Type 2 diabetes is managed with a combination of lifestyle changes and medicine, and for most people the first medicine prescribed is metformin — a pill that lowers the glucose your liver makes and helps your body use insulin better (NIDDK; MedlinePlus). Healthy eating, weight management, and regular physical activity are foundational: some people can lower their blood glucose with lifestyle changes alone, and these habits stay important even after medicines are added (NIDDK). There are no over-the-counter medicines that treat type 2 diabetes — the effective options are all prescription, and "blood-sugar support" supplements are not proven substitutes and can interact with diabetes drugs. When metformin alone is not enough, clinicians add from several prescription classes that each work differently — GLP-1 receptor agonists (e.g., semaglutide/Ozempic), SGLT2 inhibitors (e.g., empagliflozin/Jardiance), DPP-4 inhibitors (e.g., sitagliptin/Januvia), sulfonylureas (e.g., glipizide), or insulin (MedlinePlus). The choice is highly individualized: for people who also have heart disease, heart failure, or chronic kidney disease, certain SGLT2 inhibitors and GLP-1 receptor agonists are chosen for their proven cardiovascular benefits, with certain SGLT2 inhibitors also shown to slow the worsening of kidney disease (MedlinePlus). Your doctor decides which medicine and what dose fit your blood-sugar targets, other health conditions, and side-effect profile — this page describes the options rather than recommending one.
For options we rate, we show our independent FDA recall-safety rating(0–100) — a signal GoodRx and Drugs.com don’t provide. Higher is safer.
A doctor may prescribe these — not for self-treatment.
Glucophage Biguanide Our rating 70/100 | The medicine most people with type 2 diabetes start with; it lowers the glucose the liver makes and helps the body use insulin better, and may cause a small amount of weight loss (NIDDK; MedlinePlus). |
Ozempic GLP-1 receptor agonist Our rating 70/100 | A once-weekly injection (also available as an oral tablet, Rybelsus) that prompts the pancreas to release insulin when blood sugar is high, slows stomach emptying, and can reduce appetite and weight; also FDA-approved to lower heart-attack, stroke, and death risk in adults who also have heart and blood-vessel disease. Not a substitute for insulin (MedlinePlus; NIDDK). |
Mounjaro Dual GIP/GLP-1 receptor agonist | A once-weekly injection (an incretin mimetic) that helps the pancreas release insulin when blood sugar is high, slows stomach emptying, and often produces marked blood-sugar and weight reduction (MedlinePlus). |
Clinicians typically start with metformin plus lifestyle changes, then individualize from there. Rather than a single "best" drug, the second medicine is usually chosen by the whole health picture: for people who also have established heart disease, heart failure, or chronic kidney disease, an SGLT2 inhibitor (e.g., empagliflozin) or a GLP-1 receptor agonist (e.g., semaglutide) is often added because these classes have proven cardiovascular benefits, and certain SGLT2 inhibitors are also shown to slow worsening kidney disease (MedlinePlus). Other factors that guide the choice include how far the A1C is from target, whether weight loss is a goal, the risk of low blood sugar (sulfonylureas and insulin carry more), kidney function, cost and insurance coverage, and whether a person prefers a pill or is comfortable with a weekly or daily injection. A1C goals themselves are individualized. Over-the-counter "blood-sugar support" supplements such as cinnamon, chromium, or berberine are not proven replacements for prescribed treatment and some can affect blood sugar or interact with diabetes medicines, so they should be reviewed with a doctor or pharmacist before use. All of these medicines are prescription — which one, and at what dose, is a decision made with your clinician, not something to start, stop, or switch on your own.
See a doctor for diagnosis and to start or adjust any diabetes medicine — do not self-treat. Seek urgent or emergency care (call 911) for signs of a diabetes emergency: very high blood sugar with extreme thirst, frequent urination, blurred vision, nausea or vomiting, deep or rapid breathing, or fruity-smelling breath (possible diabetic ketoacidosis or a hyperosmolar crisis). Severe low blood sugar — confusion, seizures, or loss of consciousness, more likely with sulfonylureas or insulin — is also an emergency; treat mild lows with fast-acting sugar and call for help if the person cannot swallow or does not recover. Contact your clinician promptly for a non-healing foot sore or infection, chest pain, one-sided weakness, or blood sugars that stay high or swing low despite treatment. Keep regular check-ups so medicines, kidney function, and A1C can be monitored and adjusted.
General reference, not medical advice, and not a substitute for your doctor or pharmacist. The right choice depends on your symptoms, health conditions, age, and other medicines — always read each label and confirm before taking anything.
Jardiance SGLT2 inhibitor Our rating 68/100 |
| An oral medicine that lowers blood sugar by making the kidneys pass more glucose in the urine; also used to reduce the risk of cardiovascular death and heart-failure hospitalization and to slow worsening of kidney disease in certain adults (MedlinePlus). |
Januvia DPP-4 inhibitor | A once-daily pill that increases natural incretin hormones so the body lowers blood sugar when it is high; generally weight-neutral and well tolerated (MedlinePlus). |
Glucotrol Sulfonylurea Our rating 62/100 | An older, low-cost oral medicine that stimulates the pancreas to release more insulin; because it drives insulin release it can cause low blood sugar (MedlinePlus). |
insulin various (e.g., Lantus, Humalog) Insulin | Injected insulin replaces or supplements the body's own insulin and is used when other medicines are not enough or in certain situations; GLP-1 medicines are not substitutes for insulin (NIDDK; MedlinePlus). |