Can you take Pyquvi with Relugolix?
1 drug interaction and 41 additional warnings found for the following 2 drugs:
- Pyquvi (deflazacort)
- relugolix
Drug interactions
Moderate drug interactions
Moderate:
deflazacort relugolix
Applies to: Pyquvi (deflazacort) and relugolix
Both deflazacort and relugolix can weaken bones during prolonged use, and combining these medications may increase the risk of osteoporosis and bone fractures. Talk to your doctor if you have any questions or concerns. Your doctor may already be aware of the risks but has determined that this is the best course of treatment for you and has taken appropriate precautions and is monitoring you closely for any potential complications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
Food/lifestyle interactions
Moderate food/lifestyle interactions
Moderate:
deflazacort Food/Lifestyle
Applies to: Pyquvi (deflazacort)
Do not take deflazacort with grapefruit juice. Grapefruit juice may increase the blood levels of the active component of deflazacort. This may increase the risk and/or severity of side effects such as swelling, weight gain, electrolyte abnormalities, high blood pressure, high blood glucose, muscle weakness, depression, mood swings, acne, thinning skin, stretch marks, easy bruising, bone density loss, cataracts, glaucoma, menstrual irregularities, excessive growth of facial or body hair, and abnormal distribution of body fat, especially in the face, neck, back, and waist. Other side effects that may occur include decreased ability to fight infections, increased risk of developing infections, and inadequate response to stress such as infection, surgery, trauma, or a severe asthma attack. Children may experience a reduced growth rate during chronic use. Talk to your doctor if you have any questions or concerns. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
Disease interactions
40 potential interactions Applies to: 38 conditions, including High Blood Pressure, Depression, Heart Failure, Osteoporosis, and Heart Attack.
Abnormal Glucose Tolerance
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Abnormal Glucose Tolerance.
Corticosteroids can raise blood glucose level by antagonizing the action and suppressing the secretion of insulin, which results in inhibition of peripheral glucose uptake and increased gluconeogenesis. Therapy with corticosteroids should be administered cautiously in patients with diabetes mellitus, glucose intolerance, or a predisposition to hyperglycemia. Patients with diabetes mellitus should be monitored more closely during corticosteroid therapy, and their antidiabetic regimen adjusted accordingly.
Adrenal Tumor
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Adrenal Tumor.
Corticosteroids mimic the effects of endogenous cortisol and aldosterone. Use of these agents may aggravate conditions of hyperadrenocorticalism in a dose-dependent manner.
Cataract
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Cataract.
Prolonged use of corticosteroids may cause posterior subcapsular cataracts and elevated intraocular pressure, the latter of which may lead to glaucoma and/or damage to the optic nerves. Long-term therapy with corticosteroids should be administered cautiously in patients with a history of cataracts, glaucoma, or increased intraocular pressure.
Depression
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Depression.
Corticosteroids may aggravate the symptoms of psychosis and emotional instability. Patients with these conditions should be monitored for increased or worsened symptoms during corticosteroid therapy.
Diabetes Mellitus
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Diabetes Mellitus.
Corticosteroids can raise blood glucose level by antagonizing the action and suppressing the secretion of insulin, which results in inhibition of peripheral glucose uptake and increased gluconeogenesis. Therapy with corticosteroids should be administered cautiously in patients with diabetes mellitus, glucose intolerance, or a predisposition to hyperglycemia. Patients with diabetes mellitus should be monitored more closely during corticosteroid therapy, and their antidiabetic regimen adjusted accordingly.
Diverticulitis
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Diverticulitis.
Corticosteroids may cause gastrointestinal perforation and hemorrhage, usually when given in high dosages or for prolonged periods. They may also mask symptoms of complications such as peritonitis or intraabdominal sepsis. Therapy with corticosteroids should be avoided or administered cautiously in patients with diverticulitis, nonspecific ulcerative colitis (if there is a probability of impending perforation, abscess, or other pyogenic infection), or recent intestinal anastomoses.
Electrolyte Abnormalities
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Electrolyte Abnormalities.
Corticosteroids can cause hypernatremia, hypokalemia, and fluid retention. These mineralocorticoid effects are most significant with fludrocortisone, followed by hydrocortisone and cortisone, then by prednisone and prednisolone. The remaining corticosteroids, betamethasone, dexamethasone, methylprednisolone, and triamcinolone, have little mineralocorticoid activities. However, large doses of any corticosteroid can demonstrate these effects, particularly if given for longer than brief periods. All corticosteroids also increase excretion of calcium and can cause hypocalcemia. Therapy with corticosteroids should be administered cautiously in patients with preexisting electrolyte disturbances. Caution is also advised when treating patients with seizure disorders, since electrolyte disturbances may trigger seizure activity.
