Learn about prescription drug interactions, side effects, dosages, and safety information for children, seniors, and pregnant women. Prescription drug information about our most frequently used medications. Look for interlinks between pages in the 'Interactions' section of each prescription fact sheet, to better help you research potential interactions with other drug treatments. Where possible, we have included information on interactions with herbal medications and supplements.

Some of the prescription drugs described below vary in availability, and may not all be carried consistently by the US pharmacies in the prescription service listings. We have included information regarding some of these medications as a courtesy to members who have requested that we inform them about their side effects and whether or not they interact with medication they currently take.

Accupril (Quinapril) - ACE inhibitor, treats high blood pressure, reduces risk of death from heart attack or stroke.

Adipex | Phentermine (Fastin) - Appetite suppressant prescribed for serious weight problems.

Aldactone (spironolactone) - Potassium-sparing diuretic.

Allegra (Fexofenadine) - Antihistamine treatment for hay fever and hives.

Altace (Ramipril) - ACE inhibitor, treats high blood pressure, reduces risk of death from heart attack or stroke.

Ambien (Zolpidem) - Sleeping pill for short term or chronic insomnia.

Amerge (Naratriptan) - Migraine treatment.

Amiloretic (Amiloride, Hydrochlorothiazide) - Combination diuretic for high blood pressure.

Amiloride - Potassium-sparing diuretic.

Arthrotec (Diclofenac, Misoprostol) - Anti-inflammatory treatment for arthritis for individuals at risk of stomach ulcer from NSAIDs alone.

Ativan (Lorazepam) - Benzodiazepine prescribed for anxiety, insomnia, and alcohol withdrawal.

Aventyl (Nortriptyline) - Tricyclic antidepressant.

Buspar (Buspirone) - Mild anti-anxiety medication.

Bromazepam - Benzodiazepine used to treat anxiety and insomnia. (Foreign only)

Calan (Verapamil) - Calcium Channel Blocker treating angina, arrhythmia, cluster headaches, and high blood pressure.

Capoten (Captopril) - ACE inhibitor used for high blood pressure, congestive heart failure.

Cardene (Nicardipine) - Calcium Channel Blocker treating angina, migraine, and high blood pressure.

Cardizem (Diltiazem) - Calcium Channel Blocker treating angina, migraine, and high blood pressure.

Cardura (Doxazosin) - High blood pressure and prostate enlargement treatment.

Celebrex (Celecoxib) - Cox II inhibitor prescribed for arthritis pain and the reduction of polyps.

Celexa (Citalopram) - Antidepressant, also prescribed for obsessive-compulsive disorder.

Cerebyx (Fosphenytoin) - Antiseizure medication, brain surgery adjunct.

Clinoril (Sulindac) - Prescription NSAID used to treat chronic inflammatory joint pain.

Coumadin (Warfarin) - Anti-clotting medication, blood thinner.

Cozaar (Losartan) - High blood pressure treatment.

Darvocet (Propoxyphene, Acetaminophen) - Narcotic analgesic for mild to moderate pain.

Demerol (Meperidine) - Narcotic analgesic for moderate to severe pain.

Depakene (Valproic Acid) - Anticonvulsant used for several types of epilepsy.

Didrex (Benzphetamine) - Weight loss treatment for severe weight problems.

Diflucan (Fluconazole) - Antifungal medication for systemic or vaginal yeast infections.

Dilantin (Phenytoin) - Antiseizure medication for epilepsy.

Diovan (Valsartan) - High blood pressure treatment.

Effexor (Venlafaxine) - Depression and anxiety prescription.

Elavil (Amitriptyline) - Depression medication, also prescribed to reduce chronic pain.

Emergency Contraception - Oral contraceptive treatment that can prevent pregnancy up to 72 hours after unprotected sex.

Fioricet (Acetaminophen, Butalbital, Caffeine) - Non-narcotic pain medication and relaxant used for migraine.

Fiorinal (Aspirin, Butalbital, Caffeine) - Non-narcotic pain medication and relaxant used for migraine.

Flexeril (Cyclobenzaprine) - Skeletal muscle relaxant used to treat sprains, muscle injuries, and fibromyalgia.

Fosamax (alendronate) - Increases bone density, treats osteoporosis and Paget's disease.

Halcion (Triazolam) - Sleeping pill of the benzodiazepine family.

Imitrex (Sumatriptan) - Migraine and cluster headache medication.

Inderal (Propranolol) - Beta Blocker used to treat high blood pressure and migraine.

