Drug Interactions Index

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Drug interactions occur frequently. Get facts about the types of drug interactions, what substances or other things that may interact with drugs such as OTC drug and prescription drugs, vitamins, food(s) (grapefruit), and laboratory tests. Find out how to protect yourself from potential drug interactions.

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    Related Diseases & Conditions

    • Sun-Sensitive Drugs (Photosensitivity to Drugs) Sun sensitivity (photosensitivity) is an inflammation of the skin induced by the combination of medications or substances and...learn more »
      In This Article
      Sun-Sensitive Drugs (Photosensitivity to Drugs) Article
      • Sun-sensitizing drugs (photosensitivity) facts
      • What is photosensitivity?
      • What is the difference between a photoallergic and a phototoxic reaction?
      • What is ultraviolet light?
      • Photoallergic and phototoxic reaction pictures
      • What are the symptoms of sun sensitivity (photosensitivity)?
      • Phototoxic drugs
      • Photoallergic drugs
      • Are there any medical conditions that may cause photosensitivity?
      • How is sun sensitivity (photosensitivity) diagnosed?
      • What is the treatment for a photosensitizing drug reaction?
      • Is anyone taking these drugs at risk for developing sunburn?
      • Can any foods or plants cause sun sensitivity (photosensitivity) reactions?
      • Pictures of food and plant sun-sensitivity (photosensitivity) reactions
      • Are there any medical applications of sun sensitivity (photosensitivity)?
    • Fibromyalgia Fibromyalgia is a chronic pain condition characterized by symptoms such as fatigue, sleep disturbances, and tender points. Stress...learn more »
      In This Article
      Fibromyalgia Article
      • Fibromyalgia facts
      • What is fibromyalgia?
      • What causes fibromyalgia?
      • Is fibromyalgia hereditary?
      • What are risk factors for fibromyalgia?
      • What are fibromyalgia symptoms and signs?
      • How do physicians diagnose fibromyalgia?
      • What is the treatment for fibromyalgia?
      • Are there any home remedies for fibromyalgia?
      • Does diet or exercise affect fibromyalgia?
      • What is the prognosis of fibromyalgia?
      • Is it possible to prevent fibromyalgia?
      • Are there support groups for fibromyalgia?
      • What is the latest research on fibromyalgia?
    • Headache Headaches can be divided into two categories: primary headaches and secondary headaches. Migraine headaches, tension headaches,...learn more »
      In This Article
      Headache Article
      • Headache facts
      • What is a headache?
      • How are headaches classified?
      • What are primary headaches?
      • What are secondary headaches?
      • What are cranial neuralgias, facial pain, and other headaches?
      • What causes tension headaches?
      • What are the symptoms of tension headaches?
      • How are tension headaches diagnosed?
      • How are tension headaches treated?
      • What causes cluster headaches?
      • What are the symptoms of cluster headaches?
      • How are cluster headaches diagnosed?
      • How are cluster headaches treated?
      • Can cluster headaches be prevented?
      • What diseases cause secondary headaches?
      • How are secondary headaches diagnosed?
      • What are the exams and tests for secondary headaches?
      • When should I seek medical care for a headache?
    • Dementia Dementia is a significant loss of intellectual abilities such as memory capacity, severe enough to interfere with social or...learn more »
      In This Article
      Dementia Article
      • Dementia facts*
      • Introduction to dementia
      • What is dementia?
      • What are the different kinds of dementia?
      • Alzheimer's disease
      • Vascular dementia
      • Lewy body dementia
      • Frontotemporal dementia
      • HIV-associated dementia
      • Huntington's disease
      • Dementia pugilistica
      • Corticobasal degeneration
      • Creutzfeldt-Jakob disease
      • Other rare hereditary dementias
      • Secondary dementias
      • Dementias in children
      • What other conditions can cause dementia?
      • What conditions are not dementia?
      • What causes dementia?
      • What are the risk factors for dementia?
      • How is dementia diagnosed?
      • Is there any treatment for dementia?
      • Can dementia be prevented?
      • What kind of care does a person with dementia need?
      • What research is being done?
      • How can I help research?
      • Where can I get more information?
    • Atrial Fibrillation (AFib) Atrial fibrillation or AFib is an abnormality in the heart rhythm which involves irregular and often rapid beating of the heart....learn more »
      In This Article
      Atrial Fibrillation (AFib) Article
      • Atrial fibrillation (AFib) facts
      • What is atrial fibrillation (AFib)?
      • What causes atrial fibrillation (AFib)?
      • What does atrial fibrillation look like?
      • What are the symptoms of atrial fibrillation (AFib)?
      • What are the risk factors for developing atrial fibrillation (AFib)?
      • How is atrial fibrillation (AFib) diagnosed?
      • What is the treatment for atrial fibrillation (AFib)?
      • Slowing the heart rate with medications
      • Anticoagulation drugs to prevent blood clots and strokes
      • Converting atrial fibrillation (AFib) to a normal rhythm
      • Cardioversion with medications
      • Other methods of converting AFib to a normal rhythm
      • Procedures for treating and preventing atrial fibrillation (AFib)
      • What are the complications of atrial fibrillation (AFib)?
      • What is new in atrial fibrillation (AFib)?
    • Migraine Headache Migraine headaches are severe headaches that are accompanies to sensitivity to light, sounds, and smells. They are often...learn more »
      In This Article
      Migraine Headache Article
      • Migraine headache facts
      • What is a migraine?
      • What are migraine triggers?
      • What causes migraines?
      • What are the risk factors for migraine?
      • What are the signs and symptoms of migraines?
      • How are migraines diagnosed?
      • What is the treatment for migraines?
      • Migraine medications
      • What self-care treatment and lifestyle changes work for migraines?
      • How are migraines managed during pregnancy?
      • How are migraines managed in children?
      • What is the prognosis for migraines?
      • Can migraines be prevented?

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Terms related to Drug Interactions:

  • Interactions, Drug