Aliskiren + Amlodipine
Indications
Hypertension
Adult Dose
Hypertension
May switch to aliskiren/amlodipine if patient inadequately controlled with aliskiren alone or amlodipine alone (or another dihydropyridine calcium channel blocker); may use as replacement therapy for patients currently maintained on aliskiren and amlodipine
Initial: 150 mg/5 mg PO qDay
If blood pressure remains uncontrolled after 2-4 weeks, may titrate upward as needed, not to exceed 300 mg/10 mg daily
Renal Dose
Renal Impairment
<30 mL/min: Dose adjustment not necessary; use caution (monitor for hyperkalemia or renal dysfunction)
>30 mL/min: Dose adjustment not necessary
Elderly Dose
In the short-term controlled clinical trials, 17% of patients treated were >65 yr; no overall differences in safety or effectiveness were observed between these subjects and younger subjects
Aliskiren AUC and Cmax increased by 57% and 28% respectively; no significant effect on clinical efficacy or safety
Amlodipine AUC increased by 40-60% in elderly patients > 65 years and older; consider starting with the lowest available dose of amlodipine (5 mg)
Hepatic Dose
Hepatic Impairment
Use caution; consider lower initial dose; titrate slowly
Administration
High fat meals decrease bioavailability substantially
Contra Indications
Hypersensitivity
Pregnancy (2nd and 3rd trimesters; significant risk of fetal and neonatal morbidity/mortality; see Black Box Warnings)
Concomitant use with ACEIs or ARBs in patients with diabetes mellitus
Precautions
Avoid concomitant use with ARBs or ACEI in patients with renal impairment (GFR<60 mL/min)
Anaphylactic Reactions and Head and Neck Angioedema: Discontinue Aliskiren + Amlodipine and monitor until signs and symptoms resolve.
Hypotension in volume- and/or salt-depleted patients or with the combined use of other agents acting on RAAS: Correct imbalances before initiating therapy with Aliskiren + Amlodipine.
Increased angina or myocardial infarction with calcium channel blockers may occur upon dosage initiation or increase.
Impaired renal function: Monitor serum creatinine periodically.
Hyperkalemia: Monitor potassium levels periodically.
Monitoring Parameters
Monitor serum creatinine periodically.
Monitor potassium levels periodically.
Pregnancy-Lactation
Not Classi
Pregnancy
Hypertension in pregnancy increases maternal risk for pre-eclampsia, gestational diabetes, premature delivery, and delivery complications (e.g., need for cesarean section, and post-partum hemorrhage); hypertension increases fetal risk for intrauterine growth restriction and intrauterine death; pregnant women with hypertension should be carefully monitored and managed accordingly
Use of drugs that act on renin-angiotensin system in second and third trimesters of pregnancy can result in reduced fetal renal function leading to anuria and renal failure, oligohydramnios, fetal lung hypoplasia and skeletal deformations, including skull hypoplasia, hypotension, and death
In patients taking the combination drug during pregnancy, perform serial ultrasound examinations to assess intra-amniotic environment; fetal testing may be appropriate, based on the week of gestation; patients and physicians should be aware, however, that oligohydramnios may not appear until after the fetus has sustained irreversible injury; closely observe infants with histories of in utero exposure to the drug combination for hypotension, oliguria, and hyperkalemia; if oliguria or hypotension occur in neonates with a history of in utero exposure to the drug combination, support blood pressure and renal perfusion; exchange transfusions or dialysis may be required as a means of reversing hypotension and substituting for disordered renal function
Lactation
There is no information regarding the presence in human milk, the effects on the breastfed infant, or the effects on milk production; limited published studies report that amlodipine is present in human milk; however, there is insufficient information to determine effects of amlodipine on the breastfed infant; there is no available information on effects of amlodipine on milk production; because of potential for serious adverse reactions, including hypotension, hyperkalemia and renal impairment in nursing infants, advise a nursing woman that breastfeeding is not recommended during treatment
Interactions
Cyclosporine: Avoid concomitant use
Itraconazole: Avoid concomitant use
NSAIDs use may lead to an increased risk of renal impairment and loss of antihypertensive effect
If simvastatin is co-administered with amlodipine, do not exceed doses greater than 20 mg daily of simvastatin
Contraindicated (6)
azilsartan
benazepril
candesartan
captopril
dantrolene
enalapril
Serious - Use Alternative (24)
apalutamide
azilsartan
captopril
chloramphenicol
chloroquine
conivaptan
cyclosporine
diltiazem
enzalutamide
erdafitinib
fexinidazole
idelalisib
itraconazole
ivosidenib
lasmiditan
lofexidine
lonafarnib
nifedipine
nirmatrelvir/ritonavir
potassium phosphates, IV
simvastatin
sotorasib
tepotinib
voxelotor
Adverse Effects
Adverse reactions reported with combination product and individual agents
>10%
Amlodipine
Peripheral edema (2-15%)
1-10%
Peripheral edema (6.2-8.9%)
Aliskiren
Diarrhea (2.3%)
Cough (1.1%)
Increased creatinine kinase (1%)
Increased BUN (≤ 7%)
Hyperkalemia (≤1%)
Rash (1%)
Amlodipine
Flushing (1-5%)
Palpitation (1-5%)
Dizziness (1-3%)
Fatigue (5%)
Somnolence (1-2%)
Rash (1-2%)
Pruritus (1-2%)
Male sexual dysfunction (1-2%)
Nausea (3%)
Dyspepsia (1-2%)
Abdominal pain (1-2%)
Muscle cramps (1-2%)
Dyspnea (1-2%)
Weakness (1-2%)
<1%
Angioedema
Increased BUN
Increased creatinine
Hyperkalemia
Hypotension
Aliskiren
Gastroesophageal reflux
Periorbital edema
Toxic epiderma necrolysis
Increased uric acid
Severe hypotension
Stevens Johnson syndrome
Amlodipine
Abnormal vision
Arthralgia
Chest pain
Abnormal dreams
Increased apetite
Acute interstitial nephritis
Alopecia
Conjunctivitis
Cough
Depression
Dysphagia
Flatulence
Mechanism of Action
Aliskiren: Renin inhibitor; blocks effect of increased renin levels, thereby decreasing feedback loop and reducing plasma renin activity, angiotensin I, and angiotensin II
Amlodipine: Calcium channel blocker; inhibits extracellular Ca ions across the membranes of myocardial cells and vascular smooth muscle cells, resulting in inhibition of cardiac and vascular smooth muscle contraction; this action causes dilation of the main coronary and systemic arteries