Verelan PM


Verelan PM Side Effects

Dizziness, slow heartbeat, constipation, stomach upset, nausea, headache, or tiredness may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.

To lower your risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.

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.

Tell your doctor right away if you have any serious side effects, including: severe dizziness, fainting, new or worsening symptoms of heart failure (such as shortness of breath, swelling ankles/feet, unusual tiredness, unusual/sudden weight gain), very slow heartbeat.

This drug may rarely cause serious (possibly fatal) liver disease. Get medical help right away if you have any symptoms of liver damage, such as: nausea/vomiting that doesn't stop, loss of appetite, stomach/abdominal pain, yellowing eyes/skin, dark urine.

A very serious allergic reaction to this drug is rare. However, get medical help right away 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
  • hyperprolactinemia
  • purpura
  • drug-induced psychosis
  • acute confusion
  • extrapyramidal disease
  • blurred vision
  • tinnitus
  • acute myocardial infarction
  • atrioventricular block
  • abnormal ECG
  • bradycardia
  • chronic heart failure
  • cerebrovascular accident
  • hypotension
  • severe hypotension
  • ecchymosis
  • pharyngitis
  • rhinitis
  • sinusitis
  • pulmonary edema
  • gingival hyperplasia
  • dyspepsia
  • constipation
  • hepatocellular damage
  • erectile dysfunction
  • gynecomastia
  • galactorrhea not associated with childbirth
  • menstrual disorder
  • allergic dermatitis
  • erythema multiforme
  • Stevens-Johnson syndrome
  • alopecia
  • arthralgia
  • cramps
  • drowsy
  • dizziness
  • insomnia
  • fatigue
  • flu-like symptoms
  • tremor
  • skin rash
  • edema
  • peripheral edema
  • hyperbilirubinemia
  • flushing
  • headache disorder
  • palpitations
  • dyspnea
  • nausea
  • diarrhea
  • increased urinary frequency
  • abnormal hepatic function tests
  • paresthesia
  • general weakness
  • increased alanine transaminase
  • increased aspartate transaminase

Drug Interactions

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: aliskiren, clonidine, disopyramide, dofetilide, dolasetron, fingolimod, lithium.

Other medications can affect the removal of verapamil from your body, which may affect how verapamil works. Examples include erythromycin, rifamycins (such as rifampin), ritonavir, St. John's wort, among others.

Verapamil can slow down the removal of other medications from your body, which may affect how they work. Examples of affected drugs include asunaprevir, colchicine, flibanserin, ivabradine, lomitapide, midazolam, triazolam, among others.

Some products have ingredients that could raise your heart rate or blood pressure. Tell your pharmacist what products you are using, and ask how to use them safely (especially cough-and-cold products, diet aids, or NSAIDs such as ibuprofen/naproxen).