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Drug reaction
A drug reaction is an unintended health consequence of taking a medication. This includes known pharmacological side effects as well as known idiosyncratic effects. Drug allergy is a bit different and involves suspected immunologic response to the drug. An allergy can involve hives, anaphylaxis, angioedema, itchy or blistering rash, joint pain, blood disorders and even organ failure.
Dr. Corey Clay reviewed this
12 year experience in Allergy and Immunology
How long it usually lasts:
How common it is:
Related questions
A 34-year old asked:
What are the signs and symtoms of major drug reaction?
1 doctor answer • 6 doctors weighed in
A 28-year old male asked:
What is the definition or description of: drug reaction?
2 doctor answers • 6 doctors weighed in
A 34-year old asked:
What is the difference between an adverse drug reaction and side effect?
1 doctor answer • 3 doctors weighed in
A 27-year old male asked:
What is the main difference between adverse drug reaction and side effect of drug. Explain it.
1 doctor answer • 1 doctor weighed in
A 40-year old female asked:
I am prone to tiny hives, so each time i take any pills, it is hard to know if i'm seeing my usual hives or having a drug reaction. How to tell?
1 doctor answer • 1 doctor weighed in
A 23-year old female asked:
I had an adverse drug reaction once and they gave me antiallergy immediatelly..Is there any tests I should run to know wut s the allergen ?
1 doctor answer • 1 doctor weighed in
A 36-year old female asked:
What are sedation drugs commonly used in colonoscopy?My BP dropped from 113/70 to 70/40 and nurse said i passed out.Is it likely due to drug reaction?
1 doctor answer • 1 doctor weighed in
A 32-year old female asked:
What is the treatment for acute drug reaction to omeprazole ,had chills , bone ,joint pain ,hand feet twitch,dizzy, rash come n gofrequent urination?
1 doctor answer • 5 doctors weighed in
A 65-year old male asked:
I got a rash on my body like a sunburn with a little itching, if this was caused by a drug reaction how long should this rash last?
1 doctor answer • 1 doctor weighed in
A 40-year old female asked:
What syms would I have if allergic to nsaids? I'm a chronic hive sufferer, & get hives w nsaids, but no other sym's. My usual hives, or drug reaction?
2 doctor answers • 2 doctors weighed in
A 39-year old asked:
What is better for q on drug reaction, this site, a pharmacist or an emergency medicine physician?
1 doctor answer • 2 doctors weighed in
A 50-year old female asked:
Where can I report a drug reaction, I think should be removed from the market! Depo-Provera provera (medroxyprogesterone) is poison! ?
1 doctor answer • 3 doctors weighed in
A 16-year old male asked:
Is there any drug reaction if i take a one a day teen multivitamin in the morning with breakfast and solodyn (minocycline) at dinner time? Thanks
1 doctor answer • 1 doctor weighed in
A 26-year old female asked:
I noticed hairy tongue on my tongue , what can I do to get rid of this? How to know if its fungal or drug reaction? I took metron and doxy a week ago
2 doctor answers • 3 doctors weighed in
A 63-year old female asked:
Few small hives come/go quickly on face for 2 days aft bad news. Klonopin (clonazepam) .5mg 3 x's day for anxiety. Get friction hives. Anxiety or drug reaction?
3 doctor answers • 5 doctors weighed in
A 35-year old male asked:
Can Sympathetic Nerve Block procedure help/cure tachycardia/angina/vascular issues as well as pain that I've had after traumatic drug reaction?
1 doctor answer • 1 doctor weighed in
A 40-year old female asked:
If a person has hives from a drug reaction but is truly allergic to benadryl (diphenhydramine), (diphenhydramine) will taking a xyzal or Claritin help the reaction as much as benadryl (diphenhydramine)?
1 doctor answer • 2 doctors weighed in
A 62-year old male asked:
I am on simvastatin and have a sensitive scalp and some pain below my right eye. Is it maybe drug reaction?
2 doctor answers • 2 doctors weighed in
A 40-year old female asked:
Taking 200mg gabapentin 1x daily for 6 months. Last two days feel itchy and have small area of red bumps(rash) on my mid left back. Drug reaction?
1 doctor answer • 1 doctor weighed in
A 36-year old male asked:
Hives/angioedema abruptly 12 days post-microdiskectomy. Night sweats since surgery too. All infection tests (-). Delayed drug reaction? Off all meds.
1 doctor answer • 1 doctor weighed in
A 25-year old male asked:
Medication for cystic acne & saeborrheic dermatitis causing severe migraines.Using isotretinoin, minocycline as HCl BP & desloratadine. Drug reaction?
1 doctor answer • 1 doctor weighed in
A 29-year old female asked:
Does developing petechiae from drug reaction on arms and/or legs mean getting brain bleed simultaneously?
1 doctor answer • 1 doctor weighed in
A 63-year old female asked:
1 small red purpura on leg no itch. Lab = drug reaction. Doc says senile purpura. Now rust color, Same dx? Daily aspirin. Platelets MVP CBC normal.
1 doctor answer • 2 doctors weighed in
A 39-year old female asked:
Been on low dose antibiotic for a year to prevent UTI. Suddenly develop red bumps on legs that keep appearing and now woke up and bottom of feet are very sore and hurt, Is this a drug reaction?
2 doctor answers • 4 doctors weighed in
A 26-year old male asked:
How Can I Contain Itchy Symptoms While On Medrol 4mg? I got prescribed Medrol 4mg for an all body drug reaction rash and took my 6 pills today and am still having moderate itching in my hands and feet. some help with Allegra, barely w/ hydrocortisone?
1 doctor answer • 1 doctor weighed in
A 43-year old female asked:
Bx said spongiotic dermatitis drug reaction likely. EM type rash only on extremities ,hands/feet extreme itch and blisters several days after augmentin (amoxicillin and clavulanate). Never had allergy. Why such delayed reaction. ?
2 doctor answers • 2 doctors weighed in
A 51-year old female asked:
I'm taking amoxicillin/metronidazole for dental abscess. I'd been having stabbing, nerve type pain around my eye, cheek and scalp for a couple days, I now have raised, red, itchy patches with tiny blisters there . Cld it be drug reaction or shingles?
1 doctor answer • 2 doctors weighed in
A 40-year old asked:
Horrible drug screen reaction! help please me save my positiob on swim team?
1 doctor answer • 1 doctor weighed in
A 40-year old asked:
How can I treat a swollen face due to a drug allergic reaction?
1 doctor answer • 2 doctors weighed in
A 18-year old female asked:
What does it mean when a drug allegation reaction is unlikely what's the difference from rare?
1 doctor answer • 1 doctor weighed in
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