Sigletic

Package Leaflet: Information for the Patient

Sigletic, 25 mg, film-coated tablets

Sigletic, 50 mg, film-coated tablets

Sigletic, 100 mg, film-coated tablets

Sitagliptin

Read the package leaflet carefully before taking the medicine, as it contains important information for the patient.

• Keep this leaflet, you may need to read it again.
• If you have any further questions, ask your doctor or pharmacist.
• This medicine has been prescribed for you only. Do not pass it on to others. It may harm them, even if their symptoms are the same as yours.
• If you experience any side effects, including those not listed in this leaflet, please inform your doctor or pharmacist. See section 4.

Contents of the Package Leaflet

• 1. What is Sigletic and what is it used for
• 2. Important information before taking Sigletic
• 3. How to take Sigletic
• 4. Possible side effects
• 5. How to store Sigletic
• 6. Contents of the pack and other information

1. What is Sigletic and what is it used for

Sigletic contains the active substance sitagliptin, which belongs to a class of medicines called DPP-4 inhibitors (dipeptidyl peptidase-4 inhibitors), which reduce blood sugar levels in adults with type 2 diabetes.
This medicine helps to increase the amount of insulin released after a meal and decrease the amount of sugar produced by the body.
Your doctor has prescribed this medicine to reduce high blood sugar levels caused by type 2 diabetes. The medicine can be used alone or in combination with other medicines (insulin, metformin, sulfonylurea derivatives, or glitazones) that lower blood sugar levels, which may already be taken with meals and a program of physical exercise.
What is type 2 diabetes?
Type 2 diabetes is a disease in which the body does not produce enough insulin, and the insulin produced does not work as it should. The body may also produce too much sugar.
If this happens, sugar (glucose) builds up in the blood. This can lead to serious health problems, such as heart disease, kidney disease, loss of vision, and limb amputation.

2. Important information before taking Sigletic

When not to take Sigletic

• if you are allergic to sitagliptin or any of the other ingredients of this medicine (listed in section 6).

Warnings and precautions

In patients taking Sigletic, cases of pancreatitis (see section 4) have been reported.
If you experience blisters on the skin, it may be a sign of a disease called bullous pemphigoid. Your doctor may advise you to stop taking Sigletic.
Tell your doctor if you have or have had:

• pancreatic disease (e.g., pancreatitis);
• gallstones, alcohol dependence, or very high triglyceride levels in the blood. In such cases, the risk of pancreatitis (see section 4) may increase;
• type 1 diabetes;
• diabetic ketoacidosis (a complication of diabetes characterized by high blood sugar levels, rapid weight loss, nausea, or vomiting);
• any kidney disease that has occurred in the past or is present;
• an allergic reaction to Sigletic (see section 4).

Since this medicine does not work when blood sugar levels are low, it is unlikely to cause low blood sugar levels. However, if this medicine is taken with a sulfonylurea derivative or insulin, low blood sugar levels (hypoglycemia) may occur. Your doctor may reduce the dose of the sulfonylurea derivative or insulin.

Children and adolescents

Children and adolescents under 18 years of age should not take this medicine.
This medicine is not effective in children and adolescents aged 10 to 17 years. It is not known whether this medicine is safe and effective in children under 10 years of age.

Sigletic and other medicines

Tell your doctor or pharmacist about all medicines you are taking, have recently taken, or plan to take.
In particular, tell your doctor if you are taking digoxin (a medicine used to treat heart rhythm disorders and other heart conditions). When taking Sigletic with digoxin, your doctor may need to check your digoxin blood levels.

Pregnancy and breastfeeding

If you are pregnant or breastfeeding, think you may be pregnant, or plan to have a baby, ask your doctor or pharmacist for advice before taking this medicine.
Do not take this medicine during pregnancy.
It is not known whether this medicine passes into breast milk. Do not take this medicine while breastfeeding or if you plan to breastfeed.

Driving and using machines

This medicine has no or negligible influence on the ability to drive and use machines. However, when driving or using machines, consider that dizziness and drowsiness have been reported.
Taking this medicine with sulfonylurea derivatives or insulin may cause low blood sugar levels (hypoglycemia), which can affect your ability to drive or use machines or work without safe foot support.

Sigletic contains sodium

Sigletic contains less than 1 mmol of sodium (23 mg) per dose, which means it is essentially 'sodium-free'.

3. How to take Sigletic

Always take this medicine exactly as your doctor has told you. If you are not sure, ask your doctor or pharmacist.
The recommended dose is:

• one 100 mg film-coated tablet;
• once a day;
• taken orally.

If you have kidney problems, your doctor may prescribe a lower dose of Sigletic (e.g., 25 mg or 50 mg).
This medicine can be taken with or without food and drink.
Your doctor may prescribe this medicine alone or with other medicines that lower blood sugar levels.
Diet and exercise help your body use the sugar in your blood. While taking Sigletic, it is important to follow the diet and exercise plan recommended by your doctor.
The 50 mg and 100 mg tablets of Sigletic can be divided into two equal doses.
If your doctor has prescribed half a 50 mg or 100 mg tablet, follow the instructions below for dividing the tablets.

• 1. Place the tablet on a flat, hard surface (e.g., a table, countertop) with the scored side facing up.
• 2. Break the tablet in half along the vertical score line, pressing it against the surface with your index fingers, as shown in figures 1 and 2.

Figures 1 and 2: Dividing a Sigletic tablet into two equal doses.