Klonopin (Clonazepam) - Anti-panic and anticonvulsant medication also used to treat restless legs.

Lamisil (Terbinafine) - Antifungal used to treat ringworm, jock itch, and fungal infections of finger and toenails.

Lanoxin (Digoxin) - Digitalis based heart medication, used to treat and prevent heart failure.

Lexapro (Escitalopram) - SSRI type antidepressant.

Levitra (Vardenafil) - Erectile dysfunction treatment.

Librium (Chlordiazepoxide) - Anti-anxiety medication.

Lithium - Antidepressant used to treat bipolar disorder, mania, and also cluster headaches.

Lipitor (Atorvastatin) - Treatment for high or abnormal cholesterol and triglyceride levels.

Lopressor (Metoprolol) - Beta Blocker used for high blood pressure, glaucoma, and migraine.

Lotensin (Benazepril) - ACE inhibitor, treats high blood pressure, reduces risk of death from heart attack or stroke.

Luvox (Fluvoxamine) - SSRI used to treat obsessive-compulsive disorder, depression, panic, and anxiety.

Maxalt (Rizatriptan) - Migraine treatment.

Meridia (Sibutramine) - Appetite suppressant prescribed for serious weight problems.

Monopril (Fosinopril) - ACE inhibitor, treats high blood pressure, reduces risk of cardiovascular events such as heart attack or stroke.

Naprosyn (Naproxen) - Anti-inflammatory pain treatment. (Recent studies indicate increased risk of heart attack with this medication.)

Neurontin (Gabapentin) - Antiseizure medication also used for pain syndromes and migraine.

Nifedipine - Calcium channel blocker used to treat angina and high blood pressure.

Nitrazepam - Benzodiazepine used to treat insomnia. (Foreign only)

Nizoral (Ketoconazole) - Treatment for fungal and yeast infection.

Norflex (Orphenadrine) - Muscle relaxant.

Norvasc (Amlodipine) - Calcium channel blocker that treats angina and high blood pressure.

OxyContin (Oxycodone) - Narcotic pain medication for severe chronic pain.

Paxil (Paroxetine) - Antidepressant prescribed for major depressive disorders, anxiety, obsessive compulsive disorder, and posttraumatic stress.

Plavix (Clopidogrel) - Anti-clotting drug for the prevention of stroke, heart attack.

Percocet (Oxycodone and Acetaminophen) - Narcotic analgesic for moderate to severe pain.

Prevacid (Lansoprazole) - Proton pump inhibitor treating high acid and ulcerative conditions of the stomach and esophagus.

Prilosec (Omeprazole) - Proton pump inhibitor treating high acid and ulcerative conditions of the stomach and esophagus.

Prinivil, Zestril (Lisinopril) - ACE inhibitor, treats high blood pressure, reduces heart attack risk.

Propecia (Finasteride) - Hair growth treatment for men experiencing, or anticipating, hair loss.

ProSom (Estazolam) - Benzodiazepine treatment for insomnia.

Provigil (Modafinil) - Stimulant treatment for narcolepsy.

Prozac (Fluoxetine) - Antidepressant prescribed for major depressive disorders, obsessive compulsive disorder, bulimia, and severe PMS (PMDS).

Renova (Tretinoin) - Vitamin A based skin treatment for severe acne.

Restoril (Temazepam) - Benzodiazepine prescribed to treat insomnia.

Ritalin (Methylphenidate) - Mild stimulant used to treat ADD/ADHD and narcolepsy.

Roaccutane (Isotretinoin) -Vitamin A based skin treatment for severe acne.

Robaxin (Methocarbamol) - Skeletal muscle relaxant used to treat sprains or muscle injuries.

Sinequan (Doxepin) - Antidepressant used to treat severe depression, anxiety, insomnia, and chronic pain.

Skelaxin (Metaxalone) - Skeletal muscle relaxant used to treat sprains or muscle injuries.

Soma (Carisoprodol) - Skeletal muscle relaxant used to treat sprains or muscle injuries.

Sonata (Zaleplon) - Fast acting sleeping pill for short-term insomnia.

Sporanox (Itraconazole) - Antifungal treatment used for fungal and yeast infections.

Tagamet (Cimetidine) - Histamine blocker prescribed for gastrointestinal ulcers and acid reflux.

Tegretol (Carbamazepine) - Anticonvulsant also used to treat certain nerve pain and psychiatric disorders.

