Side Effects & Safety
Information on medication side effects, drug interactions, and what to discuss with your doctor.
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Pegasys Side Effects: What to Expect and When to Call Your Doctor
Pegasys (Peginterferon Alfa-2a) has common and serious side effects. Here's what patients should expect, manage, and when to call their doctor right away.
Tresiba Side Effects: What to Expect and When to Call Your Doctor
Tresiba (insulin degludec) is generally well-tolerated, but hypoglycemia and other side effects are possible. Here's what to watch for and when to get help.
Ongentys Side Effects: What to Expect and When to Call Your Doctor
Learn about Ongentys side effects, from common issues like dyskinesia to serious warnings. Know what to watch for and when to contact your doctor.
Tolvaptan Side Effects: What to Expect and When to Call Your Doctor
Learn about common and serious Tolvaptan side effects, including thirst, frequent urination, and liver injury risks. Know when to call your doctor.
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Sodium Polystyrene Sulfonate Drug Interactions: What to Avoid and What to Tell Your Doctor
Learn which medications, supplements, and foods interact with Sodium Polystyrene Sulfonate and how to avoid dangerous combinations. Updated for 2026.
Marinol Side Effects: What to Expect and When to Call Your Doctor
Learn about common and serious Marinol (Dronabinol) side effects, who's at higher risk, and when you should contact your doctor right away.
Mavyret Drug Interactions: What to Avoid and What to Tell Your Doctor
Mavyret interacts with over 230 medications. Know which drugs are absolutely off-limits with Mavyret, which require caution, and what to tell your doctor before starting treatment.
Seysara Drug Interactions: What to Avoid and What to Tell Your Doctor
Seysara (sarecycline) interacts with several common medications and supplements. Here's what to avoid, what to tell your doctor, and what to monitor carefully.
Verapamil Drug Interactions: What to Avoid and What to Tell Your Doctor
Verapamil has important drug interactions with beta-blockers, digoxin, statins, and grapefruit. Learn which combinations are dangerous and what to tell your prescriber.
Casodex Side Effects: What to Expect and When to Call Your Doctor
Learn about Casodex (Bicalutamide) side effects — from common ones like hot flashes to serious risks like liver injury. Know when to call your doctor.
Hydroquinone Side Effects: What to Expect and When to Call Your Doctor
Mild irritation with hydroquinone is common. Ochronosis is rare but serious. Know what's normal, what to watch for, and when to stop treatment.
Viloxazine Side Effects: What to Expect and When to Call Your Doctor
Learn about common and serious Viloxazine (Qelbree) side effects, what to watch for, and when you should contact your doctor right away.