Overdose of Sigletic

If you take more of this medicine than you should, contact your doctor immediately.

Missed dose of Sigletic

If you miss a dose, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose.

Stopping Sigletic treatment

To maintain control of your blood sugar levels, you should continue to take this medicine for as long as your doctor recommends. Do not stop taking this medicine without first talking to your doctor.
If you have any further questions on the use of this product, ask your doctor or pharmacist.

4. Possible side effects

Like all medicines, this medicine can cause side effects, although not everybody gets them.
STOP taking Sigletic and contact your doctor immediately if you experience any of the following serious side effects:

• Severe and persistent stomach pain (in the abdomen), which may radiate to the back, with or without nausea and vomiting - these may be symptoms of pancreatitis.

If you experience a severe allergic reaction (frequency not known), including rash, hives, blisters on the skin, or peeling of the skin, and swelling of the face, lips, tongue, and throat, which may cause difficulty breathing or swallowing, stop taking this medicine and contact your doctor immediately. Your doctor may prescribe a medicine to treat the allergic reaction and another medicine to treat your diabetes.
In some patients who added sitagliptin to metformin, the following side effects were reported:
Common (may affect up to 1 in 10 people): low blood sugar levels, nausea, bloating, vomiting.
Uncommon (may affect up to 1 in 100 people): stomach pain, diarrhea, constipation, drowsiness.
Some patients experienced various gastrointestinal symptoms after starting sitagliptin in combination with metformin (common).
In some patients who took sitagliptin in combination with a sulfonylurea derivative and metformin, the following side effects were reported:
Very common (may affect more than 1 in 10 people): low blood sugar levels.
Common: constipation.
In some patients who took sitagliptin and pioglitazone, the following side effects were reported:
Common: bloating, swelling of the hands or feet.
In some patients who took sitagliptin in combination with pioglitazone and metformin, the following side effects were reported:
Common: swelling of the hands or feet.
In some patients who took sitagliptin in combination with insulin (with or without metformin), the following side effects were reported:
Common: flu.
Uncommon: dry mouth.
In some patients who took sitagliptin alone or with other anti-diabetic medicines in clinical studies or after marketing authorization, the following side effects were reported:
Common: low blood sugar levels, headache, upper respiratory tract infections, stuffy or runny nose and sore throat, osteoarthritis, pain in the arm or leg.
Uncommon: dizziness, constipation, itching.
Rare: reduced platelet count.
Frequency not known: kidney disease (sometimes requiring dialysis), vomiting, joint pain, muscle pain, back pain, interstitial lung disease, bullous pemphigoid (a type of blistering skin condition).

Reporting side effects

If you experience any side effects, including those not listed in this leaflet, please inform your doctor or pharmacist, or nurse. Side effects can be reported directly to the Department of Drug Safety, Office for Registration of Medicinal Products, Medical Devices, and Biocidal Products
Jerozolimskie Avenue 181C
02-222 Warsaw
Phone: +48 22 49 21 301
Fax: +48 22 49 21 309
Website: https://smz.ezdrowie.gov.pl
Side effects can also be reported to the marketing authorization holder.
By reporting side effects, you can help provide more information on the safety of this medicine.

5. How to store Sigletic

No special precautions for storage are necessary.
Keep this medicine out of the sight and reach of children.
Do not use this medicine after the expiry date stated on the blister and carton after: "EXP". The expiry date refers to the last day of the month.
The inscription on the packaging after the abbreviation "EXP" indicates the expiry date, and after the abbreviation "Lot/LOT" indicates the batch number.
Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. This will help protect the environment.

6. Contents of the pack and other information

What Sigletic contains

• The active substance is sitagliptin. Each film-coated tablet contains sitagliptin phosphate monohydrate, equivalent to 25 mg, 50 mg, or 100 mg of sitagliptin.
• The other ingredients are: Tablet core: microcrystalline cellulose, calcium hydrogen phosphate, sodium carboxymethyl cellulose (type A), colloidal anhydrous silica, sodium stearyl fumarate. Tablet coating: polyvinyl alcohol, macrogol 3350, talc, titanium dioxide (E 171), yellow iron oxide (E 172), red iron oxide (E 172).

What Sigletic looks like and contents of the pack

Sigletic, 25 mg: light pink, round, biconvex film-coated tablet; diameter 5.9 - 6.3 mm.
Sigletic, 50 mg: light orange, round, biconvex film-coated tablet with a score line on one side and "50" embossed on the other side; diameter: 7.9 - 8.3 mm. The tablet can be divided into two equal doses.
Sigletic, 100 mg: light brown, round, biconvex film-coated tablet with a score line on one side and "100" embossed on the other side; diameter: 9.9-10.4 mm. The tablet can be divided into two equal doses.
PVC/PVDC/Aluminum blisters, in a cardboard box. Packs of 14, 28, 30, 56, 84, 90, 98 film-coated tablets.
Not all pack sizes may be marketed.

Marketing authorization holder and manufacturer

Marketing authorization holder
Zakłady Farmaceutyczne POLPHARMA S.A.
Pelplińska 19, 83-200 Starogard Gdański
phone: +48 22 364 61 01
Manufacturer
Zakłady Farmaceutyczne Polpharma S.A.
Production Plant in Nowa Dęba
Metalowca 2
39-460 Nowa Dęba
Zakłady Farmaceutyczne POLPHARMA S.A.
Pelplińska 19, 83-200 Starogard Gdański
Date of last revision of the leaflet:November 2024