Periactin

Recommended dosage

ADULTS

The usual initial dose is 4 milligrams (1 tablet) 3 times daily. Dosage may range from 4 to 20 milligrams a day, but most people will take between 12 and 16 milligrams. Some may need as much as 32 milligrams a day. If you are over 65, the doctor will probably keep the dosage relatively low.

CHILDREN

Ages 2 to 6 Years

The usual dose is 2 milligrams (one-half tablet) 2 or 3 times a day; your doctor may adjust the dose if necessary. A child this age should not take more than 12 milligrams a day.

Ages 7 to 14 Years

The usual dose is 4 milligrams (1 tablet) 2 or 3 times a day; your doctor may adjust the dose if needed. A child this age should not take more than 16 milligrams a day.

Overdosage

Any drug taken in excess may have serious consequences. An overdose of Periactin can be fatal. If you suspect an overdose, seek medical attention immediately.

• Symptoms of Periactin overdose may include:
  Dilated pupils, dry mouth, extreme excitement and agitation, fever, flushing, stomach or bowel distress, stupor or coma

Overdosage in children may produce hallucinations and convulsions.