Moderate:
relugolix
Relugolix has a moderate potential interaction with Electrolyte Abnormalities.
Androgen deprivation therapy may prolong the QT/QTc interval. Health care providers should consider if benefits of therapy outweigh the potential risks in patients with congenital long QT syndrome, congestive heart failure, electrolyte abnormalities, or taking other drugs that can also prolong the QT interval. Consider periodic monitoring of EKG and electrolytes.
Fluid Retention
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Fluid Retention.
Corticosteroids may cause hypernatremia, hypokalemia, fluid retention, and elevation in blood pressure. Large doses of any corticosteroid can demonstrate these effects, particularly if given for longer periods. Therapy with corticosteroids should be administered cautiously in patients with preexisting fluid retention, hypertension, congestive heart failure, and/or renal dysfunction. Dietary sodium restriction and potassium supplementation may be advisable.
Glaucoma/Intraocular Hypertension
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Glaucoma/Intraocular Hypertension.
Prolonged use of corticosteroids may cause posterior subcapsular cataracts and elevated intraocular pressure, the latter of which may lead to glaucoma and/or damage to the optic nerves. Long-term therapy with corticosteroids should be administered cautiously in patients with a history of cataracts, glaucoma, or increased intraocular pressure.
Heart Attack
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Heart Attack.
The use of corticosteroids may be associated with left ventricular free-wall rupture in patients who have had a recent myocardial infarction. Pharmacologic dosages of corticosteroids should be administered with great caution in such patients.
Heart Failure
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Heart Failure.
Corticosteroids may cause hypernatremia, hypokalemia, fluid retention, and elevation in blood pressure. Large doses of any corticosteroid can demonstrate these effects, particularly if given for longer periods. Therapy with corticosteroids should be administered cautiously in patients with preexisting fluid retention, hypertension, congestive heart failure, and/or renal dysfunction. Dietary sodium restriction and potassium supplementation may be advisable.
Moderate:
relugolix
Relugolix has a moderate potential interaction with Heart Failure.
Androgen deprivation therapy may prolong the QT/QTc interval. Health care providers should consider if benefits of therapy outweigh the potential risks in patients with congenital long QT syndrome, congestive heart failure, electrolyte abnormalities, or taking other drugs that can also prolong the QT interval. Consider periodic monitoring of EKG and electrolytes.
Herpetic Keratitis
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Herpetic Keratitis.
Pharmacologic dosages of corticosteroids should be used cautiously in patients with ocular herpes simplex because of the risk of corneal perforation. Corticosteroids are not recommended for patients with active ocular herpes simplex.
High Blood Pressure
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with High Blood Pressure.
Corticosteroids may cause hypernatremia, hypokalemia, fluid retention, and elevation in blood pressure. Large doses of any corticosteroid can demonstrate these effects, particularly if given for longer periods. Therapy with corticosteroids should be administered cautiously in patients with preexisting fluid retention, hypertension, congestive heart failure, and/or renal dysfunction. Dietary sodium restriction and potassium supplementation may be advisable.
History, Peptic Ulcer
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with History, Peptic Ulcer.
Corticosteroids may cause peptic ulcer disease and gastrointestinal (GI) hemorrhage, usually when given in high dosages or for prolonged periods. However, even conventional dosages may aggravate symptoms in patients with a history of peptic ulcers. Delayed healing of ulcers has also been reported. Therapy with corticosteroids should be avoided or administered cautiously in patients with active or latent peptic ulcers or other risk factors for GI bleeding. Some clinicians recommend the use of prophylactic antacids or H2-antagonists between meals when large doses of corticosteroids are necessary.
History, Thrombotic/Thromboembolic Disorder
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with History, Thrombotic/Thromboembolic Disorder.
Corticosteroids may increase blood coagulability and have rarely been associated with the development of intravascular thrombosis, thromboembolism, and thrombophlebitis. Therapy with corticosteroids should be administered cautiously in patients who have or may be predisposed to thrombotic or thromboembolic disorders.
History, Tuberculosis
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with History, Tuberculosis.
