What happens if I miss a dose (Trilafon)?
Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
What happens if I overdose (Trilafon)?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. Overdose symptoms may include dry mouth, constipation, bloating or stomach cramps, extreme drowsiness, dizziness, fast or pounding heartbeat; uncontrollable muscle movements, fainting, and seizure (convulsions).
What should I avoid while taking perphenazine (Trilafon)?
This medication may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert. Avoid getting up too fast from a sitting or lying position, or you may feel dizzy. Get up slowly and steady yourself to prevent a fall.
Avoid drinking alcohol. It can increase some of the side effects of perphenazine.
Avoid exposure to sunlight or tanning beds. Perphenazine can make you sunburn more easily. Wear protective clothing and use sunscreen (SPF 30 or higher) when you are outdoors.
What other drugs will affect perphenazine (Trilafon)?
Cold or allergy medicine, sedatives, narcotic pain medicine, sleeping pills, muscle relaxers, and medicine for seizures, depression or anxiety can add to sleepiness caused by perphenazine. Tell your doctor if you regularly use any of these medicines, or any other antipsychotic medicine.
Also tell your doctor if you are taking any of the following medicines:
- atropine (Atreza, Sal-Tropine);
- lithium (Eskalith, Lithobid);
- gefitinib (Iressa), imatinib (Gleevec), or nilotinib (Tasigna);
- an antibiotic;
- birth control pills or hormone replacement estrogens;
- blood pressure medication;
- a blood thinner such as warfarin (Coumadin, Jantoven);
- certain asthma medications or bronchodilators;
- heart rhythm medication;
- HIV or AIDS medications;
- incontinence medications;
- insulin or diabetes medications you take by mouth;
- medication for nausea, vomiting, or motion sickness;
- medications to treat or prevent malaria;
- medications used for general anesthesia;
- medicines used to prevent organ transplant rejection;
- numbing medicine such as lidocaine or Novocain;
- a stimulant or ADHD medication;
- ulcer or irritable bowel medications; or
- medicines to treat Parkinson's disease, restless leg syndrome, or pituitary gland tumor (prolactinoma).
This list is not complete and there are many other medicines that can interact with perphenazine. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor. Keep a list with you of all the medicines you use and show this list to any doctor or other healthcare provider who treats you.
Where can I get more information?
Your pharmacist can provide more information about perphenazine.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
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