This list includes 43 Pills that start with P, ranging from “Paliperidone” to “Pyridostigmine”. It features commonly prescribed, over‑the‑counter, and higher‑risk oral medicines used for mental health, pain, infections, heart conditions, and neuromuscular problems.
Pills that start with P are medications whose generic or brand names begin with the letter P. Many, such as paracetamol, have global use and long histories in public health.
Below you’ll find the table with Name, Generic/Brand, Primary use, Drug class, and Common side effects.
Name: The pill’s common name so you can quickly recognize which medicine appears in lists or prescriptions.
Generic/Brand: This tells you if the entry is a generic name or a marketed brand, helping you match labels and prescriptions.
Primary use: A concise description of the main condition the pill treats, so you can identify its usual purpose at a glance.
Drug class: The therapeutic group the medicine belongs to, which helps you understand related drugs and general effects.
Common side effects: Typical adverse reactions you may see, giving practical expectations without exhaustive medical detail.
Pills that start with P
| Name | Brand/Generic | Primary Use | Drug Class |
|---|---|---|---|
| Pantoprazole | generic (Protonix) | Acid reflux, ulcers | Proton-pump inhibitor |
| Paroxetine | generic (Paxil) | Depression, anxiety disorders | SSRI antidepressant |
| Propranolol | generic (Inderal) | High blood pressure, migraine prevention | Beta blocker |
| Prednisone | generic | Inflammation, asthma flare-ups | Corticosteroid |
| Prednisolone | generic | Inflammation, severe allergies | Corticosteroid |
| Prasugrel | generic (Effient) | Prevent clot after stent placement | Antiplatelet |
| Plavix | brand (clopidogrel) | Prevent stroke/heart attack | Antiplatelet |
| Pioglitazone | generic (Actos) | Type 2 diabetes | Thiazolidinedione |
| Potassium chloride | generic | Low potassium (hypokalemia) | Electrolyte supplement |
| Phenazopyridine | generic (Pyridium) | Urinary pain relief | Urinary analgesic |
| Phenytoin | generic (Dilantin) | Seizure control | Anticonvulsant |
| Phenobarbital | generic | Seizures, sedation | Barbiturate anticonvulsant |
| Promethazine | generic (Phenergan) | Nausea, allergy, motion sickness | Antihistamine/antiemetic |
| Prochlorperazine | generic (Compazine) | Severe nausea, psychosis | Antiemetic/antipsychotic |
| Pregabalin | generic (Lyrica) | Nerve pain, seizures | Anticonvulsant/neuropathic agent |
| Piroxicam | generic (Feldene) | Pain, inflammation | NSAID |
| Percocet | brand (oxycodone/acetaminophen) | Moderate to severe pain | Opioid analgesic combination |
| Penicillin V | generic | Strep throat, mild infections | Penicillin antibiotic |
| Pyrazinamide | generic | Part of tuberculosis treatment | Anti-tuberculosis antibiotic |
| Probenecid | generic | Gout prevention | Uricosuric agent |
| Propafenone | generic (Rythmol) | Heart rhythm disturbances | Antiarrhythmic (Class IC) |
| Pramipexole | generic (Mirapex) | Parkinson’s disease, restless legs | Dopamine agonist |
| Procarbazine | generic (Matulane) | Hodgkin lymphoma chemotherapy | Alkylating chemotherapy |
| Pravastatin | generic (Pravachol) | High cholesterol | Statin |
| Pitavastatin | generic (Livalo) | High cholesterol | Statin |
| Perphenazine | generic | Psychosis, severe nausea | Typical antipsychotic |
| Phentermine | generic (Adipex-P) | Short-term weight loss | Stimulant appetite suppressant |
| Pilocarpine | generic (Salagen) | Dry mouth (Sjögren’s syndrome) | Muscarinic agonist |
| Pancrelipase | generic (Creon) | Pancreatic enzyme replacement | Digestive enzyme |
| Propylthiouracil | generic (PTU) | Hyperthyroidism | Antithyroid agent |
| Potassium iodide | generic | Thyroid protection for radiation exposure | Thyroid blockade agent |
| Pseudoephedrine | generic (Sudafed) | Nasal congestion | Oral decongestant |
| Pomalidomide | generic (Pomalyst) | Multiple myeloma | Immunomodulatory anti-cancer agent |
| Paliperidone | generic (Invega) | Schizophrenia, schizoaffective disorder | Atypical antipsychotic |
| Phenylephrine | generic | Nasal congestion (oral) | Oral decongestant |
| Paromomycin | generic | Intestinal amebiasis, giardiasis | Aminoglycoside antibiotic (oral) |
| Prazosin | generic | High blood pressure, PTSD-related nightmares | Alpha-1 blocker |
| Protriptyline | generic | Depression | Tricyclic antidepressant |
| Pyrantel pamoate | generic | Pinworm and some intestinal worms | Anthelmintic |
| Pyridostigmine | generic (Mestinon) | Myasthenia gravis | Acetylcholinesterase inhibitor |
| Paricalcitol | generic (Zemplar) | Secondary hyperparathyroidism in dialysis | Vitamin D analog |
| Proguanil | generic (Paludrine) | Malaria prophylaxis and treatment | Antimalarial |
| Pimavanserin | generic (Nuplazid) | Parkinson’s disease psychosis | Atypical antipsychotic (serotonin modulator) |
Descriptions
Pantoprazole
Oral tablet; reduces stomach acid. Side effects: headache, diarrhea, nausea, abdominal pain. Safety: short-term use is common; long-term use may raise fracture and low magnesium risk.