In patients with latent tuberculosis or tuberculin reactivity, the use of pharmacologic dosages of corticosteroids may cause a reactivation of the disease. Close monitoring for signs and symptoms of tuberculosis is recommended if corticosteroid therapy is administered to patients with a history of tuberculosis or tuberculin reactivity. During prolonged corticosteroid therapy, tuberculosis chemoprophylaxis may be considered.
Hyperadrenocorticism
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Hyperadrenocorticism.
Corticosteroids mimic the effects of endogenous cortisol and aldosterone. Use of these agents may aggravate conditions of hyperadrenocorticalism in a dose-dependent manner.
Hyperaldosteronism
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Hyperaldosteronism.
Corticosteroids mimic the effects of endogenous cortisol and aldosterone. Use of these agents may aggravate conditions of hyperadrenocorticalism in a dose-dependent manner.
Hypernatremia
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Hypernatremia.
Corticosteroids can cause hypernatremia, hypokalemia, and fluid retention. These mineralocorticoid effects are most significant with fludrocortisone, followed by hydrocortisone and cortisone, then by prednisone and prednisolone. The remaining corticosteroids, betamethasone, dexamethasone, methylprednisolone, and triamcinolone, have little mineralocorticoid activities. However, large doses of any corticosteroid can demonstrate these effects, particularly if given for longer than brief periods. All corticosteroids also increase excretion of calcium and can cause hypocalcemia. Therapy with corticosteroids should be administered cautiously in patients with preexisting electrolyte disturbances. Caution is also advised when treating patients with seizure disorders, since electrolyte disturbances may trigger seizure activity.
Hyperthyroidism
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Hyperthyroidism.
Corticosteroids may have enhanced effects in hypothyroidism due to decreased metabolism of these agents. Patients with hypothyroidism should be monitored more closely for excessive cortisol effects. Dosage adjustments may be required secondary to changes in their thyroid condition.
Hypocalcemia
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Hypocalcemia.
Corticosteroids can cause hypernatremia, hypokalemia, and fluid retention. These mineralocorticoid effects are most significant with fludrocortisone, followed by hydrocortisone and cortisone, then by prednisone and prednisolone. The remaining corticosteroids, betamethasone, dexamethasone, methylprednisolone, and triamcinolone, have little mineralocorticoid activities. However, large doses of any corticosteroid can demonstrate these effects, particularly if given for longer than brief periods. All corticosteroids also increase excretion of calcium and can cause hypocalcemia. Therapy with corticosteroids should be administered cautiously in patients with preexisting electrolyte disturbances. Caution is also advised when treating patients with seizure disorders, since electrolyte disturbances may trigger seizure activity.
Hypokalemia
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Hypokalemia.
Corticosteroids can cause hypernatremia, hypokalemia, and fluid retention. These mineralocorticoid effects are most significant with fludrocortisone, followed by hydrocortisone and cortisone, then by prednisone and prednisolone. The remaining corticosteroids, betamethasone, dexamethasone, methylprednisolone, and triamcinolone, have little mineralocorticoid activities. However, large doses of any corticosteroid can demonstrate these effects, particularly if given for longer than brief periods. All corticosteroids also increase excretion of calcium and can cause hypocalcemia. Therapy with corticosteroids should be administered cautiously in patients with preexisting electrolyte disturbances. Caution is also advised when treating patients with seizure disorders, since electrolyte disturbances may trigger seizure activity.
Infection
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Infection.
Corticosteroids (including deflazacort) suppress the immune system and increase the risk of infection with any pathogen (including viral, bacterial, fungal, protozoan, or helminthic). Corticosteroids mask some signs of infection, decrease resistance to new infections, exacerbate existing infections, and increase the risk of disseminated infections; these infections can be severe and sometimes fatal. The degree to which the dose, route, and duration of corticosteroid therapy correlates with the specific risks of infection is not well described; however, the rate of occurrence of infectious complications increases with increasing corticosteroid doses. Patients should be monitored for infection and dose reduction or discontinuation of corticosteroids should be considered as needed.
Intestinal Anastomoses
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Intestinal Anastomoses.
Corticosteroids may cause gastrointestinal perforation and hemorrhage, usually when given in high dosages or for prolonged periods. They may also mask symptoms of complications such as peritonitis or intraabdominal sepsis. Therapy with corticosteroids should be avoided or administered cautiously in patients with diverticulitis, nonspecific ulcerative colitis (if there is a probability of impending perforation, abscess, or other pyogenic infection), or recent intestinal anastomoses.
