Avaloop Oral Solution Sugar Free 200ml

Avaloop Oral Solution Sugar Free 200ml is one of the most commonly recommended bowel preparations for colonoscopy. It is osmotically balanced and non-absorbable, cleansing the bowel by simple washout without significant fluid or electrolyte shifts. This makes it safer than older sodium phosphate preparations, particularly in patients with kidney, heart, or liver disease.

It is supplied as powder in containers or sachets, reconstituted with water. The full prescribed volume is consumed over several hours, the evening before the procedure, or in a split-dose regimen with half the volume the evening before and the other half on the morning of the procedure. Split-dose regimens are now preferred as they produce cleaner preparation and better polyp detection.

Polyethylene Glycol (PEG) preparations combined with additions such as ascorbic acid, bisacodyl, or magnesium citrate may improve tolerability while maintaining efficacy.

Bowel preparation before colonoscopy

Standard cleansing for diagnostic and screening colonoscopy.

Bowel preparation before sigmoidoscopy or barium enema

For clear visualisation of the colon.

Bowel preparation before colorectal surgery

Required to clean the bowel before the surgical procedure.

Severe constipation or faecal impaction

Used in specific cases where other measures have failed.

Toxic ingestion

Whole-bowel irrigation for certain drug or toxin ingestions.

• Effective at cleansing the colon for bowel preparation.

• Osmotically balanced electrolytes prevent significant fluid or electrolyte shifts.

• Safer than older sodium phosphate preparations, especially in renal, cardiac, or hepatic disease.

• No significant absorption into the body, with minimal systemic effects.

• Suitable for the elderly and patients with comorbidities.

• Helps clean the colon, which aids in better detection of polyps and lesions during colonoscopy.

• Split-dose regimens improve tolerability and cleansing quality.

Common (during preparation)

• Nausea, bloating, abdominal fullness or cramping

• Vomiting (especially with rapid ingestion)

• Watery diarrhoea (the intended effect)

• Anal irritation from frequent stooling

• Mild dizziness or fatigue

• Unpleasant salty taste

• Chills

Uncommon

• Dehydration if other fluid intake is inadequate

• Mild electrolyte changes (low sodium or potassium)

• Sleep disturbance from overnight bowel movements

• Headache

Serious side effects requiring immediate attention

• Severe nausea or vomiting that prevents completion of the prep

• Aspiration pneumonia (inhaling vomit into the lungs), especially in the elderly or sedated patients

• Severe dehydration with fainting or reduced urine output

• Significant electrolyte disturbance with muscle weakness, palpitations, or confusion

• Bowel perforation (rare) may present as severe, persistent abdominal pain

• Severe allergic reactions, which may manifest as swelling or difficulty in breathing

• Mallory–Weiss tear (oesophageal tear from forceful vomiting), which presents as bloody vomit

Use Avaloop Oral Solution Sugar Free 200ml exactly as instructed by your doctor or procedure centre. Reconstitute the powder in cold water as directed. Many centres now use split-dose regimens, with half the volume taken the evening before and the other half taken several hours before the colonoscopy. Drink slowly and steadily until the prescribed volume is consumed and bowel motions are clear or yellow-tinged liquid without solid matter.

Stop eating solid food the morning before the procedure. You can continue taking clear fluids such as water, broth, apple juice, or sports drinks (sugar-free) up to the cut-off time as specified by your centre. Chilling the solution and using a straw can improve tolerability. Sucking on hard sweets between glasses helps with nausea. If you vomit or feel very nauseous, slow down or pause for around 30 minutes before resuming. Tell your doctor if you cannot complete the prep or take medications that need timing around the procedure.

Bowel preparation is essential for colonoscopy because residual stool obscures the bowel wall and prevents the detection of polyps, ulcers, and tumours. Avaloop Oral Solution Sugar Free 200ml flushes out the colon completely while keeping fluid and electrolyte balance stable.

