What happens if I miss a dose (Haldol)?
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 (Haldol)?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. An overdose of haloperidol can be fatal.
Overdose symptoms may include extreme drowsiness, feeling like you might pass out, tremors, and uncontrolled muscle movements in your eyes, tongue, jaw, or neck.
What should I avoid while taking haloperidol (Haldol)?
Haloperidol 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.
Drinking alcohol can increase certain side effects of haloperidol.
Avoid becoming overheated or dehydrated during exercise and in hot weather. You may be more prone to heat stroke while you are taking haloperidol.
What other drugs will affect haloperidol (Haldol)?
Before using haloperidol, tell your doctor if you regularly use other medicines that make you sleepy (such as cold or allergy medicine, narcotic pain medicine, sleeping pills, muscle relaxers, and medicine for depression or anxiety). They can add to sleepiness caused by haloperidol.
Tell your doctor about all other medicines you use, especially:
- arsenic trioxide (Trisenox);
- a blood thinner such as warfarin (Coumadin);
- lithium (Eskalith, Lithobid, others);
- seizure medication;
- rifampin (Rifadin, Rifamate, Rimactane);
- tacrolimus (Prograf);
- an antibiotic such as clarithromycin (Biaxin), erythromycin (E.E.S., EryPed, Ery-Tab, Erythrocin, Pediazole), levofloxacin (Levaquin), moxifloxacin (Avelox), or pentamidine (NebuPent, Pentam);
- an antidepressant such as amitriptylline (Elavil, Vanatrip, Limbitrol), clomipramine (Anafranil), or desipramine (Norpramin);
- anti-malaria medications such as chloroquine (Aralen) or mefloquine (Lariam);
- heart rhythm medicine such as amiodarone (Cordarone, Pacerone), dofetilide (Tikosyn), disopyramide (Norpace), dronedarone (Multaq), ibutilide (Corvert), procainamide (Procan, Pronestyl), propafenone (Rythmol), quinidine (Quin-G), or sotalol (Betapace);
- medicine to prevent or treat nausea and vomiting such as dolasetron (Anzemet), droperidol (Inapsine), or ondansetron (Zofran);
- medicines to treat psychiatric disorders, such as chlorpromazine (Thorazine), clozapine (FazaClo, Clozaril), pimozide (Orap), thioridazine (Mellaril), or ziprasidone (Geodon);
- migraine headache medicine such as sumatriptan (Imitrex, Treximet) or zolmitriptan (Zomig); or
- narcotic medication such as methadone (Methadose, Diskets, Dolophine).
This list is not complete and other drugs may interact with haloperidol. 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.
Where can I get more information?
Your pharmacist can provide more information about haloperidol.
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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