Atenolol

DRUG INFORMATION

  ADULT
    - Hypertension The initial dose of atenolol tablets USP is 50 mg given as one tablet
      a day either alone or added to diuretic therapy.
      Source: US FDA label for atenolol (Atenolol), section 'dosage and administration',
      retrieved 2026-08-29
    - If an optimal response is not achieved, the dosage should be increased to atenolol
      tablets USP 100 mg given as one tablet a day.
      Source: US FDA label for atenolol (Atenolol), section 'dosage and administration',
      retrieved 2026-08-29
    - Increasing the dosage beyond 100 mg a day is unlikely to produce any further
      benefit.
      Source: US FDA label for atenolol (Atenolol), section 'dosage and administration',
      retrieved 2026-08-29

  CHILD
    - Safety and effectiveness in pediatric patients have not been established.
      Source: US FDA label for atenolol (Atenolol), section 'pediatric use', retrieved
      2026-08-29

  RENAL IMPAIRMENT
    - Elderly Patients or Patients With Renal Impairment Atenolol tablets USP are
      excreted by the kidneys; consequently dosage should be adjusted in cases of severe
      impairment of renal function.
      Source: US FDA label for atenolol (Atenolol), section 'dosage and administration',
      retrieved 2026-08-29
    - No significant accumulation of atenolol tablets USP occurs until creatinine
      clearance falls below 35 mL/min/1.73 m 2 .
      Source: US FDA label for atenolol (Atenolol), section 'dosage and administration',
      retrieved 2026-08-29
    - Accumulation of atenolol and prolongation of its half-life were studied in
      subjects with creatinine clearance between 5 and 105 mL/min.
      Source: US FDA label for atenolol (Atenolol), section 'dosage and administration',
      retrieved 2026-08-29

  HEPATIC IMPAIRMENT
    - No liver-impairment dose in this label. Not a statement that none is needed.
      Source: Read and found silent: the US FDA label for atenolol (Atenolol), retrieved
      2026-08-29

  PREGNANCY
    - Usage in Pregnancy Teratogenic Effects Pregnancy Category D See WARNINGS ,
      Pregnancy and Fetal Injury .
      Source: US FDA label for atenolol (Atenolol), section 'pregnancy', retrieved
      2026-08-29

  BREASTFEEDING   [ CAUTION ]
    The label allows it only when the benefit is judged to outweigh the risk. Read the
      quote below.
    - Atenolol is excreted in human breast milk at a ratio of 1.5 to 6.8 when compared
      to the concentration in plasma.
      Source: US FDA label for atenolol (Atenolol), section 'nursing mothers', retrieved
      2026-08-29
    - Caution should be exercised when atenolol is administered to a nursing woman.
      Source: US FDA label for atenolol (Atenolol), section 'nursing mothers', retrieved
      2026-08-29
    - Clinically significant bradycardia has been reported in breastfed infants.
      Source: US FDA label for atenolol (Atenolol), section 'nursing mothers', retrieved
      2026-08-29