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Lotensin HCT Side Effects

Generic Name: benazepril / hydrochlorothiazide

Note: This page contains information about the side effects of benazepril / hydrochlorothiazide. Some of the dosage forms included on this document may not apply to the brand name Lotensin HCT.

For the Consumer

Applies to benazepril / hydrochlorothiazide: oral tablet

In addition to its needed effects, some unwanted effects may be caused by benazepril / hydrochlorothiazide. In the event that any of these side effects do occur, they may require medical attention.

Major Side Effects

You should check with your doctor immediately if any of these side effects occur when taking benazepril / hydrochlorothiazide:

Less common:
  • Blurred vision
  • confusion
  • decreased urination
  • dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
  • dry mouth
  • fast, slow, or irregular heartbeat
  • muscle cramps or pain
  • numbness, tingling, pain, or weakness in the hands or feet
  • rapid breathing
  • seizures
  • sunken eyes
  • sweating
  • thirst
  • trembling
  • unusual tiredness or weakness
  • weakness and heaviness of the legs
  • wrinkled skin

Minor Side Effects

Some of the side effects that can occur with benazepril / hydrochlorothiazide may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:

Less common:
  • Cough
  • decreased interest in sexual intercourse
  • excessive muscle tone
  • feeling of constant movement of self or surroundings
  • inability to have or keep an erection
  • loss in sexual ability, desire, drive, or performance
  • muscle stiffness
  • muscle tension or tightness
  • nausea
  • sensation of spinning
  • sleepiness or unusual drowsiness

For Healthcare Professionals

Applies to benazepril / hydrochlorothiazide: oral tablet


The most common side effects were dizziness, fatigue, headache, and cough.[Ref]

Nervous system

Common (1% to 10%): Dizziness, postural dizziness, headache, hypertonia, somnolence
Uncommon (0.1% to 1%): Paresthesia, taste perversion, tinnitus, syncope, hypesthesia

Postmarketing reports: Lightheadedness, headache, paresthesia[Ref]


Common (1% to 10%): Cough, upper respiratory infection, rhinitis, sinusitis
Uncommon (0.1% to 1%): Epistaxis, bronchitis, voice alteration

Postmarketing reports: Eosinophilic pneumonitis

Postmarketing reports: Respiratory distress, pneumonitis, pulmonary edema[Ref]


Common (1% to 10%): Fatigue, vertigo, flu syndrome
Uncommon (0.1% to 1%): Asthenia, chest pain, fever, chills

Postmarketing reports: Vertigo, weakness, pyrexia, asthenia[Ref]


Common (1% to 10%): Impotence, urinary frequency
Uncommon (0.1% to 1%): Urinary tract infection[Ref]


Common (1% to 10%): Nausea
Uncommon (0.1% to 1%): Vomiting, diarrhea, dyspepsia, constipation, dry mouth, abdominal pain, gastroenteritis, flatulence, tooth disorder

Postmarketing reports: Pancreatitis, small bowel angioedema, sialadenitis, vomiting, diarrhea, cramping, nausea, gastric irritation, constipation[Ref]


Common (1% to 10%): Back pain
Uncommon (0.1% to 1%): Arthralgia, myalgia, neck pain, arthritis

Postmarketing reports: Muscle spasm[Ref]


Uncommon (0.1% to 1%): Rash, sweating, photosensitivity, pruritus, alopecia

Postmarketing reports: Stevens-Johnson syndrome, pemphigus

Postmarketing reports: Purpura, urticaria, rash, photosensitivity, erythema multiforme, Stevens-Johnson syndrome, exfoliative dermatitis, toxic epidermal necrolysis[Ref]


Uncommon (0.1% to 1%): Insomnia, nervousness, libido decreased, abnormal dreams

Postmarketing reports: Restlessness[Ref]


Uncommon (0.1% to 1%): Palpitations, flushing, peripheral vascular disorder, tachycardia

Postmarketing reports: Necrotizing angiitis[Ref]


Uncommon (0.1% to 1%): Abnormal vision, retinal disorder, conjunctivitis

Postmarketing reports: Transient blurred vision, xanthopsia[Ref]


Uncommon (0.1% to 1%): Anorexia

Postmarketing reports: Anorexia, hyperglycemia, glycosuria, hyperuricemia[Ref]


Uncommon (0.1% to 1%): Infection

Postmarketing reports: Anaphylactoid reactions[Ref]


Frequency not reported: Serum creatinine increased, BUN increased[Ref]


Postmarketing reports: Hemolytic anemia, thrombocytopenia

Postmarketing reports: Aplastic anemia, agranulocytosis, leukopenia, neutropenia, thrombocytopenia[Ref]


Postmarketing reports: Pancreatitis

Postmarketing reports: Intrahepatic cholestatic jaundice[Ref]


Postmarketing reports: Parathyroid gland changes with hypercalcemia and hypophosphatemia[Ref]


1. "Product Information. Lotensin HCT (benazepril-hydrochlorothiazide)." Ciba Pharmaceuticals, Summit, NJ.

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

Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. This information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate safety, effectiveness, or appropriateness for any given patient. does not assume any responsibility for any aspect of healthcare administered with the aid of materials provided. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the substances you are taking, check with your doctor, nurse, or pharmacist.