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Side Effects


Uniretic® has been evaluated for safety in more than 1140 patients with hypertension with more than 120 treated for more than one year. uniretic® has not demonstrated a potential for causing adverse experiences different from those previously associated with other ACE inhibitor/diuretic combinations. The overall incidence of reported adverse events was slightly less in patients treated with uniretic® than patients treated with placebo.

Adverse experiences were usually mild and transient, and there was no relationship between adverse experiences and gender, race, age, or total daily dosage (except for serum potassium decreases at 50 mg hydrochlorothiazide) within the moexipril/ hydrochlorothiazide dosage range of 3.75 mg / 3.125 mg to 30 mg / 50 mg. Discontinuation of therapy due to adverse experiences was required in 5.3% of patients treated with uniretic® and in 8.4% of patients treated with placebo. The most common reasons for discontinuation of therapy with uniretic® were cough (0.5%) and dizziness (0.5%).

All adverse experiences considered at least possibly related to treatment that occurred at any dose in placebo-controlled trials of once-daily dosing in more than 1% of patients treated with uniretic® and that were at least as frequent in the uniretic® group as in the placebo group are shown in the following table.

Adverse Events in Placebo-Controlled Trials

N (%)
N (%)
Cough 15 (3) 2 (1)
Dizziness 7 (1.4) 2 (1)
Fatigue 5 (1) 1 (0.5)

Other adverse experiences occurring in more than 1% of patients treated with uniretic® in controlled or uncontrolled trials, some of which were of uncertain drug relationship, listed in decreasing frequency include: upper respiratory infection, headache, pain, flu syndrome, pharyngitis, hyperuricemia, diarrhea, back pain, rhinitis, sinusitis, abnormal ECG, infection, abdominal pain, chest pain, dyspepsia, hyperglycemia, hypokalemia, rash, vertigo, nausea, hypertonia, increased SGPT, urinary tract infection, impotence, peripheral edema, pyuria, bronchitis, and fever. See WARNINGS and PRECAUTIONS for discussion of anaphylactoid reactions, angioedema, hypotension, neutropenia/agranulocytosis, fetal/neonatal morbidity and mortality, serum electrolyte imbalances, and cough.

The following adverse experiences, some of which are of uncertain drug relationship, were reported in uniretic® controlled or uncontrolled clinical trials in less than 1% of patients or have been attributed to other ACE inhibitors. Within each organ system, adverse experiences are listed in decreasing frequency.

Cardiovascular: palpitation, flushing, syncope, tachycardia, myocardial infarct, hypotension, postural hypotension, arrhythmia, first degree AV block, ventricular extrasystoles, atrial fibrillation, migraine, hemorrhage, sinus bradycardia, bigeminy, bradycardia, bundle branch block, heart arrest, myocardial ischemia, peripheral vascular disorder, prolonged QT interval, inverted T wave, ventricular fibrillation

Dermatologic: eczema, pruritus, sweating, acne, dry skin, herpes simplex, contact dermatitis, herpes zoster, psoriasis, alopecia, angioedema, erythema nodosum, fungal dermatitis, furunculosis, maculopapular rash, purpuric rash, skin carcinoma, subcutaneous nodule, urticaria, pemphigus

Gastrointestinal: vomiting, constipation, gastroenteritis, periodontal abscess, cholelithiasis, gastritis, gingivitis, esophagitis, flatulence, anorexia, colitis, dysphagia, tooth caries, cheilitis, enteritis, eructation, gastrointestinal carcinoma, gastrointestinal hemorrhage, glossitis, increased appetite, jaundice, melena, rectal hemorrhage, stomatitis, tongue discoloration, tongue edema

Hematologic: anemia, hypochromic anemia, leukopenia, abnormal erythrocytes, ecchymosis, lymphocytosis, hemolysis, lymphadenopathy, eosinophilia, petechia, abnormal WBC, hemolytic anemia

