Altoprev Side Effects

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

A very small number of people taking lovastatin may have mild memory problems or confusion. If these rare effects occur, talk to your doctor.

Rarely, statins may cause or worsen diabetes. Talk to your doctor about the benefits and risks.

This drug may rarely cause muscle problems (which can rarely lead to very serious conditions called rhabdomyolysis and autoimmune myopathy). Tell your doctor right away if you develop any of these symptoms during treatment and if these symptoms persist after your doctor stops this drug: muscle pain/tenderness/weakness (especially with fever or unusual tiredness), signs of kidney problems (such as change in the amount of urine).

This medication may rarely cause liver problems. If you notice any of the following rare but serious side effects, tell your doctor right away: yellowing eyes/skin, dark urine, severe stomach/abdominal pain, persistent nausea/vomiting.

A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
  • infection
  • diabetes mellitus
  • hemolytic anemia
  • anemia
  • purpura
  • thrombocytopenic disorder
  • eosinophilia
  • acute confusion
  • libido changes
  • depression
  • peripheral neuropathy
  • myopathy
  • cataracts
  • blurred vision
  • atrial fibrillation
  • vasculitis
  • upper respiratory infection
  • rhinitis
  • sinusitis
  • bronchitis
  • xerostomia
  • gastritis
  • dyspepsia
  • constipation
  • hepatic necrosis
  • hepatic failure
  • hepatitis
  • obstructive hyperbilirubinemia
  • urinary tract infection
  • erectile dysfunction
  • gynecomastia
  • skin photosensitivity
  • eczema
  • bullous dermatitis
  • erythema multiforme
  • toxic epidermal necrolysis
  • Stevens-Johnson syndrome
  • pruritus of skin
  • alopecia
  • dry skin
  • urticaria
  • dyschromia
  • lupus-like syndrome
  • dermatomyositis
  • arthritis
  • arthralgia
  • back pain
  • polymyalgia rheumatica
  • muscle spasm
  • rhabdomyolysis
  • muscle weakness
  • myalgia
  • myositis
  • cramps
  • memory impairment
  • vertigo
  • dizziness
  • insomnia
  • fever
  • fatigue
  • flu-like symptoms
  • tremor
  • dysgeusia
  • hypesthesia
  • skin rash
  • skin nodules
  • edema
  • flushing
  • anorexia
  • headache disorder
  • palpitations
  • dyspnea
  • cough
  • chest pain
  • nausea
  • vomiting
  • heartburn
  • flatulence
  • diarrhea
  • dysuria
  • increased urinary frequency
  • nocturia
  • hyperglycemia
  • abnormal hepatic function tests
  • anaphylaxis
  • angioedema
  • paresthesia
  • dysesthesia
  • general weakness
  • malaise
  • acute abdominal pain
  • polymyositis
  • jaundice
  • interstitial lung disease
  • pancreatitis
  • ophthalmoplegia
  • facial palsy
  • immune-mediated necrotizing myopathy
  • symptoms of anxiety

Drug Interactions

See also How to Use section.

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

Some products that may interact with this drug include: "blood thinners" (such as warfarin), daptomycin, gemfibrozil.

Other medications can affect the removal of lovastatin from your body, which may affect how lovastatin works. Examples include certain azole antifungals (such as itraconazole, ketoconazole, posaconazole, voriconazole), cobicistat, colchicine, cyclosporine, delavirdine, macrolide antibiotics (such as clarithromycin, erythromycin), nefazodone, HIV protease inhibitors (such as lopinavir, ritonavir), hepatitis C virus protease inhibitors (such as boceprevir, telaprevir), telithromycin, among others.

Do not take any red yeast rice products while you are taking lovastatin since those products may also contain lovastatin. Taking lovastatin and red yeast rice products together can increase your risk of serious muscle and liver problems.