Liver Disease
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Liver Disease.
No dose adjustment of deflazacort is required for patients with mild or moderate liver dysfunction. Care is recommended when using deflazacort in patients with severe liver dysfunction; a dosing recommendation cannot be provided as there is no clinical experience in these patients.
Long QT Syndrome
Moderate:
relugolix
Relugolix has a moderate potential interaction with Long QT Syndrome.
Androgen deprivation therapy may prolong the QT/QTc interval. Health care providers should consider if benefits of therapy outweigh the potential risks in patients with congenital long QT syndrome, congestive heart failure, electrolyte abnormalities, or taking other drugs that can also prolong the QT interval. Consider periodic monitoring of EKG and electrolytes.
Myoneural Disorder
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Myoneural Disorder.
Toxic myopathy has been observed with the chronic use or the administration of large doses of corticosteroids, often in patients with disorders of neuromuscular transmission such as myasthenia gravis or in patients receiving neuromuscular blocking agents. Fluorinated corticosteroids such as betamethasone, dexamethasone, and triamcinolone appear to cause more severe muscle atrophy and weakness than the nonfluorinated agents. Moreover, multiple-daily doses are more toxic than once-daily or, preferably, alternate-day morning doses. Steroid myopathy is generalized and sometimes accompanied by respiratory weakness and dyspnea. In some cases, it has resulted in quadriparesis. Elevations of creatine kinase (CK) may also occur, albeit infrequently. After withdrawal of corticosteroid therapy, recovery may be slow and incomplete. Therapy with corticosteroids should be administered cautiously in patients with preexisting myopathy or myoneural disorders since these conditions may confound the diagnosis of steroid-induced myopathy. The presence of a normal serum CK level, minimal/no changes of myopathy on electromyography, and type 2 muscle fiber atrophy on biopsy are helpful in suggesting steroid-induced weakness. If steroid myopathy is suspected, a dosage reduction or discontinuation of the steroid should be considered.
Myopathy
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Myopathy.
Toxic myopathy has been observed with the chronic use or the administration of large doses of corticosteroids, often in patients with disorders of neuromuscular transmission such as myasthenia gravis or in patients receiving neuromuscular blocking agents. Fluorinated corticosteroids such as betamethasone, dexamethasone, and triamcinolone appear to cause more severe muscle atrophy and weakness than the nonfluorinated agents. Moreover, multiple-daily doses are more toxic than once-daily or, preferably, alternate-day morning doses. Steroid myopathy is generalized and sometimes accompanied by respiratory weakness and dyspnea. In some cases, it has resulted in quadriparesis. Elevations of creatine kinase (CK) may also occur, albeit infrequently. After withdrawal of corticosteroid therapy, recovery may be slow and incomplete. Therapy with corticosteroids should be administered cautiously in patients with preexisting myopathy or myoneural disorders since these conditions may confound the diagnosis of steroid-induced myopathy. The presence of a normal serum CK level, minimal/no changes of myopathy on electromyography, and type 2 muscle fiber atrophy on biopsy are helpful in suggesting steroid-induced weakness. If steroid myopathy is suspected, a dosage reduction or discontinuation of the steroid should be considered.
Osteoporosis
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Osteoporosis.
Corticosteroids reduce osteoblastic function and inhibit the absorption of intestinal calcium, which can result in bone resorption and bone loss during prolonged therapy. In addition, bone matrix may be affected by the protein-catabolic effects of corticosteroids, especially when given in high dosages or for prolonged periods, leading to aseptic necrosis and fractures. Long-term or high-dose corticosteroid therapy should be administered cautiously and only if necessary in patients with or at risk for osteoporosis. Adverse skeletal effects may be minimized by alternate-day or intermittent administration. Any patient receiving prolonged therapy with the equivalent of 7.5 mg prednisone/day or more are at risk for glucocorticoid-induced osteoporosis and should be managed according to The American College of Rheumatology (ACR) guidelines.
Peptic Ulcer
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Peptic Ulcer.
Corticosteroids may cause peptic ulcer disease and gastrointestinal (GI) hemorrhage, usually when given in high dosages or for prolonged periods. However, even conventional dosages may aggravate symptoms in patients with a history of peptic ulcers. Delayed healing of ulcers has also been reported. Therapy with corticosteroids should be avoided or administered cautiously in patients with active or latent peptic ulcers or other risk factors for GI bleeding. Some clinicians recommend the use of prophylactic antacids or H2-antagonists between meals when large doses of corticosteroids are necessary.