Metabolic: hyperlipemia, increased SGOT, gout, bilirubinemia, increased creatinine, hypercholesterolemia, increased BUN, increased CPK, diabetes mellitus, hyponatremia, thirst, edema, increased alkaline phosphatase, increased amylase, dehydration, decreased glucose tolerance, goiter, hypercalcemia, hyperkalemia, hypocalcemia, hypochloremia, hypoproteinemia, weight gain

Neurologic/Psychiatric: insomnia, postural dizziness, somnolence, dry mouth, anxiety, nervousness, paresthesia, depression, neuritis, hypesthesia, decreased libido, neuralgia, amnesia, ataxia, cerebral infarct, emotional lability, facial paralysis, hypokinesia, neurosis, vocal cord paralysis

Renal: albuminuria, urinary frequency, hematuria, glycosuria, cystitis, dysuria, nocturia, polyuria, kidney calculus, pyelonephritis, urate crystalluria, urinary casts, urinary retention

Respiratory: epistaxis, pneumonia, dyspnea, asthma, lung carcinoma, hemoptysis, laryngitis, voice alteration, eosinophilic pneumonitis

Urogenital: vaginal hemorrhage, breast carcinoma, scrotal edema, vaginitis, breast enlargement, breast pain, dysmenorrhea, leukorrhea

Other: asthenia, conjunctivitis, myalgia, arthralgia, arthrosis, hernia, neck pain, cyst, tenosynovitis, abnormal vision, allergic reaction, arthritis, cataract, cellulitis, moniliasis, otitis media, eye hemorrhage, chills, abscess, bursitis, deafness, ear pain, glaucoma, iritis, neck rigidity, photosensitivity, retinal degeneration, tinnitus

Monotherapy with moexipril has been evaluated for safety in over 3000 patients. In clinical trials, the observed adverse experiences with moexipril were similar to those seen in the uniretic® trials.

Hydrochlorothiazide: The following adverse reactions have been reported with hydrochlorothiazide and, within each organ system, are listed by decreasing severity.

Cardiovascular: orthostatic hypotension (may be potentiated by alcohol, barbiturates, or narcotics)

Gastrointestinal: pancreatitis, jaundice (intrahepatic cholestatic, see WARNINGS), sialadenitis, vomiting, diarrhea, cramping, nausea, gastric irritation, constipation, anorexia

Neurologic/Psychiatric: vertigo, dizziness, transient blurred vision, headache, paresthesia, xanthopsia, weakness, restlessness

Musculoskeletal: muscle spasm

Hematologic: aplastic anemia, agranulocytosis, leukopenia, thrombocytopenia

Metabolic: hyperglycemia, glycosuria, hyperuricemia

Hypersensitivity: necrotizing angiitis, Stevens-Johnson syndrome, respiratory distress including pneumonitis and pulmonary edema, purpura, urticaria, rash, photosensitivity

Clinical Laboratory Test Findings

Serum Electrolytes


Creatinine and Blood Urea Nitrogen

As with other ACE inhibitors, minor increases in blood urea nitrogen or serum creatinine, reversible upon discontinuation of therapy, were observed in less than 1% of patients with essential hypertension who were treated with uniretic®. Increases are more likely to occur in patients with compromised renal function (see PRECAUTIONS, General).

Other (causal relationship unknown)

Clinically important changes in standard laboratory tests were rarely associated with uniretic® administration.

Read the Uniretic (moexipril hcl hydrochlorothiazide tablets) Side Effects Center for a complete guide to possible side effects


Potassium Supplements and Potassium-Sparing Diuretics

As noted above (Serum Electrolyte Imbalances), the net effect of uniretic® may be to elevate a patient's serum potassium, to reduce it, or to leave it unchanged. Potassium-sparing diuretics (spironolactone, amiloride, triamterene) or potassium supplements can increase the risk of hyperkalemia. If concomitant use of such agents is indicated, they should be given with caution, and the patient's serum potassium should be monitored.

Oral Anticoagulants

Interaction studies with warfarin failed to identify any clinically important effect of moexipril monotherapy on the serum concentrations of the anticoagulant or on its anticoagulant effect.