Paroxetine
Oral tablet; treats depression and anxiety. Side effects: nausea, drowsiness, sexual dysfunction, weight changes. Safety: may increase suicidal thoughts in young people; avoid abrupt stop.
Propranolol
Oral tablet/capsule; lowers heart rate and blood pressure. Side effects: fatigue, dizziness, slow heartbeat, cold hands. Safety: avoid in severe asthma and abrupt withdrawal.
Prednisone
Oral tablet; reduces inflammation. Side effects: weight gain, mood changes, insomnia, increased appetite. Safety: long-term use raises infection, bone loss, blood sugar risks.
Prednisolone
Oral tablet/liquid; treats inflammation and allergic reactions. Side effects: weight gain, mood swings, high blood sugar, insomnia. Safety: taper gradually after long use to avoid adrenal insufficiency.
Prasugrel
Oral tablet; helps prevent clots after PCI. Side effects: bleeding, bruising, nausea. Safety: higher bleeding risk; not for recent stroke patients.
Plavix
Oral tablet; reduces blood clot risk. Side effects: bleeding, bruising, upset stomach. Safety: genetic differences affect response; inform clinicians before surgery.
Pioglitazone
Oral tablet; lowers blood sugar by insulin sensitivity. Side effects: weight gain, fluid retention, muscle pain. Safety: may worsen heart failure and has bladder cancer association with long-term use.
Potassium chloride
Oral tablet/capsule; replaces potassium. Side effects: stomach upset, nausea, abdominal pain. Safety: high doses can harm the heart; take as directed and don’t crush extended-release tablets.
Phenazopyridine
Oral tablet; eases bladder pain and burning. Side effects: headache, dizziness, orange urine, stomach upset. Safety: colors urine bright orange; short-term use only and not an antibiotic.
Phenytoin
Oral capsule/tablet; prevents seizures. Side effects: dizziness, gum swelling, tremor, rash. Safety: narrow therapeutic window—monitor blood levels and drug interactions.
Phenobarbital
Oral tablet/capsule; controls seizures and sedation. Side effects: drowsiness, dizziness, dependence, memory problems. Safety: risk of respiratory depression and dependence; avoid abrupt stop.
Promethazine
Oral tablet; treats nausea and allergy. Side effects: drowsiness, dry mouth, dizziness, blurred vision. Safety: causes sedation—avoid driving and alcohol.
Prochlorperazine
Oral tablet; treats severe nausea and psychiatric symptoms. Side effects: drowsiness, dizziness, movement disorders, dry mouth. Safety: can cause movement side effects and low blood pressure.
Pregabalin
Oral capsule/tablet; eases nerve pain and seizures. Side effects: dizziness, drowsiness, weight gain, swelling. Safety: may cause dizziness and sedation; avoid alcohol.
Piroxicam
Oral capsule/tablet; reduces pain and inflammation. Side effects: stomach pain, heartburn, dizziness, headache. Safety: increases risk of heart attack, stroke, and GI bleeding with long-term use.
Percocet
Oral tablet; strong pain medicine. Side effects: drowsiness, constipation, nausea, dizziness. Safety: risk of addiction, respiratory depression, and acetaminophen liver toxicity.
Penicillin V
Oral tablet; treats common bacterial infections. Side effects: diarrhea, rash, nausea. Safety: watch for allergic reactions; carry alert if penicillin-allergic.
Pyrazinamide
Oral tablet; used in TB regimens. Side effects: liver injury, joint pain, nausea. Safety: can damage the liver—monitor liver tests regularly.
Probenecid
Oral tablet; helps lower uric acid. Side effects: nausea, rash, headache. Safety: increases uric acid excretion—ensure good hydration and monitor kidney function.