The polyethylene glycol component is a long, inert polymer too large to be absorbed across the intestinal wall. It travels unchanged into the colon and binds to large quantities of water through hydrogen bonding. The water remains in the lumen rather than being absorbed by the bowel wall, producing high-volume watery diarrhoea that physically washes solid stool out of the colon.

The added electrolytes, potassium chloride, sodium bicarbonate, and sodium chloride, are present in concentrations that closely match the body's normal extracellular fluid. As a large volume of stool passes through the gut, these electrolytes create an optimal balance and prevent the net movement of sodium, potassium, chloride, and bicarbonate between the gut and the bloodstream. The result is an osmotically balanced washout that cleans the colon without causing dehydration, low sodium, low potassium, or acid-base disturbance.

This is the key safety advantage over older preparations like sodium phosphate, which can cause significant fluid shifts and rare but serious complications, including kidney damage, severe electrolyte imbalance, and arrhythmias, particularly in elderly or renally impaired patients. As Avaloop Oral Solution Sugar Free 200ml is not absorbed and does not significantly alter electrolyte balance, it is the preferred bowel preparation in patients with cardiac, renal, hepatic, or metabolic comorbidities.

• Solid food (CRITICAL): Stop consumption of any solid food before and during the preparation as instructed.

• Clear liquids (PERMITTED): Water, broth, apple juice, and sports drinks are encouraged.

• Red or purple drinks (AVOID): Can stain the colon and mimic blood during colonoscopy.

• Alcohol (AVOID): Worsens dehydration and is not allowed before sedation.

Other oral medicines

SEVERE

Drugs taken just before or during the prep may not be properly absorbed. Discuss with your doctor before taking the preparation.

Oral antidiabetic drugs and insulin

CRITICAL

Risk of hypoglycaemia (low blood sugar) during fasting. Your doctor may adjust the dosage.

Diuretics

CAUTION

To reduce the risk of dehydration and electrolyte imbalances, stopping may be required. Consult your doctor for guidance.

ACE inhibitors and ARBs

CAUTION

Often held on the morning of the procedure. Consult your doctor for guidance.

Anticoagulants and antiplatelet agents

CAUTION

Stopping schedule depends on the specific drug and bleeding risk. Consult your doctor for guidance.

Iron supplements

MODERATE

Stop before the procedure as advised. Iron stains the bowel and obscures visualisation.

• Bowel obstruction or perforation (AVOID): Adding osmotic fluid to a blocked or perforated bowel increases the risk of rupture, peritonitis, and sepsis.

• Toxic megacolon, gastric retention, ileus (AVOID): Without functional motility, the large prep volume accumulates and can trigger perforation or aspiration.

• Severe IBD with active flare (CAUTION): The inflamed bowel wall can worsen or rupture under the osmotic and volume load of a full bowel prep.

• Heart failure (CAUTION): The large fluid volume and sodium load can precipitate volume overload and decompensation.

• Severe renal impairment (CAUTION): PEG-electrolyte preps are preferred over phosphate-based ones, but electrolyte shifts (especially potassium) still need close monitoring.

• Phenylketonuria (CAUTION): Some flavoured preparations contain aspartame, which breaks down into phenylalanine that PKU patients can't process.

• Dysphagia or impaired swallowing (CAUTION): The large prep volume poses an aspiration risk. Nnasogastric administration may be safer.

Overdose may present as severe diarrhoea, dehydration, and electrolyte disturbance, most commonly low sodium, low potassium, and acid-base imbalance. Severe cases may cause seizures, arrhythmias, or coma. Management may include stopping the prep, replacing fluids and electrolytes intravenously as needed, monitoring electrolytes and cardiac rhythm, and treating seizures with benzodiazepines. Hospital admission may be required to manage severe cases.

Avaloop Oral Solution Sugar Free 200ml is not a daily medicine. It is used once before a planned procedure. If you forget to start the preparation on time, contact your doctor or procedure centre immediately. The procedure may need to be rescheduled if the prep is incomplete or rushed. Do not compress the prep into a much shorter time, as this causes severe nausea, vomiting, and aspiration risk.