Post MI Syndrome
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Post MI Syndrome.
The use of corticosteroids may be associated with left ventricular free-wall rupture in patients who have had a recent myocardial infarction. Pharmacologic dosages of corticosteroids should be administered with great caution in such patients.
Psychosis
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Psychosis.
Corticosteroids may aggravate the symptoms of psychosis and emotional instability. Patients with these conditions should be monitored for increased or worsened symptoms during corticosteroid therapy.
Renal Dysfunction
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Renal Dysfunction.
Corticosteroids may cause hypernatremia, hypokalemia, fluid retention, and elevation in blood pressure. Large doses of any corticosteroid can demonstrate these effects, particularly if given for longer periods. Therapy with corticosteroids should be administered cautiously in patients with preexisting fluid retention, hypertension, congestive heart failure, and/or renal dysfunction. Dietary sodium restriction and potassium supplementation may be advisable.
Seizures
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Seizures.
Corticosteroids can cause hypernatremia, hypokalemia, and fluid retention. These mineralocorticoid effects are most significant with fludrocortisone, followed by hydrocortisone and cortisone, then by prednisone and prednisolone. The remaining corticosteroids, betamethasone, dexamethasone, methylprednisolone, and triamcinolone, have little mineralocorticoid activities. However, large doses of any corticosteroid can demonstrate these effects, particularly if given for longer than brief periods. All corticosteroids also increase excretion of calcium and can cause hypocalcemia. Therapy with corticosteroids should be administered cautiously in patients with preexisting electrolyte disturbances. Caution is also advised when treating patients with seizure disorders, since electrolyte disturbances may trigger seizure activity.
Strongyloidiasis
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Strongyloidiasis.
Unlike most helminths, Strongyloides stercoralis has the ability to replicate in the human host. In patients with strongyloidiasis, the use of pharmacologic or immunosuppressive dosages of corticosteroids may result in Strongyloides hyperinfection and dissemination with widespread larval migration, often accompanied by severe enterocolitis and potentially fatal gram-negative septicemia. Therapy with corticosteroids should be administered with extreme caution, if at all, in these patients. For patients on corticosteroids who develop known or suspected Strongyloides infestation, withdrawal of corticosteroids or reduction of the dose of corticosteroids is recommended.
Thrombotic/Thromboembolic Disorder
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Thrombotic/Thromboembolic Disorder.
Corticosteroids may increase blood coagulability and have rarely been associated with the development of intravascular thrombosis, thromboembolism, and thrombophlebitis. Therapy with corticosteroids should be administered cautiously in patients who have or may be predisposed to thrombotic or thromboembolic disorders.
Tuberculosis, Latent
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Tuberculosis, Latent.
In patients with latent tuberculosis or tuberculin reactivity, the use of pharmacologic dosages of corticosteroids may cause a reactivation of the disease. Close monitoring for signs and symptoms of tuberculosis is recommended if corticosteroid therapy is administered to patients with a history of tuberculosis or tuberculin reactivity. During prolonged corticosteroid therapy, tuberculosis chemoprophylaxis may be considered.
Ulcerative Colitis
Moderate:
Pyquvi
The deflazacort in Pyquvi has a moderate potential interaction with Ulcerative Colitis.
Corticosteroids may cause gastrointestinal perforation and hemorrhage, usually when given in high dosages or for prolonged periods. They may also mask symptoms of complications such as peritonitis or intraabdominal sepsis. Therapy with corticosteroids should be avoided or administered cautiously in patients with diverticulitis, nonspecific ulcerative colitis (if there is a probability of impending perforation, abscess, or other pyogenic infection), or recent intestinal anastomoses.
More resources
Pyquvi
A total of 622 drugs are known to interact with Pyquvi.
- Pyquvi is in the drug class glucocorticoids.
- Pyquvi is used to treat Duchenne Muscular Dystrophy.
relugolix
A total of 453 drugs are known to interact with relugolix.
- Relugolix is in the drug class gonadotropin-releasing hormone antagonists.
- Relugolix is used to treat Prostate Cancer.
Drug Interaction Classification
| Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
| Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
| Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. | |
| No interaction information available. |
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.