook L, Linton M, Baker MG, Runyan JW, Jr "Comparison of the use of reserpine versus alpha-methyldopa for second step treatment of hypertension in the elderly." J Am Geriatr Soc 33 (1985): 109-15

23. Freis ED "Reserpine in hypertension: present status." Am Fam Physician 11 (1975): 120-2

24. Kirschenbaum HL, Rosenberg JM "What to look out for with guanethidine and reserpine." RN 47 (1984): 31-3

25. Segal MS "Bronchospasm after reserpine." N Engl J Med 281 (1969): 1426-7

26. Gibb WE, Malpas JS, Turner P, White RJ "Comparison of bethanidine, alpha-methyldopa, and reserpine in essential hypertension." Lancet 2 (1970): 275-7

27. Luxenberg J, Feigenbaum LZ "The use of reserpine for elderly hypertensive patients." J Am Geriatr Soc 31 (1983): 556-9

28. Atuk NO, Owen JA, Jr "Bronchospasm after reserpine." N Engl J Med 281 (1969): 908-9

29. Burris JF, Davidov ME, Jenkins P, Rofman B, Ginsberg D, Rosenbaum R, Ryan JR, Jain AK, Mroczek WJ "Comparison of the antihypertensive effects of betaxolol and chlorthalidone as monotherapy and in combination." Arch Intern Med 149 (1989): 2437-41

30. Kuller LH, Hulley SB, Cohen JD, Neaton J "Unexpected effects of treating hypertension in men with electrocardiographic abnormalities: a critical analysis." Circulation 73 (1986): 114-23

31. Combs RM "Unusual response to reserpine in paroxysmal atrial tachycardia with block unassociated with digitalis." South Med J 60 (1967): 839-42

32. Sharon E, Paolino JS, Kaplan D "Hematemesis after reserpine for Raynaud's phenomenon." Ann Intern Med 77 (1972): 479-80

33. "Product Information. Thalitone (chlorthalidone)." Monarch Pharmaceuticals Inc, Bristol, TN.

34. Berlant JL "Neuroleptics and reserpine in refractory psychoses." J Clin Psychopharmacol 6 (1986): 180-4

35. MacGregor GA, Tasker PR, de Wardener HE "Diuretic-induced oedema." Lancet 1 (1975): 489-92

36. Obel AO "Efficacy and tolerability of long term oxprenolol and chlorthalidone singly and in combination in hypertensive blacks." Jpn Heart J 31 (1990): 183-92

37. Widmer RB "Reserpine: the maligned antihypertensive drug." J Fam Pract 20 (1985): 81-3

38. Pfeifer HJ, Greenblatt DK, Koch-Wester J "Clinical toxicity of reserpine in hospitalized patients: a report from the Boston Collaborative Drug Surveillance Program." Am J Med Sci 271 (1976): 269-76

39. Smith N "Acute stomatitis medicamentosa. Two case reports." Aust Dent J 23 (1978): 305-7

40. Pallin O, Ericsson R "Ultrasound studies in a case of hygroton-induced myopia." Acta Ophthalmol (Copenh) 43 (1965): 692-6

41. Bjornberg A, Gisslen H "Thiazides: A cause of necrotising vasculitis?" Lancet 2 (1965): 982-3

42. Baker EJ, Reed KD, Dixon SL "Chlorthalidone-induced pseudoporphyria: clinical and microscopic findings of a case." J Am Acad Dermatol 21 (1989): 1026-9

43. Wassertheil-Smoller S, Oberman A, Blaufox MD, Davis B, Langford H "The Trial of Antihypertensive Interventions and Management (TAIM) Study. Final results with regard to blood pressure, cardiovascular risk, and quality of life." Am J Hypertens 5 (1992): 37-44

44. Dilsaver SC, Greden JF "Possible cholinergic mechanism in reserpine and tardive dyskinesia." Am J Psychiatry 141 (1984): 151-2

45. Reus VI "Behavioral side effects of medical drugs." Prim Care 6 (1979): 283-94

46. Bacher NM, Lewis HA "Reserpine and tardive dyskinesia." Am J Psychiatry 141 (1984): 719

47. Donatelli A, Geisen L, Feuer E "Case report of adverse effect of reserpine on tardive dyskinesia." Am J Psychiatry 140 (1983): 239-40

