Allergies Home > What You Need to Know About Benadryl

When and How to Take the Drug

General considerations include the following:
 
  • This medication comes in many different forms. Depending on the particular product, it may be taken by mouth, applied to the skin, or injected into a vein or muscle.
     
  • You can take it with food or on an empty stomach. If the medication seems to bother your stomach, try taking it with a little food.
     
  • Because there are several different Benadryl products available, be sure to follow the instructions for your particular product.
     
  • For the medication to work properly, it must be taken as directed.
     

Benadryl Dosing Information

The recommended dosage will vary, depending on a number of factors, including:
 
  • The particular product
  • The medical condition being treated
  • Your age
  • How you respond to Benadryl
  • Other medications you are taking
  • Other medical conditions you may have.
     
As is always the case, do not adjust your dose unless your healthcare provider specifically instructs you to do so.
 
(Click Benadryl Dosage for more information.)
 

Potential Side Effects

As with any medicine, Benadryl can cause side effects. However, not everyone who takes the drug will have problems. Some people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or can easily be treated by you or your healthcare provider. Serious side effects are less common. Of course, some "side effects" of Benadryl (such as drowsiness) are not considered to be side effects in certain situations (such as if you are taking the medication to sleep).
 
Common side effects of Benadryl include, but are not limited to:
 
  • Drowsiness
  • Dizziness
  • Coordination problems
  • Indigestion or heartburn.
     
(Click Benadryl Side Effects to learn more, including potentially serious side effects that you should report immediately to your healthcare provider.)
 
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
List of references (click here):
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