Pfizerpen-AS Suspension Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Less Severe expression

  • Diarrhea
  • Feel Like Throwing Up
  • Head Pain

INFREQUENT side effects


If experienced, these tend to have a Less Severe expression

  • Rash
  • Throwing Up

RARE side effects


If experienced, these tend to have a Severe expression

  • Abnormal Liver Function Tests
  • Abnormally Low Blood Pressure
  • Allergic Reaction Causing Serum Sickness
  • Cellulitis
  • Clostridium Difficile Infection
  • Complete Stoppage Of The Heart
  • Dead Skin
  • Decreased Blood Platelets
  • Decreased White Blood Cells
  • Disorder Of Nerve
  • Gangrene
  • Gangrene Of Intestine Caused By Blood Supply Problem
  • Hemolytic Anemia
  • Increased Eosinophils In The Blood
  • Inflamed Spinal Cord
  • Kidney Disease With Reduction In Kidney Function
  • Kidney Failure
  • Life Threatening Allergic Reaction
  • Methemoglobinemia
  • Presence Of Iron-Containing Pigment Myoglobin In Urine
  • Red Blood In Bowel Movement
  • Rhabdomyolysis
  • Seizures
  • Skin Rash With Sloughing
  • Skin Ulcer
  • Stroke
  • Swollen Lymph Nodes
  • Trouble Breathing
  • Vasculitis
  • Vocal Cord Swelling

If experienced, these tend to have a Less Severe expression

  • Bone Inflammation With Pain
  • Confused
  • Discolored Spots And Small Elevations Of The Skin
  • Dizzy
  • Drowsiness
  • Extreme Sense Of Well Being
  • Fast Heartbeat
  • Feeling Anxious
  • Feeling Faint
  • Feeling Weak
  • Fever
  • Heart Throbbing Or Pounding
  • Hemorrhage Of Blood Under The Skin
  • Hives
  • Itching
  • Low Energy
  • Nervous
  • Numbness And Tingling
  • Pain
  • Shaking Extremities
  • Signs And Symptoms At Injection Site
  • Visible Water Retention
  • Widening Of Blood Vessels

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CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.