Trihexyphenidyl hydrochloride (By mouth)

There may be other brand names for this medicine.

You should not use this medicine if you have had an allergic reaction to trihexyphenidyl.

Your doctor will tell you how much to take and how often.
This medicine may be taken before or after meals. Swallow whole. Do not crush, chew, or open the capsules before swallowing.
Measure the oral liquid with a measuring spoon or medicine cup.

Take the missed dose as soon as possible.
If it is almost time for your next regular dose, wait until then to take your medicine, and skip the missed dose.
You should not use two doses at the same time.

Store at room temperature, away from heat, moisture, and direct light. Do not freeze the oral liquid.
Keep all medicine out of the reach of children.

Avoid drinking alcohol while taking this medicine.
Make sure your doctor knows if you are taking any other medicines that may make you sleepy such as sleeping pills, cold and allergy medicine, muscle relaxants, tranquilizers, or narcotic pain killers.

Talk with your doctor before taking this medicine if you have glaucoma, an enlarged prostate, bowel or stomach problems, fast or irregular heartbeat, liver, heart, or kidney disease, or any other medical problems.
This medicine may cause drowsiness. Be careful if you are driving, using machinery, or doing other dangerous jobs.
This medicine may make you sweat less and cause your body to get too hot. Be careful during hot weather, while you are exercising, or if using a sauna or whirlpool.

Last Updated: 1/27/2017