Tenormin (Atenolol) - Beta Blocker used to treat angina, hypertension, and migraine.

Tenuate (Diethylpropion) - Weight loss treatment for severe weight conditions.

Theo-Dur (Theophylline) - Bronchodilator, asthma treatment.

Tikosyn (Dofetilide) - Antiarrhythmic used to treat irregular heartbeat.

Toradol (Ketorolac) - Powerful NSAID, for short term use.

Trazodone - Antidepressant also used to treat insomnia.

Ultram (Tramadol) - Non-narcotic pain medication used to treat all levels of pain, chronic pain, and fibromyalgia.

Valium (Diazepam) - Anti-anxiety drug prescribed for anxiety, tremor, and muscle spasm.

Valtrex (Valacyclovir) - Herpes and shingles treatment.

Vaniqa (Eflornithine Cream) - Slows growth of excess facial hair.

Vasotec (Enalapril) - ACE inhibitor, treats high blood pressure, reduces risk of death from heart attack or stroke.

Viagra (Sildenafil) - Anti-impotence drug.

Vicodin (Hydrocodone and Acetaminophen) - Narcotic analgesic for moderate to severe pain.

Vicoprofen (Hydrocodone and Ibuprofen) - Narcotic analgesic for moderate to severe pain.

Vioxx (Rofecoxib) - COX II inhibitor used for osteoarthritis and acute or menstrual pain.

Vivactil (Protriptyline) - Tricyclic antidepressant also used for ADHD, narcolepsy, and migraine.

Wellbutrin | Zyban (Bupropion) - Depression medication also used to help quit smoking.

Xanax (Alprazolam) - Anti-anxiety drug prescribed for anxiety, panic, and some phobias.

Zanaflex (Tizanidine) - Antispastic used to treat muscle spasms in multiple sclerosis or spinal injury.

Zantac (Ranitidine) - Histamine blocker used to treat peptic ulcer.

Zestoretic (Hydrochlorothiazide, Lisinopril) - Combination high blood pressure treatment.

Zocor (Simvastatin) - HMG-CoA inhibitor prescribed to lower cholesterol, reduce risk of cardiovascular incidents such as heart attack and stroke.

Zoloft (Sertraline) - Antidepressant prescribed for panic disorder, depression, obsessive compulsive disorder, and posttraumatic stress.

Zovirax (Acyclovir) - Antiviral prescription for herpes and chickenpox outbreaks.

Zyloprim (Allopurinol) - Long-term preventive gout treatment.

Zyrtec (Cetirizine) - Antihistamine allergy treatment, causes less drowsiness.

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Disorders

Acne - Non-threatenting, but sometimes painful, skin condition caused by clogged hair follicles.

Anxiety - Excessive, sometimes paralyzing, worry. Sometimes accompanied by panic attacks.

Fibromyalgia - A syndrome characterized by bodywide chronic pain and fatigue not attributed to an infectious or degenerative disease.

Genital Yeast Infection - Fungal infection of the genital or vaginal area, usually accompanied by intense itching and discomfort, but not generally causing lasting harm.

Joint Pain - Chronic arthritic joint pain may be caused by gout, wear and tear, or autoimmune disorders.

Migraine - A type of severe headache which may last from 4-72 hours, and be accompanied by a range of unpleasant symptoms.

Pain - Your guide to pain control for headache, joint pain or arthritis, injury, recovery, chronic pain, and much more. Side effects and interactions for the general classes of pain medications.

Sleep Disorders - Inability to fall asleep (insomnia), stay asleep, sleep deeply, or conditions which cause you to wake up during the night such as restless legs or sleep apnea.

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Is there a medication you were looking for but didn't find on our list? Let us know what you'd like to read more about by sending an email to Customer Care.

References

• Medline - A service of the National Library of Medicine
• "Physicians' Desk Reference" 56th ed. 2002
• "The Essential Guide to Prescription Drugs 2002" by James J. Rybacki, Pharm.D.
• "The PDR [Physician's Desk Reference] Pocket Guide to Prescription Drugs" 5th Edition
• "The Merck Manual of Medical Information" Home Edition
• "Prescription for Nutritional Healing" 3rd ed. Balch & Balch
• Other sources have been specified as appropriate within individual fact sheets.

This medication information is not intended to diagnose symptoms, prescribe treatment, or to substitute for consultation with a physician. While we have made every effort to ensure that this information is accurate and extensive, only your doctor can tell you if a medication, or drug combination, is safe for you. Information intended for US residents only.