Propafenone
Oral tablet; treats arrhythmias. Side effects: dizziness, taste changes, constipation, blurred vision. Safety: can worsen certain arrhythmias—use under cardiology supervision.
Pramipexole
Oral tablet; improves movement and restless legs. Side effects: sleepiness, dizziness, nausea, impulsive behaviors. Safety: may cause sudden sleep onset and compulsive behaviors.
Procarbazine
Oral capsule/tablet; used in chemo regimens. Side effects: nausea, low blood counts, fatigue. Safety: teratogenic and interacts with many drugs and foods—special handling and monitoring.
Pravastatin
Oral tablet; lowers LDL cholesterol. Side effects: muscle pain, headache, nausea, liver enzyme changes. Safety: monitor for unexplained muscle pain and liver problems.
Pitavastatin
Oral tablet; lowers cholesterol. Side effects: muscle aches, headache, constipation, liver enzyme rise. Safety: risk of muscle injury; check liver tests if symptomatic.
Perphenazine
Oral tablet; treats psychosis and severe nausea. Side effects: drowsiness, movement disorders, dry mouth, dizziness. Safety: long-term use can cause movement side effects.
Phentermine
Oral tablet/capsule; aids short-term weight loss. Side effects: increased heart rate, insomnia, dry mouth, nervousness. Safety: not for uncontrolled hypertension or heart disease; risk of dependence.
Pilocarpine
Oral tablet; stimulates saliva production. Side effects: sweating, nausea, sweating, urinary frequency, headache. Safety: may worsen asthma or breathing problems.
Pancrelipase
Oral capsule; helps digest fats, proteins, carbs. Side effects: stomach pain, diarrhea, nausea. Safety: take with meals; dosing based on fat content; avoid inhalation of powder.
Propylthiouracil
Oral tablet; reduces thyroid hormone production. Side effects: rash, joint pain, liver injury, nausea. Safety: can cause severe liver damage; monitor liver tests.
Potassium iodide
Oral tablet/liquid; protects the thyroid from radioactive iodine. Side effects: stomach upset, metallic taste, rash. Safety: use only as directed for radiation events; iodine allergy caution.
Pseudoephedrine
Oral tablet; shrinks nasal blood vessels. Side effects: jitteriness, insomnia, increased heart rate, headache. Safety: can raise blood pressure and heart rate; avoid in uncontrolled hypertension.
Pomalidomide
Oral capsule; treats certain blood cancers. Side effects: low blood counts, fatigue, constipation. Safety: highly teratogenic—strict pregnancy prevention program required.
Paliperidone
Oral tablet; treats psychosis. Side effects: weight gain, drowsiness, tremor, increased prolactin. Safety: monitor for metabolic changes and movement disorders.
Phenylephrine
Oral tablet; relieves nasal congestion. Side effects: headache, increased blood pressure, nervousness, palpitations. Safety: less effective than pseudoephedrine; avoid in severe hypertension.
Paromomycin
Oral capsule/tablet; treats intestinal infections. Side effects: nausea, diarrhea, abdominal pain. Safety: poorly absorbed systemically but watch for allergies and GI upset.
Prazosin
Oral tablet; lowers blood pressure and may reduce nightmares. Side effects: dizziness, lightheadedness, headache, fatigue. Safety: first dose may cause sudden drop in blood pressure—take at bedtime.
Protriptyline
Oral tablet; treats depression. Side effects: dry mouth, drowsiness, constipation, blurred vision, urinary retention. Safety: overdose risk is serious—use caution and monitor.
Pyrantel pamoate
Oral tablet/suspension; eliminates worms. Side effects: nausea, vomiting, headache, dizziness. Safety: single-dose treatment often effective; follow hygiene measures to prevent reinfection.
Pyridostigmine
Oral tablet; improves muscle strength. Side effects: diarrhea, abdominal cramps, increased saliva, sweating. Safety: dosing individualized; watch for cholinergic side effects.
Paricalcitol
Oral capsule/tablet; lowers parathyroid hormone. Side effects: nausea, weakness, low phosphate. Safety: monitor calcium and phosphorus levels to avoid hypercalcemia.
Proguanil
Oral tablet; used for malaria prevention and in combos. Side effects: nausea, abdominal pain, mouth ulcers. Safety: use with correct dosing schedule; combine with other antimalarials as directed.
Pimavanserin
Oral tablet; reduces hallucinations and delusions in Parkinson’s. Side effects: swelling, nausea, confusion. Safety: may increase death risk in elderly with dementia-related psychosis.