48. Snaith RP, McCoubrie M "Antihypertensive drugs and depression." Psychol Med 4 (1974): 393-8

49. Ross RT "Drug-induced parkinsonism and other movement disorders." Can J Neurol Sci 17 (1990): 155-62

50. Goodwin FK, Bunney WE, Jr "Depressions following reserpine: a reevaluation." Semin Psychiatry 3 (1971): 435-48

51. Peters HA "Questioning reserpine's adverse effect on tardive dyskinesia." Am J Psychiatry 140 (1983): 1106

52. Geissler AH, Turnlund JR, Cohen RD "Effect of chlorthalidone on zinc levels, testosterone, and sexual function in man." Drug Nutr Interact 4 (1986): 275-83

53. Stessman J, Ben-Ishay D "Chlorthalidone-induced impotence." Br Med J 281 (1980): 714

54. Andersen OO, Persson I "Carbohydrate metabolism during treatment with chlorthalidone and ethacrynic acid." Br Med J 2 (1968): 798-801

55. Ames RP, Hill P "Increase in serum-lipids during treatment of hypertension with chlorthalidone." Lancet 1 (1976): 721-3

56. Dillon PT, Babe J, Meloni CR, Canary JJ "Reserpine in thyrotoxic crisis." N Engl J Med 283 (1970): 1020-3

57. Eckhauser ML, Dokler M, Imbembo AL "Diuretic-associated pancreatitis: a collective review and illustrative cases." Am J Gastroenterol 82 (1987): 865-70

58. Blumenthal M, Davis R, Doe RP "Carcinoid syndrome following reserpine therapy in thyrotoxicosis." Arch Intern Med 116 (1965): 819-23

59. Lewis WH "Iatrogenic psychotic depressive reaction in hypertensive patients." Am J Psychiatry 127 (1971): 1416-7

60. Kent TA, Wilber RD "Reserpine withdrawal psychosis: the possible role of denervation supersensitivity of receptors." J Nerv Ment Dis 170 (1982): 502-4

61. Ambrosino SV "Depressive reactions associated with reserpine." N Y State J Med 74 (1974): 860-4

62. Fleishman M "Letter: Reserpine, ECT, and depression." Am J Psychiatry 132 (1975): 1088

63. Samuels AH, Taylor AJ "Reserpine withdrawal psychosis." Aust N Z J Psychiatry 23 (1989): 129-30

64. Oh SJ, Douglas JE, Brown RA "Hypokalemic vacuolar myopathy associated with chlorthalidone treatment." JAMA 216 (1971): 1858-9

65. Writer ST, Stevens DL, Starkebaum G "Chlorthalidone-associated neutropenia." West J Med 136 (1982): 59-61

66. Stennis SD "Drug-induced myopia: a case report." Am J Optom Physiol Opt 53 (1976): 422-3

67. D'Alena P, Robinson M "Hygroton-induced myopia." Calif Med 110 (1969): 134-5

68. Entrican JH, Denburg JA, Gauldie J, Kelton JG "Angioimmunoblastic lymphadenopathy associated with reserpine." Lancet 2 (1984): 820-1

69. Mack TM, Henderson BE, Gerkins VR, et al "Reserpine and breast cancer in a retirement community." N Engl J Med 292 (1975): 1366-71

70. Labarthe DR, O'Fallon WM "Reserpine and breast cancer. A community-based longitudinal study of 2,000 hypertensive women." JAMA 243 (1980): 2304-10

71. Kodlin D, McCarthy N "Reserpine and breast cancer." Cancer 41 (1978): 761-8

72. Newball HH, Byar DP "Does reserpine increase prolactin and exacerbate cancer of prostate? Case control study." Urology 2 (1973): 525-9

73. Jick H "Editorial: Reserpine and breast cancer: a perspective." JAMA 233 (1975): 896-7

74. Curb JD, Hardy RJ, Labarthe DR, Borhani NO, Taylor JO "Reserpine and breast cancer in the Hypertension Detection and Follow- Up Program." Hypertension 4 (1982): 307-11

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