Here you’ll find 16 Pills that start with K that begin with K, organized from “Kadian” to “Kytril”. This collection covers prescription and over‑the‑counter oral medicines commonly used for pain, nausea, heart conditions, and other routine care.

Pills that start with K are oral medicines whose brand or generic names begin with the letter K. Many include familiar examples like Kadian for chronic pain and Kytril for nausea.

Below you’ll find the table with Name, Generic/Brand, Primary use, Drug class, Common side effects, and Source.

Name: The pill’s marketed or generic name, quoted exactly so you can match labels, prescriptions, or pill images quickly.

Generic/Brand: Shows whether the name is a generic molecule or a brand, helping you understand prescription labels and cost differences.

Primary use: Summarizes the main medical purpose in simple terms so you can spot likely treatments at a glance.

Drug class: Lists the therapeutic class so you know how the medicine works generally and what other drugs it resembles.

Common side effects: Gives three to six frequent adverse effects so you can anticipate typical reactions and recognize when to seek help.

Source: Provides a concise citation or link to trusted references, letting you verify details or read prescribing information quickly.

Pills that start with K

NameGeneric name(s)Primary use (main indication)Common side effects (3–6)
KlonopinclonazepamSeizures, panic disorderDrowsiness, dizziness, coordination problems, memory impairment
KeppralevetiracetamEpilepsy (seizure control)Somnolence, dizziness, irritability, weakness
KeflexcephalexinBacterial infections (skin, UTI, respiratory)Diarrhea, nausea, rash, abdominal pain
KlacidclarithromycinRespiratory and skin infectionsNausea, taste disturbance, diarrhea, elevated liver enzymes
KalydecoivacaftorCystic fibrosis with specific CFTR mutationsHeadache, abdominal pain, rash, elevated liver enzymes
Kivexaabacavir, lamivudineHIV treatment (combination therapy)Nausea, headache, fatigue, hypersensitivity reaction (abacavir)
Kaletralopinavir, ritonavirHIV treatmentDiarrhea, nausea, hyperlipidemia, PR prolongation
Kombiglyzesaxagliptin, metforminType 2 diabetesGastrointestinal upset, hypoglycemia (with insulin), headache
Kadianmorphine sulfate (extended‑release)Chronic severe painConstipation, drowsiness, nausea, respiratory depression
Kapvayclonidine ERADHD (adjunct) and hypertensionDrowsiness, dry mouth, constipation, low blood pressure
KisqaliribociclibAdvanced HR+/HER2‑ breast cancerNeutropenia, nausea, fatigue, QT prolongation
KytrilgranisetronPrevention of nausea/vomiting (chemo, post‑op)Headache, constipation, dizziness
KetoprofenketoprofenPain and inflammation (NSAID)Stomach upset, heartburn, dizziness, increased bleeding
Ketorolacketorolac tromethamineShort‑term moderate‑to‑severe painGI upset, drowsiness, bleeding risk, kidney effects
KestinebilastineAllergic rhinitis, urticariaHeadache, somnolence, dry mouth
KemadrinprocyclidineParkinsonism and drug‑induced extrapyramidal symptomsDry mouth, blurred vision, constipation, urinary retention

Descriptions

Klonopin
Brand benzodiazepine oral tablet used for seizures and anxiety; can cause dependence and withdrawal if stopped abruptly.
Keppra
Brand anticonvulsant oral tablet/capsule; generally well tolerated but can affect mood or behavior.
Keflex
Brand first‑generation cephalosporin antibiotic in oral capsule/tablet form; watch for penicillin allergy cross‑reactivity.
Klacid
Brand macrolide antibiotic oral tablet/capsule; interacts with many drugs and may affect heart rhythm.
Kalydeco
Brand oral tablet for certain cystic fibrosis mutations; requires genetic testing and liver monitoring.
Kivexa
Brand oral tablet antiretroviral combo; abacavir hypersensitivity can be severe—HLA‑B*57:01 testing recommended.
Kaletra
Brand protease inhibitor tablets/capsules for HIV; strong drug interactions and metabolic effects.
Kombiglyze
Brand oral tablet combining DPP‑4 inhibitor and metformin; monitor blood sugar and kidney function.
Kadian
Brand extended‑release opioid capsules for chronic pain; risk of dependence and overdose.
Kapvay
Brand extended‑release oral tablet; central alpha‑2 agonist—don’t stop abruptly (rebound hypertension).
Kisqali
Brand oral CDK4/6 inhibitor for cancer; requires blood counts and ECG monitoring.
Kytril
Brand oral tablet/ODT antiemetic (5‑HT3 antagonist); used to prevent chemotherapy or postoperative nausea.
Ketoprofen
Generic NSAID oral tablet for pain and inflammation; can cause GI bleeding and worsen heart or kidney disease.
Ketorolac
Generic NSAID oral tablet for short‑term pain; avoid long‑term use and in renal impairment.
Kestine
Brand oral antihistamine tablet (second‑generation); low sedation risk for most users.
Kemadrin
Brand anticholinergic oral tablet used for Parkinsonian symptoms; caution in elderly, glaucoma, BPH.
If you think there is a missing term, let us know using the contact form.