Increased serum lithium levels and symptoms of lithium toxicity have been reported in patients receiving ACE inhibitors during therapy with lithium. Because renal clearance of lithium is reduced by thiazides, the risk of lithium toxicity is presumably raised further when, as in therapy with uniretic®, a thiazide diuretic is coadministered with the ACE inhibitor. These drugs should be coadministered with caution, and frequent monitoring of serum lithium levels is recommended.


Nitritoid reactions (symptoms include facial flusing, nausea, vomiting and hypotension) have been reported rarely in patients on therapy with injectable gold (sodium aurothiomalate) and concomitant ACE inhibitor therapy including uniretic®.

Alcohol, Barbiturates, or Narcotics

Potentiation of orthostatic hypotension may occur in patients on thiazide diuretic therapy with concomitant use of alcohol, barbiturates, or narcotics.

Antidiabetic Agents

Use of thiazide diuretics concomitantly with antidiabetic agents (oral agents and insulin) may require dosage adjustment of the antidiabetic agent. Moexipril has been used in clinical trials concomitantly with oral hypoglycemic agents and there was no evidence of any clinically important adverse interactions.

Cholestyramine and Colestipol Resins

Absorption of hydrochlorothiazide is impaired in the presence of anionic exchange resins. Single doses of either cholestyramine or colestipol resins bind the hydrochlorothiazide and reduce its absorption from the gastrointestinal tract by up to 85% and 43%, respectively.

Corticosteroids, ACTH

Use of thiazide diuretics concomitantly with corticosteroids or ACTH may intensify electrolyte depletion, particularly hypokalemia.

Pressor Amines: Thiazide diuretics may decrease arterial responsiveness to pressor amines (e.g. norepinephrine), but not enough to preclude effectiveness of the pressor agent for therapeutic use.

Skeletal Muscle Relaxants, Nondepolarizing

Thiazide diuretics may increase the responsiveness to tubocurarine.

Non-Steroidal Anti-Inflammatory Agents including Selective Cyclooxygenase-2 Inhibitors (COX-2 Inhibitors)

In patients who are elderly, volume-depleted (including those on diuretic therapy), or with compromised renal function, co-administration of NSAIDS, including selective COX-2 inhibitors, with ACE inhibitors, including moexipril, may result in deterioration of renal function, including possible acute renal failure. These effects are usually reversible. Monitor renal function periodically in patients receiving moexipril and NSAID therapy.

The antihypertensive effect of ACE inhibitors and hydrochlorothiazide, as well as the diuretic and natriuretic effects of hydrochlorothiazide, may be attenuated by NSAIDS.

Dual Blockade of the Renin-Angiotensin System (RAS)

Dual blockade of the RAS with angiotensin receptor blockers, ACE inhibitors, or aliskiren is associated with increased risks of hypotension, hyperkalemia, and changes in renal function (including acute renal failure) compared to monotherapy. Closely monitor blood pressure, renal function and electrolytes in patients on uniretic® and other agents that affect the RAS.

Do not co-administer aliskiren with uniretic® in patients with diabetes. Avoid use of aliskiren with uniretic® in patients with renal impairment (GFR < 60 mL/min).

Other Agents

No clinically important pharmacokinetic interactions occurred when moexipril was administered concomitantly with digoxin or cimetidine.

Moexipril has been used in clinical trials concomitantly with calcium-channel-blocking agents, diuretics, H2 blockers, digoxin, and cholesterol-lowering agents. There was no evidence of clinically important adverse interactions. In general, ACE inhibitors have less than additive effects with betaadrenergic blockers, presumably because both work by inhibiting the renin-angiotensin system.

Coadministration of propantheline or guanabenz increased the absorption of hydrochlorothiazide.

Read the Uniretic Drug Interactions Center for a complete guide to possible interactions

This monograph has been modified to include the generic and brand name in many instances.

Last reviewed on RxList: 9/24/2012

Side Effects

Uniretic - User Reviews

Uniretic User Reviews

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